* [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
@ 2024-03-26 16:28 ` Abel Vesa
0 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
This RFC prepares for and adds support for 2 buses, which is supported
in HW starting with version 7. Until now, none of the currently
supported platforms in upstream have used the second bus. The X1E80100
platform, on the other hand, needs the second bus for the USB2.0 to work
as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
all found on the second bus.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
Changes in v6:
- Changed the compatible to platform specific (X1E80100) along with the
schema. Fixed the spmi buses unit addresses and added the empty ranges
property. Added missing properties to the spmi buses and the
"unevaluatedProperties: false".
- Deprecated the "qcom,bus-id" in the legacy schema.
- Changed the driver to check for legacy compatible first
- Link to v5: https://lore.kernel.org/r/20240221-spmi-multi-master-support-v5-0-3255ca413a0b@linaro.org
Changes in v5:
- Dropped the RFC as there aren't any concerns about the approach anymore
- Dropped the unused dev and res variables from pmic_arb_get_obsrvr_chnls_v2
- Link to v4: https://lore.kernel.org/r/20240220-spmi-multi-master-support-v4-0-dc813c878ba8@linaro.org
Changes in v4:
- Fixed comment above pmic_arb_init_apid_v7 by dropping the extra "bus" word
- Swicthed to devm_platform_ioremap_resource_byname for obsrvr and chnls.
The core remains with platform_get_resource_byname as we need the core size.
- Dropped comment from probe related to the need of platform_get_resource_byname
as it not true anymore.
- Dropped the qcom,bus-id optional property.
- Link to v3: https://lore.kernel.org/r/20240214-spmi-multi-master-support-v3-0-0bae0ef04faf@linaro.org
Changes in v3:
- Split the change into 3 separate patches. First 2 patches are moving
apid init and core resources into version specific ops. Third one is
adding the support for 2 buses and dedicated compatible.
- Added separate bindings patch
- Link to v2: https://lore.kernel.org/r/20240213-spmi-multi-master-support-v2-1-b3b102326906@linaro.org
Changes in v2:
- Reworked it so that it registers a spmi controller for each bus
rather than relying on the generic framework to pass on the bus
(master) id.
- Link to v1: https://lore.kernel.org/r/20240207-spmi-multi-master-support-v1-0-ce57f301c7fd@linaro.org
---
Abel Vesa (5):
dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
dt-bindings: spmi: Deprecate qcom,bus-id
spmi: pmic-arb: Make the APID init a version operation
spmi: pmic-arb: Make core resources acquiring a version operation
spmi: pmic-arb: Add multi bus support
.../bindings/spmi/qcom,spmi-pmic-arb.yaml | 1 +
.../bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml | 136 +++
drivers/spmi/spmi-pmic-arb.c | 948 +++++++++++++--------
3 files changed, 715 insertions(+), 370 deletions(-)
---
base-commit: 4893c639cc3659cefaa675bf1e59f4e7571afb5c
change-id: 20240207-spmi-multi-master-support-832a704b779b
Best regards,
--
Abel Vesa <abel.vesa@linaro.org>
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
@ 2024-03-26 16:28 ` Abel Vesa
0 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
This RFC prepares for and adds support for 2 buses, which is supported
in HW starting with version 7. Until now, none of the currently
supported platforms in upstream have used the second bus. The X1E80100
platform, on the other hand, needs the second bus for the USB2.0 to work
as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
all found on the second bus.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
Changes in v6:
- Changed the compatible to platform specific (X1E80100) along with the
schema. Fixed the spmi buses unit addresses and added the empty ranges
property. Added missing properties to the spmi buses and the
"unevaluatedProperties: false".
- Deprecated the "qcom,bus-id" in the legacy schema.
- Changed the driver to check for legacy compatible first
- Link to v5: https://lore.kernel.org/r/20240221-spmi-multi-master-support-v5-0-3255ca413a0b@linaro.org
Changes in v5:
- Dropped the RFC as there aren't any concerns about the approach anymore
- Dropped the unused dev and res variables from pmic_arb_get_obsrvr_chnls_v2
- Link to v4: https://lore.kernel.org/r/20240220-spmi-multi-master-support-v4-0-dc813c878ba8@linaro.org
Changes in v4:
- Fixed comment above pmic_arb_init_apid_v7 by dropping the extra "bus" word
- Swicthed to devm_platform_ioremap_resource_byname for obsrvr and chnls.
The core remains with platform_get_resource_byname as we need the core size.
- Dropped comment from probe related to the need of platform_get_resource_byname
as it not true anymore.
- Dropped the qcom,bus-id optional property.
- Link to v3: https://lore.kernel.org/r/20240214-spmi-multi-master-support-v3-0-0bae0ef04faf@linaro.org
Changes in v3:
- Split the change into 3 separate patches. First 2 patches are moving
apid init and core resources into version specific ops. Third one is
adding the support for 2 buses and dedicated compatible.
- Added separate bindings patch
- Link to v2: https://lore.kernel.org/r/20240213-spmi-multi-master-support-v2-1-b3b102326906@linaro.org
Changes in v2:
- Reworked it so that it registers a spmi controller for each bus
rather than relying on the generic framework to pass on the bus
(master) id.
- Link to v1: https://lore.kernel.org/r/20240207-spmi-multi-master-support-v1-0-ce57f301c7fd@linaro.org
---
Abel Vesa (5):
dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
dt-bindings: spmi: Deprecate qcom,bus-id
spmi: pmic-arb: Make the APID init a version operation
spmi: pmic-arb: Make core resources acquiring a version operation
spmi: pmic-arb: Add multi bus support
.../bindings/spmi/qcom,spmi-pmic-arb.yaml | 1 +
.../bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml | 136 +++
drivers/spmi/spmi-pmic-arb.c | 948 +++++++++++++--------
3 files changed, 715 insertions(+), 370 deletions(-)
---
base-commit: 4893c639cc3659cefaa675bf1e59f4e7571afb5c
change-id: 20240207-spmi-multi-master-support-832a704b779b
Best regards,
--
Abel Vesa <abel.vesa@linaro.org>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH RESEND v6 1/5] dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-26 16:28 ` Abel Vesa
-1 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
Add dedicated schema for X1E80100 PMIC ARB (v7) as it allows multiple
buses by declaring them as child nodes.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
.../bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml | 136 +++++++++++++++++++++
1 file changed, 136 insertions(+)
diff --git a/Documentation/devicetree/bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml b/Documentation/devicetree/bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml
new file mode 100644
index 000000000000..bdf362c4a147
--- /dev/null
+++ b/Documentation/devicetree/bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml
@@ -0,0 +1,136 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spmi/qcom,x1e80100-spmi-pmic-arb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm X1E80100 SPMI Controller (PMIC Arbiter v7)
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+
+description: |
+ The X1E80100 SPMI PMIC Arbiter implements HW version 7 and it's an SPMI
+ controller with wrapping arbitration logic to allow for multiple on-chip
+ devices to control up to 2 SPMI separate buses.
+
+ The PMIC Arbiter can also act as an interrupt controller, providing interrupts
+ to slave devices.
+
+properties:
+ compatible:
+ const: qcom,x1e80100-spmi-pmic-arb
+
+ reg:
+ items:
+ - description: core registers
+ - description: tx-channel per virtual slave regosters
+ - description: rx-channel (called observer) per virtual slave registers
+
+ reg-names:
+ items:
+ - const: core
+ - const: chnls
+ - const: obsrvr
+
+ ranges: true
+
+ '#address-cells':
+ const: 2
+
+ '#size-cells':
+ const: 2
+
+ qcom,ee:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+ description: >
+ indicates the active Execution Environment identifier
+
+ qcom,channel:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+ description: >
+ which of the PMIC Arb provided channels to use for accesses
+
+patternProperties:
+ "spmi@[a-f0-9]+$":
+ type: object
+ $ref: /schemas/spmi/spmi.yaml
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ items:
+ - description: configuration registers
+ - description: interrupt controller registers
+
+ reg-names:
+ items:
+ - const: cnfg
+ - const: intr
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ const: periph_irq
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 4
+ description: |
+ cell 1: slave ID for the requested interrupt (0-15)
+ cell 2: peripheral ID for requested interrupt (0-255)
+ cell 3: the requested peripheral interrupt (0-7)
+ cell 4: interrupt flags indicating level-sense information,
+ as defined in dt-bindings/interrupt-controller/irq.h
+
+required:
+ - compatible
+ - reg-names
+ - qcom,ee
+ - qcom,channel
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ spmi: arbiter@c400000 {
+ compatible = "qcom,x1e80100-spmi-pmic-arb";
+ reg = <0 0x0c400000 0 0x3000>,
+ <0 0x0c500000 0 0x4000000>,
+ <0 0x0c440000 0 0x80000>;
+ reg-names = "core", "chnls", "obsrvr";
+
+ qcom,ee = <0>;
+ qcom,channel = <0>;
+
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ spmi_bus0: spmi@c42d000 {
+ reg = <0 0x0c42d000 0 0x4000>,
+ <0 0x0c4c0000 0 0x10000>;
+ reg-names = "cnfg", "intr";
+
+ interrupt-names = "periph_irq";
+ interrupts-extended = <&pdc 1 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <4>;
+
+ #address-cells = <2>;
+ #size-cells = <0>;
+ };
+ };
+ };
--
2.34.1
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH RESEND v6 1/5] dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
@ 2024-03-26 16:28 ` Abel Vesa
0 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
Add dedicated schema for X1E80100 PMIC ARB (v7) as it allows multiple
buses by declaring them as child nodes.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
.../bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml | 136 +++++++++++++++++++++
1 file changed, 136 insertions(+)
diff --git a/Documentation/devicetree/bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml b/Documentation/devicetree/bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml
new file mode 100644
index 000000000000..bdf362c4a147
--- /dev/null
+++ b/Documentation/devicetree/bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml
@@ -0,0 +1,136 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spmi/qcom,x1e80100-spmi-pmic-arb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm X1E80100 SPMI Controller (PMIC Arbiter v7)
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+
+description: |
+ The X1E80100 SPMI PMIC Arbiter implements HW version 7 and it's an SPMI
+ controller with wrapping arbitration logic to allow for multiple on-chip
+ devices to control up to 2 SPMI separate buses.
+
+ The PMIC Arbiter can also act as an interrupt controller, providing interrupts
+ to slave devices.
+
+properties:
+ compatible:
+ const: qcom,x1e80100-spmi-pmic-arb
+
+ reg:
+ items:
+ - description: core registers
+ - description: tx-channel per virtual slave regosters
+ - description: rx-channel (called observer) per virtual slave registers
+
+ reg-names:
+ items:
+ - const: core
+ - const: chnls
+ - const: obsrvr
+
+ ranges: true
+
+ '#address-cells':
+ const: 2
+
+ '#size-cells':
+ const: 2
+
+ qcom,ee:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+ description: >
+ indicates the active Execution Environment identifier
+
+ qcom,channel:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+ description: >
+ which of the PMIC Arb provided channels to use for accesses
+
+patternProperties:
+ "spmi@[a-f0-9]+$":
+ type: object
+ $ref: /schemas/spmi/spmi.yaml
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ items:
+ - description: configuration registers
+ - description: interrupt controller registers
+
+ reg-names:
+ items:
+ - const: cnfg
+ - const: intr
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ const: periph_irq
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 4
+ description: |
+ cell 1: slave ID for the requested interrupt (0-15)
+ cell 2: peripheral ID for requested interrupt (0-255)
+ cell 3: the requested peripheral interrupt (0-7)
+ cell 4: interrupt flags indicating level-sense information,
+ as defined in dt-bindings/interrupt-controller/irq.h
+
+required:
+ - compatible
+ - reg-names
+ - qcom,ee
+ - qcom,channel
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ spmi: arbiter@c400000 {
+ compatible = "qcom,x1e80100-spmi-pmic-arb";
+ reg = <0 0x0c400000 0 0x3000>,
+ <0 0x0c500000 0 0x4000000>,
+ <0 0x0c440000 0 0x80000>;
+ reg-names = "core", "chnls", "obsrvr";
+
+ qcom,ee = <0>;
+ qcom,channel = <0>;
+
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ spmi_bus0: spmi@c42d000 {
+ reg = <0 0x0c42d000 0 0x4000>,
+ <0 0x0c4c0000 0 0x10000>;
+ reg-names = "cnfg", "intr";
+
+ interrupt-names = "periph_irq";
+ interrupts-extended = <&pdc 1 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <4>;
+
+ #address-cells = <2>;
+ #size-cells = <0>;
+ };
+ };
+ };
--
2.34.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH RESEND v6 2/5] dt-bindings: spmi: Deprecate qcom,bus-id
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-26 16:28 ` Abel Vesa
-1 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
As it is optional and no platform is actually using the secondary bus,
deprecate the qcom,bus-id property. For newer platforms that implement
SPMI PMIC ARB v7 in HW, the X1E80100 approach should be used.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml
index f983b4af6db9..51daf1b847a9 100644
--- a/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml
+++ b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml
@@ -92,6 +92,7 @@ properties:
description: >
SPMI bus instance. only applicable to PMIC arbiter version 7 and beyond.
Supported values, 0 = primary bus, 1 = secondary bus
+ deprecated: true
required:
- compatible
--
2.34.1
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH RESEND v6 2/5] dt-bindings: spmi: Deprecate qcom,bus-id
@ 2024-03-26 16:28 ` Abel Vesa
0 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
As it is optional and no platform is actually using the secondary bus,
deprecate the qcom,bus-id property. For newer platforms that implement
SPMI PMIC ARB v7 in HW, the X1E80100 approach should be used.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml
index f983b4af6db9..51daf1b847a9 100644
--- a/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml
+++ b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml
@@ -92,6 +92,7 @@ properties:
description: >
SPMI bus instance. only applicable to PMIC arbiter version 7 and beyond.
Supported values, 0 = primary bus, 1 = secondary bus
+ deprecated: true
required:
- compatible
--
2.34.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH RESEND v6 3/5] spmi: pmic-arb: Make the APID init a version operation
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-26 16:28 ` Abel Vesa
-1 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
Rather than using conditionals in probe function, add the APID init
as a version specific operation. Due to v7, which supports multiple
buses, pass on the bus index to be used for sorting out the apid base
and count.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
drivers/spmi/spmi-pmic-arb.c | 199 +++++++++++++++++++++++++++----------------
1 file changed, 124 insertions(+), 75 deletions(-)
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 9ed1180fe31f..38fed8a585fe 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -183,6 +183,7 @@ struct spmi_pmic_arb {
* struct pmic_arb_ver_ops - version dependent functionality.
*
* @ver_str: version string.
+ * @init_apid: finds the apid base and count
* @ppid_to_apid: finds the apid for a given ppid.
* @non_data_cmd: on v1 issues an spmi non-data command.
* on v2 no HW support, returns -EOPNOTSUPP.
@@ -202,6 +203,7 @@ struct spmi_pmic_arb {
*/
struct pmic_arb_ver_ops {
const char *ver_str;
+ int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
/* spmi commands (read_cmd, write_cmd, cmd) functionality */
int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
@@ -942,6 +944,38 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
return 0;
}
+static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
+{
+ /*
+ * Initialize max_apid/min_apid to the opposite bounds, during
+ * the irq domain translation, we are sure to update these
+ */
+ pmic_arb->max_apid = 0;
+ pmic_arb->min_apid = pmic_arb->max_periphs - 1;
+
+ return 0;
+}
+
+static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
+{
+ u32 *mapping_table;
+
+ if (index) {
+ dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
+ index);
+ return -EINVAL;
+ }
+
+ mapping_table = devm_kcalloc(&pmic_arb->spmic->dev, pmic_arb->max_periphs,
+ sizeof(*mapping_table), GFP_KERNEL);
+ if (!mapping_table)
+ return -ENOMEM;
+
+ pmic_arb->mapping_table = mapping_table;
+
+ return pmic_arb_init_apid_min_max(pmic_arb);
+}
+
static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
{
u32 *mapping_table = pmic_arb->mapping_table;
@@ -1144,6 +1178,40 @@ static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
return 0x1000 * pmic_arb->ee + 0x8000 * apid;
}
+static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
+{
+ int ret;
+
+ if (index) {
+ dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
+ index);
+ return -EINVAL;
+ }
+
+ pmic_arb->base_apid = 0;
+ pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ PMIC_ARB_FEATURES_PERIPH_MASK;
+
+ if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
+ dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
+ pmic_arb->base_apid + pmic_arb->apid_count);
+ return -EINVAL;
+ }
+
+ ret = pmic_arb_init_apid_min_max(pmic_arb);
+ if (ret)
+ return ret;
+
+ ret = pmic_arb_read_apid_map_v5(pmic_arb);
+ if (ret) {
+ dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
/*
* v5 offset per ee and per apid for observer channels and per apid for
* read/write channels.
@@ -1178,6 +1246,49 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
return offset;
}
+/*
+ * Only v7 supports 2 buses. Each bus will get a different apid count, read
+ * from different registers.
+ */
+static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
+{
+ int ret;
+
+ if (index == 0) {
+ pmic_arb->base_apid = 0;
+ pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ PMIC_ARB_FEATURES_PERIPH_MASK;
+ } else if (index == 1) {
+ pmic_arb->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ PMIC_ARB_FEATURES_PERIPH_MASK;
+ pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
+ PMIC_ARB_FEATURES_PERIPH_MASK;
+ } else {
+ dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
+ index);
+ return -EINVAL;
+ }
+
+ if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
+ dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
+ pmic_arb->base_apid + pmic_arb->apid_count);
+ return -EINVAL;
+ }
+
+ ret = pmic_arb_init_apid_min_max(pmic_arb);
+ if (ret)
+ return ret;
+
+ ret = pmic_arb_read_apid_map_v5(pmic_arb);
+ if (ret) {
+ dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
/*
* v7 offset per ee and per apid for observer channels and per apid for
* read/write channels.
@@ -1358,6 +1469,7 @@ pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
static const struct pmic_arb_ver_ops pmic_arb_v1 = {
.ver_str = "v1",
+ .init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v1,
.non_data_cmd = pmic_arb_non_data_cmd_v1,
.offset = pmic_arb_offset_v1,
@@ -1372,6 +1484,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v1 = {
static const struct pmic_arb_ver_ops pmic_arb_v2 = {
.ver_str = "v2",
+ .init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v2,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
.offset = pmic_arb_offset_v2,
@@ -1386,6 +1499,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v2 = {
static const struct pmic_arb_ver_ops pmic_arb_v3 = {
.ver_str = "v3",
+ .init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v2,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
.offset = pmic_arb_offset_v2,
@@ -1400,6 +1514,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v3 = {
static const struct pmic_arb_ver_ops pmic_arb_v5 = {
.ver_str = "v5",
+ .init_apid = pmic_arb_init_apid_v5,
.ppid_to_apid = pmic_arb_ppid_to_apid_v5,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
.offset = pmic_arb_offset_v5,
@@ -1414,6 +1529,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v5 = {
static const struct pmic_arb_ver_ops pmic_arb_v7 = {
.ver_str = "v7",
+ .init_apid = pmic_arb_init_apid_v7,
.ppid_to_apid = pmic_arb_ppid_to_apid_v5,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
.offset = pmic_arb_offset_v7,
@@ -1439,7 +1555,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
struct spmi_controller *ctrl;
struct resource *res;
void __iomem *core;
- u32 *mapping_table;
u32 channel, ee, hw_ver;
int err;
@@ -1467,12 +1582,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
pmic_arb->core_size = resource_size(res);
- pmic_arb->ppid_to_apid = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PPID,
- sizeof(*pmic_arb->ppid_to_apid),
- GFP_KERNEL);
- if (!pmic_arb->ppid_to_apid)
- return -ENOMEM;
-
hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
if (hw_ver < PMIC_ARB_VERSION_V2_MIN) {
@@ -1506,58 +1615,17 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
return PTR_ERR(pmic_arb->wr_base);
}
- pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
+ dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
+ pmic_arb->ver_ops->ver_str, hw_ver);
- if (hw_ver >= PMIC_ARB_VERSION_V7_MIN) {
+ if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
+ pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
+ else
pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
- /* Optional property for v7: */
- of_property_read_u32(pdev->dev.of_node, "qcom,bus-id",
- &pmic_arb->bus_instance);
- if (pmic_arb->bus_instance > 1) {
- dev_err(&pdev->dev, "invalid bus instance (%u) specified\n",
- pmic_arb->bus_instance);
- return -EINVAL;
- }
-
- if (pmic_arb->bus_instance == 0) {
- pmic_arb->base_apid = 0;
- pmic_arb->apid_count =
- readl_relaxed(core + PMIC_ARB_FEATURES) &
- PMIC_ARB_FEATURES_PERIPH_MASK;
- } else {
- pmic_arb->base_apid =
- readl_relaxed(core + PMIC_ARB_FEATURES) &
- PMIC_ARB_FEATURES_PERIPH_MASK;
- pmic_arb->apid_count =
- readl_relaxed(core + PMIC_ARB_FEATURES1) &
- PMIC_ARB_FEATURES_PERIPH_MASK;
- }
- if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
- dev_err(&pdev->dev, "Unsupported APID count %d detected\n",
- pmic_arb->base_apid + pmic_arb->apid_count);
- return -EINVAL;
- }
- } else if (hw_ver >= PMIC_ARB_VERSION_V5_MIN) {
- pmic_arb->base_apid = 0;
- pmic_arb->apid_count = readl_relaxed(core + PMIC_ARB_FEATURES) &
- PMIC_ARB_FEATURES_PERIPH_MASK;
-
- if (pmic_arb->apid_count > pmic_arb->max_periphs) {
- dev_err(&pdev->dev, "Unsupported APID count %d detected\n",
- pmic_arb->apid_count);
- return -EINVAL;
- }
- }
-
- pmic_arb->apid_data = devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs,
- sizeof(*pmic_arb->apid_data),
- GFP_KERNEL);
- if (!pmic_arb->apid_data)
- return -ENOMEM;
-
- dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
- pmic_arb->ver_ops->ver_str, hw_ver);
+ err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
+ if (err)
+ return err;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr");
pmic_arb->intr = devm_ioremap_resource(&ctrl->dev, res);
@@ -1599,16 +1667,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
}
pmic_arb->ee = ee;
- mapping_table = devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs,
- sizeof(*mapping_table), GFP_KERNEL);
- if (!mapping_table)
- return -ENOMEM;
-
- pmic_arb->mapping_table = mapping_table;
- /* Initialize max_apid/min_apid to the opposite bounds, during
- * the irq domain translation, we are sure to update these */
- pmic_arb->max_apid = 0;
- pmic_arb->min_apid = pmic_arb->max_periphs - 1;
platform_set_drvdata(pdev, ctrl);
raw_spin_lock_init(&pmic_arb->lock);
@@ -1617,15 +1675,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
ctrl->read_cmd = pmic_arb_read_cmd;
ctrl->write_cmd = pmic_arb_write_cmd;
- if (hw_ver >= PMIC_ARB_VERSION_V5_MIN) {
- err = pmic_arb_read_apid_map_v5(pmic_arb);
- if (err) {
- dev_err(&pdev->dev, "could not read APID->PPID mapping table, rc= %d\n",
- err);
- return err;
- }
- }
-
dev_dbg(&pdev->dev, "adding irq domain\n");
pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node,
&pmic_arb_irq_domain_ops, pmic_arb);
--
2.34.1
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH RESEND v6 3/5] spmi: pmic-arb: Make the APID init a version operation
@ 2024-03-26 16:28 ` Abel Vesa
0 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
Rather than using conditionals in probe function, add the APID init
as a version specific operation. Due to v7, which supports multiple
buses, pass on the bus index to be used for sorting out the apid base
and count.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
drivers/spmi/spmi-pmic-arb.c | 199 +++++++++++++++++++++++++++----------------
1 file changed, 124 insertions(+), 75 deletions(-)
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 9ed1180fe31f..38fed8a585fe 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -183,6 +183,7 @@ struct spmi_pmic_arb {
* struct pmic_arb_ver_ops - version dependent functionality.
*
* @ver_str: version string.
+ * @init_apid: finds the apid base and count
* @ppid_to_apid: finds the apid for a given ppid.
* @non_data_cmd: on v1 issues an spmi non-data command.
* on v2 no HW support, returns -EOPNOTSUPP.
@@ -202,6 +203,7 @@ struct spmi_pmic_arb {
*/
struct pmic_arb_ver_ops {
const char *ver_str;
+ int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
/* spmi commands (read_cmd, write_cmd, cmd) functionality */
int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
@@ -942,6 +944,38 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
return 0;
}
+static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
+{
+ /*
+ * Initialize max_apid/min_apid to the opposite bounds, during
+ * the irq domain translation, we are sure to update these
+ */
+ pmic_arb->max_apid = 0;
+ pmic_arb->min_apid = pmic_arb->max_periphs - 1;
+
+ return 0;
+}
+
+static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
+{
+ u32 *mapping_table;
+
+ if (index) {
+ dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
+ index);
+ return -EINVAL;
+ }
+
+ mapping_table = devm_kcalloc(&pmic_arb->spmic->dev, pmic_arb->max_periphs,
+ sizeof(*mapping_table), GFP_KERNEL);
+ if (!mapping_table)
+ return -ENOMEM;
+
+ pmic_arb->mapping_table = mapping_table;
+
+ return pmic_arb_init_apid_min_max(pmic_arb);
+}
+
static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
{
u32 *mapping_table = pmic_arb->mapping_table;
@@ -1144,6 +1178,40 @@ static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
return 0x1000 * pmic_arb->ee + 0x8000 * apid;
}
+static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
+{
+ int ret;
+
+ if (index) {
+ dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
+ index);
+ return -EINVAL;
+ }
+
+ pmic_arb->base_apid = 0;
+ pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ PMIC_ARB_FEATURES_PERIPH_MASK;
+
+ if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
+ dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
+ pmic_arb->base_apid + pmic_arb->apid_count);
+ return -EINVAL;
+ }
+
+ ret = pmic_arb_init_apid_min_max(pmic_arb);
+ if (ret)
+ return ret;
+
+ ret = pmic_arb_read_apid_map_v5(pmic_arb);
+ if (ret) {
+ dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
/*
* v5 offset per ee and per apid for observer channels and per apid for
* read/write channels.
@@ -1178,6 +1246,49 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
return offset;
}
+/*
+ * Only v7 supports 2 buses. Each bus will get a different apid count, read
+ * from different registers.
+ */
+static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
+{
+ int ret;
+
+ if (index == 0) {
+ pmic_arb->base_apid = 0;
+ pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ PMIC_ARB_FEATURES_PERIPH_MASK;
+ } else if (index == 1) {
+ pmic_arb->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ PMIC_ARB_FEATURES_PERIPH_MASK;
+ pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
+ PMIC_ARB_FEATURES_PERIPH_MASK;
+ } else {
+ dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
+ index);
+ return -EINVAL;
+ }
+
+ if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
+ dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
+ pmic_arb->base_apid + pmic_arb->apid_count);
+ return -EINVAL;
+ }
+
+ ret = pmic_arb_init_apid_min_max(pmic_arb);
+ if (ret)
+ return ret;
+
+ ret = pmic_arb_read_apid_map_v5(pmic_arb);
+ if (ret) {
+ dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
/*
* v7 offset per ee and per apid for observer channels and per apid for
* read/write channels.
@@ -1358,6 +1469,7 @@ pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
static const struct pmic_arb_ver_ops pmic_arb_v1 = {
.ver_str = "v1",
+ .init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v1,
.non_data_cmd = pmic_arb_non_data_cmd_v1,
.offset = pmic_arb_offset_v1,
@@ -1372,6 +1484,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v1 = {
static const struct pmic_arb_ver_ops pmic_arb_v2 = {
.ver_str = "v2",
+ .init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v2,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
.offset = pmic_arb_offset_v2,
@@ -1386,6 +1499,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v2 = {
static const struct pmic_arb_ver_ops pmic_arb_v3 = {
.ver_str = "v3",
+ .init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v2,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
.offset = pmic_arb_offset_v2,
@@ -1400,6 +1514,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v3 = {
static const struct pmic_arb_ver_ops pmic_arb_v5 = {
.ver_str = "v5",
+ .init_apid = pmic_arb_init_apid_v5,
.ppid_to_apid = pmic_arb_ppid_to_apid_v5,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
.offset = pmic_arb_offset_v5,
@@ -1414,6 +1529,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v5 = {
static const struct pmic_arb_ver_ops pmic_arb_v7 = {
.ver_str = "v7",
+ .init_apid = pmic_arb_init_apid_v7,
.ppid_to_apid = pmic_arb_ppid_to_apid_v5,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
.offset = pmic_arb_offset_v7,
@@ -1439,7 +1555,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
struct spmi_controller *ctrl;
struct resource *res;
void __iomem *core;
- u32 *mapping_table;
u32 channel, ee, hw_ver;
int err;
@@ -1467,12 +1582,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
pmic_arb->core_size = resource_size(res);
- pmic_arb->ppid_to_apid = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PPID,
- sizeof(*pmic_arb->ppid_to_apid),
- GFP_KERNEL);
- if (!pmic_arb->ppid_to_apid)
- return -ENOMEM;
-
hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
if (hw_ver < PMIC_ARB_VERSION_V2_MIN) {
@@ -1506,58 +1615,17 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
return PTR_ERR(pmic_arb->wr_base);
}
- pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
+ dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
+ pmic_arb->ver_ops->ver_str, hw_ver);
- if (hw_ver >= PMIC_ARB_VERSION_V7_MIN) {
+ if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
+ pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
+ else
pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
- /* Optional property for v7: */
- of_property_read_u32(pdev->dev.of_node, "qcom,bus-id",
- &pmic_arb->bus_instance);
- if (pmic_arb->bus_instance > 1) {
- dev_err(&pdev->dev, "invalid bus instance (%u) specified\n",
- pmic_arb->bus_instance);
- return -EINVAL;
- }
-
- if (pmic_arb->bus_instance == 0) {
- pmic_arb->base_apid = 0;
- pmic_arb->apid_count =
- readl_relaxed(core + PMIC_ARB_FEATURES) &
- PMIC_ARB_FEATURES_PERIPH_MASK;
- } else {
- pmic_arb->base_apid =
- readl_relaxed(core + PMIC_ARB_FEATURES) &
- PMIC_ARB_FEATURES_PERIPH_MASK;
- pmic_arb->apid_count =
- readl_relaxed(core + PMIC_ARB_FEATURES1) &
- PMIC_ARB_FEATURES_PERIPH_MASK;
- }
- if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
- dev_err(&pdev->dev, "Unsupported APID count %d detected\n",
- pmic_arb->base_apid + pmic_arb->apid_count);
- return -EINVAL;
- }
- } else if (hw_ver >= PMIC_ARB_VERSION_V5_MIN) {
- pmic_arb->base_apid = 0;
- pmic_arb->apid_count = readl_relaxed(core + PMIC_ARB_FEATURES) &
- PMIC_ARB_FEATURES_PERIPH_MASK;
-
- if (pmic_arb->apid_count > pmic_arb->max_periphs) {
- dev_err(&pdev->dev, "Unsupported APID count %d detected\n",
- pmic_arb->apid_count);
- return -EINVAL;
- }
- }
-
- pmic_arb->apid_data = devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs,
- sizeof(*pmic_arb->apid_data),
- GFP_KERNEL);
- if (!pmic_arb->apid_data)
- return -ENOMEM;
-
- dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
- pmic_arb->ver_ops->ver_str, hw_ver);
+ err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
+ if (err)
+ return err;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr");
pmic_arb->intr = devm_ioremap_resource(&ctrl->dev, res);
@@ -1599,16 +1667,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
}
pmic_arb->ee = ee;
- mapping_table = devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs,
- sizeof(*mapping_table), GFP_KERNEL);
- if (!mapping_table)
- return -ENOMEM;
-
- pmic_arb->mapping_table = mapping_table;
- /* Initialize max_apid/min_apid to the opposite bounds, during
- * the irq domain translation, we are sure to update these */
- pmic_arb->max_apid = 0;
- pmic_arb->min_apid = pmic_arb->max_periphs - 1;
platform_set_drvdata(pdev, ctrl);
raw_spin_lock_init(&pmic_arb->lock);
@@ -1617,15 +1675,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
ctrl->read_cmd = pmic_arb_read_cmd;
ctrl->write_cmd = pmic_arb_write_cmd;
- if (hw_ver >= PMIC_ARB_VERSION_V5_MIN) {
- err = pmic_arb_read_apid_map_v5(pmic_arb);
- if (err) {
- dev_err(&pdev->dev, "could not read APID->PPID mapping table, rc= %d\n",
- err);
- return err;
- }
- }
-
dev_dbg(&pdev->dev, "adding irq domain\n");
pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node,
&pmic_arb_irq_domain_ops, pmic_arb);
--
2.34.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH RESEND v6 4/5] spmi: pmic-arb: Make core resources acquiring a version operation
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-26 16:28 ` Abel Vesa
-1 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
Rather than setting up the core, obsrv and chnls in probe by using
version specific conditionals, add a dedicated "get_core_resources"
version specific op and move the acquiring in there.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
drivers/spmi/spmi-pmic-arb.c | 113 +++++++++++++++++++++++++++----------------
1 file changed, 70 insertions(+), 43 deletions(-)
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 38fed8a585fe..188252bfb95f 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -203,6 +203,7 @@ struct spmi_pmic_arb {
*/
struct pmic_arb_ver_ops {
const char *ver_str;
+ int (*get_core_resources)(struct platform_device *pdev, void __iomem *core);
int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
/* spmi commands (read_cmd, write_cmd, cmd) functionality */
@@ -956,6 +957,19 @@ static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
return 0;
}
+static int pmic_arb_get_core_resources_v1(struct platform_device *pdev,
+ void __iomem *core)
+{
+ struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
+
+ pmic_arb->wr_base = core;
+ pmic_arb->rd_base = core;
+
+ pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
+
+ return 0;
+}
+
static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
{
u32 *mapping_table;
@@ -1063,6 +1077,33 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
return apid;
}
+static int pmic_arb_get_obsrvr_chnls_v2(struct platform_device *pdev)
+{
+ struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
+
+ pmic_arb->rd_base = devm_platform_ioremap_resource_byname(pdev, "obsrvr");
+ if (IS_ERR(pmic_arb->rd_base))
+ return PTR_ERR(pmic_arb->rd_base);
+
+ pmic_arb->wr_base = devm_platform_ioremap_resource_byname(pdev, "chnls");
+ if (IS_ERR(pmic_arb->wr_base))
+ return PTR_ERR(pmic_arb->wr_base);
+
+ return 0;
+}
+
+static int pmic_arb_get_core_resources_v2(struct platform_device *pdev,
+ void __iomem *core)
+{
+ struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
+
+ pmic_arb->core = core;
+
+ pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
+
+ return pmic_arb_get_obsrvr_chnls_v2(pdev);
+}
+
static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u16 ppid)
{
u16 apid_valid;
@@ -1246,6 +1287,18 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
return offset;
}
+static int pmic_arb_get_core_resources_v7(struct platform_device *pdev,
+ void __iomem *core)
+{
+ struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
+
+ pmic_arb->core = core;
+
+ pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
+
+ return pmic_arb_get_obsrvr_chnls_v2(pdev);
+}
+
/*
* Only v7 supports 2 buses. Each bus will get a different apid count, read
* from different registers.
@@ -1469,6 +1522,7 @@ pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
static const struct pmic_arb_ver_ops pmic_arb_v1 = {
.ver_str = "v1",
+ .get_core_resources = pmic_arb_get_core_resources_v1,
.init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v1,
.non_data_cmd = pmic_arb_non_data_cmd_v1,
@@ -1484,6 +1538,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v1 = {
static const struct pmic_arb_ver_ops pmic_arb_v2 = {
.ver_str = "v2",
+ .get_core_resources = pmic_arb_get_core_resources_v2,
.init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v2,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
@@ -1499,6 +1554,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v2 = {
static const struct pmic_arb_ver_ops pmic_arb_v3 = {
.ver_str = "v3",
+ .get_core_resources = pmic_arb_get_core_resources_v2,
.init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v2,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
@@ -1514,6 +1570,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v3 = {
static const struct pmic_arb_ver_ops pmic_arb_v5 = {
.ver_str = "v5",
+ .get_core_resources = pmic_arb_get_core_resources_v2,
.init_apid = pmic_arb_init_apid_v5,
.ppid_to_apid = pmic_arb_ppid_to_apid_v5,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
@@ -1529,6 +1586,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v5 = {
static const struct pmic_arb_ver_ops pmic_arb_v7 = {
.ver_str = "v7",
+ .get_core_resources = pmic_arb_get_core_resources_v7,
.init_apid = pmic_arb_init_apid_v7,
.ppid_to_apid = pmic_arb_ppid_to_apid_v5,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
@@ -1565,16 +1623,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
pmic_arb = spmi_controller_get_drvdata(ctrl);
pmic_arb->spmic = ctrl;
- /*
- * Please don't replace this with devm_platform_ioremap_resource() or
- * devm_ioremap_resource(). These both result in a call to
- * devm_request_mem_region() which prevents multiple mappings of this
- * register address range. SoCs with PMIC arbiter v7 may define two
- * arbiter devices, for the two physical SPMI interfaces, which share
- * some register address ranges (i.e. "core", "obsrvr", and "chnls").
- * Ensure that both devices probe successfully by calling devm_ioremap()
- * which does not result in a devm_request_mem_region() call.
- */
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
core = devm_ioremap(&ctrl->dev, res->start, resource_size(res));
if (IS_ERR(core))
@@ -1584,44 +1632,23 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
- if (hw_ver < PMIC_ARB_VERSION_V2_MIN) {
+ if (hw_ver < PMIC_ARB_VERSION_V2_MIN)
pmic_arb->ver_ops = &pmic_arb_v1;
- pmic_arb->wr_base = core;
- pmic_arb->rd_base = core;
- } else {
- pmic_arb->core = core;
-
- if (hw_ver < PMIC_ARB_VERSION_V3_MIN)
- pmic_arb->ver_ops = &pmic_arb_v2;
- else if (hw_ver < PMIC_ARB_VERSION_V5_MIN)
- pmic_arb->ver_ops = &pmic_arb_v3;
- else if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
- pmic_arb->ver_ops = &pmic_arb_v5;
- else
- pmic_arb->ver_ops = &pmic_arb_v7;
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
- "obsrvr");
- pmic_arb->rd_base = devm_ioremap(&ctrl->dev, res->start,
- resource_size(res));
- if (IS_ERR(pmic_arb->rd_base))
- return PTR_ERR(pmic_arb->rd_base);
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
- "chnls");
- pmic_arb->wr_base = devm_ioremap(&ctrl->dev, res->start,
- resource_size(res));
- if (IS_ERR(pmic_arb->wr_base))
- return PTR_ERR(pmic_arb->wr_base);
- }
+ else if (hw_ver < PMIC_ARB_VERSION_V3_MIN)
+ pmic_arb->ver_ops = &pmic_arb_v2;
+ else if (hw_ver < PMIC_ARB_VERSION_V5_MIN)
+ pmic_arb->ver_ops = &pmic_arb_v3;
+ else if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
+ pmic_arb->ver_ops = &pmic_arb_v5;
+ else
+ pmic_arb->ver_ops = &pmic_arb_v7;
dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
pmic_arb->ver_ops->ver_str, hw_ver);
- if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
- pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
- else
- pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
+ err = pmic_arb->ver_ops->get_core_resources(pdev, core);
+ if (err)
+ return err;
err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
if (err)
--
2.34.1
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH RESEND v6 4/5] spmi: pmic-arb: Make core resources acquiring a version operation
@ 2024-03-26 16:28 ` Abel Vesa
0 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
Rather than setting up the core, obsrv and chnls in probe by using
version specific conditionals, add a dedicated "get_core_resources"
version specific op and move the acquiring in there.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
drivers/spmi/spmi-pmic-arb.c | 113 +++++++++++++++++++++++++++----------------
1 file changed, 70 insertions(+), 43 deletions(-)
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 38fed8a585fe..188252bfb95f 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -203,6 +203,7 @@ struct spmi_pmic_arb {
*/
struct pmic_arb_ver_ops {
const char *ver_str;
+ int (*get_core_resources)(struct platform_device *pdev, void __iomem *core);
int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
/* spmi commands (read_cmd, write_cmd, cmd) functionality */
@@ -956,6 +957,19 @@ static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
return 0;
}
+static int pmic_arb_get_core_resources_v1(struct platform_device *pdev,
+ void __iomem *core)
+{
+ struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
+
+ pmic_arb->wr_base = core;
+ pmic_arb->rd_base = core;
+
+ pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
+
+ return 0;
+}
+
static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
{
u32 *mapping_table;
@@ -1063,6 +1077,33 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
return apid;
}
+static int pmic_arb_get_obsrvr_chnls_v2(struct platform_device *pdev)
+{
+ struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
+
+ pmic_arb->rd_base = devm_platform_ioremap_resource_byname(pdev, "obsrvr");
+ if (IS_ERR(pmic_arb->rd_base))
+ return PTR_ERR(pmic_arb->rd_base);
+
+ pmic_arb->wr_base = devm_platform_ioremap_resource_byname(pdev, "chnls");
+ if (IS_ERR(pmic_arb->wr_base))
+ return PTR_ERR(pmic_arb->wr_base);
+
+ return 0;
+}
+
+static int pmic_arb_get_core_resources_v2(struct platform_device *pdev,
+ void __iomem *core)
+{
+ struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
+
+ pmic_arb->core = core;
+
+ pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
+
+ return pmic_arb_get_obsrvr_chnls_v2(pdev);
+}
+
static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u16 ppid)
{
u16 apid_valid;
@@ -1246,6 +1287,18 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
return offset;
}
+static int pmic_arb_get_core_resources_v7(struct platform_device *pdev,
+ void __iomem *core)
+{
+ struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
+
+ pmic_arb->core = core;
+
+ pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
+
+ return pmic_arb_get_obsrvr_chnls_v2(pdev);
+}
+
/*
* Only v7 supports 2 buses. Each bus will get a different apid count, read
* from different registers.
@@ -1469,6 +1522,7 @@ pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
static const struct pmic_arb_ver_ops pmic_arb_v1 = {
.ver_str = "v1",
+ .get_core_resources = pmic_arb_get_core_resources_v1,
.init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v1,
.non_data_cmd = pmic_arb_non_data_cmd_v1,
@@ -1484,6 +1538,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v1 = {
static const struct pmic_arb_ver_ops pmic_arb_v2 = {
.ver_str = "v2",
+ .get_core_resources = pmic_arb_get_core_resources_v2,
.init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v2,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
@@ -1499,6 +1554,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v2 = {
static const struct pmic_arb_ver_ops pmic_arb_v3 = {
.ver_str = "v3",
+ .get_core_resources = pmic_arb_get_core_resources_v2,
.init_apid = pmic_arb_init_apid_v1,
.ppid_to_apid = pmic_arb_ppid_to_apid_v2,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
@@ -1514,6 +1570,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v3 = {
static const struct pmic_arb_ver_ops pmic_arb_v5 = {
.ver_str = "v5",
+ .get_core_resources = pmic_arb_get_core_resources_v2,
.init_apid = pmic_arb_init_apid_v5,
.ppid_to_apid = pmic_arb_ppid_to_apid_v5,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
@@ -1529,6 +1586,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v5 = {
static const struct pmic_arb_ver_ops pmic_arb_v7 = {
.ver_str = "v7",
+ .get_core_resources = pmic_arb_get_core_resources_v7,
.init_apid = pmic_arb_init_apid_v7,
.ppid_to_apid = pmic_arb_ppid_to_apid_v5,
.non_data_cmd = pmic_arb_non_data_cmd_v2,
@@ -1565,16 +1623,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
pmic_arb = spmi_controller_get_drvdata(ctrl);
pmic_arb->spmic = ctrl;
- /*
- * Please don't replace this with devm_platform_ioremap_resource() or
- * devm_ioremap_resource(). These both result in a call to
- * devm_request_mem_region() which prevents multiple mappings of this
- * register address range. SoCs with PMIC arbiter v7 may define two
- * arbiter devices, for the two physical SPMI interfaces, which share
- * some register address ranges (i.e. "core", "obsrvr", and "chnls").
- * Ensure that both devices probe successfully by calling devm_ioremap()
- * which does not result in a devm_request_mem_region() call.
- */
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
core = devm_ioremap(&ctrl->dev, res->start, resource_size(res));
if (IS_ERR(core))
@@ -1584,44 +1632,23 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
- if (hw_ver < PMIC_ARB_VERSION_V2_MIN) {
+ if (hw_ver < PMIC_ARB_VERSION_V2_MIN)
pmic_arb->ver_ops = &pmic_arb_v1;
- pmic_arb->wr_base = core;
- pmic_arb->rd_base = core;
- } else {
- pmic_arb->core = core;
-
- if (hw_ver < PMIC_ARB_VERSION_V3_MIN)
- pmic_arb->ver_ops = &pmic_arb_v2;
- else if (hw_ver < PMIC_ARB_VERSION_V5_MIN)
- pmic_arb->ver_ops = &pmic_arb_v3;
- else if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
- pmic_arb->ver_ops = &pmic_arb_v5;
- else
- pmic_arb->ver_ops = &pmic_arb_v7;
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
- "obsrvr");
- pmic_arb->rd_base = devm_ioremap(&ctrl->dev, res->start,
- resource_size(res));
- if (IS_ERR(pmic_arb->rd_base))
- return PTR_ERR(pmic_arb->rd_base);
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
- "chnls");
- pmic_arb->wr_base = devm_ioremap(&ctrl->dev, res->start,
- resource_size(res));
- if (IS_ERR(pmic_arb->wr_base))
- return PTR_ERR(pmic_arb->wr_base);
- }
+ else if (hw_ver < PMIC_ARB_VERSION_V3_MIN)
+ pmic_arb->ver_ops = &pmic_arb_v2;
+ else if (hw_ver < PMIC_ARB_VERSION_V5_MIN)
+ pmic_arb->ver_ops = &pmic_arb_v3;
+ else if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
+ pmic_arb->ver_ops = &pmic_arb_v5;
+ else
+ pmic_arb->ver_ops = &pmic_arb_v7;
dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
pmic_arb->ver_ops->ver_str, hw_ver);
- if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
- pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
- else
- pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
+ err = pmic_arb->ver_ops->get_core_resources(pdev, core);
+ if (err)
+ return err;
err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
if (err)
--
2.34.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH RESEND v6 5/5] spmi: pmic-arb: Add multi bus support
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-26 16:28 ` Abel Vesa
-1 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
Starting with HW version 7, there are actually two separate buses
(with two separate sets of wires). So in order to support both
buses, we need to register a separate spmi controller for each one.
Add a separate compatible for v7 only, but allow the legacy platforms
that have v7 to still work with the old one, for DT backwards
compatibility.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
drivers/spmi/spmi-pmic-arb.c | 726 +++++++++++++++++++++++++------------------
1 file changed, 429 insertions(+), 297 deletions(-)
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 188252bfb95f..ca0f42952445 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -13,6 +13,8 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/spmi.h>
@@ -94,6 +96,8 @@ enum pmic_arb_channel {
PMIC_ARB_CHANNEL_OBS,
};
+#define PMIC_ARB_MAX_BUSES 2
+
/* Maximum number of support PMIC peripherals */
#define PMIC_ARB_MAX_PERIPHS 512
#define PMIC_ARB_MAX_PERIPHS_V7 1024
@@ -125,58 +129,68 @@ struct apid_data {
u8 irq_ee;
};
+struct spmi_pmic_arb;
+
/**
- * struct spmi_pmic_arb - SPMI PMIC Arbiter object
+ * struct spmi_pmic_arb_bus - SPMI PMIC Arbiter Bus object
*
- * @rd_base: on v1 "core", on v2 "observer" register base off DT.
- * @wr_base: on v1 "core", on v2 "chnls" register base off DT.
* @intr: address of the SPMI interrupt control registers.
* @cnfg: address of the PMIC Arbiter configuration registers.
- * @lock: lock to synchronize accesses.
- * @channel: execution environment channel to use for accesses.
- * @irq: PMIC ARB interrupt.
- * @ee: the current Execution Environment
- * @bus_instance: on v7: 0 = primary SPMI bus, 1 = secondary SPMI bus
- * @min_apid: minimum APID (used for bounding IRQ search)
- * @max_apid: maximum APID
+ * @domain: irq domain object for PMIC IRQ domain
* @base_apid: on v7: minimum APID associated with the particular SPMI
* bus instance
* @apid_count: on v5 and v7: number of APIDs associated with the
* particular SPMI bus instance
* @mapping_table: in-memory copy of PPID -> APID mapping table.
- * @domain: irq domain object for PMIC IRQ domain
- * @spmic: SPMI controller object
- * @ver_ops: version dependent operations.
* @ppid_to_apid: in-memory copy of PPID -> APID mapping table.
- * @last_apid: Highest value APID in use
* @apid_data: Table of data for all APIDs
+ * @last_apid: Highest value APID in use
+ * @irq: PMIC ARB interrupt.
+ */
+struct spmi_pmic_arb_bus {
+ struct spmi_pmic_arb *pmic_arb;
+ struct irq_domain *domain;
+ void __iomem *intr;
+ void __iomem *cnfg;
+ struct spmi_controller *spmic;
+ u16 base_apid;
+ int apid_count;
+ u32 *mapping_table;
+ DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS);
+ u16 *ppid_to_apid;
+ u16 last_apid;
+ struct apid_data *apid_data;
+ u16 min_apid;
+ u16 max_apid;
+ int irq;
+ u8 id;
+};
+
+/**
+ * struct spmi_pmic_arb - SPMI PMIC Arbiter object
+ *
+ * @rd_base: on v1 "core", on v2 "observer" register base off DT.
+ * @wr_base: on v1 "core", on v2 "chnls" register base off DT.
+ * @lock: lock to synchronize accesses.
+ * @channel: execution environment channel to use for accesses.
+ * @ee: the current Execution Environment
+ * @min_apid: minimum APID (used for bounding IRQ search)
+ * @max_apid: maximum APID
+ * @ver_ops: version dependent operations.
* @max_periphs: Number of elements in apid_data[]
*/
struct spmi_pmic_arb {
void __iomem *rd_base;
void __iomem *wr_base;
- void __iomem *intr;
- void __iomem *cnfg;
void __iomem *core;
resource_size_t core_size;
raw_spinlock_t lock;
u8 channel;
- int irq;
u8 ee;
- u32 bus_instance;
- u16 min_apid;
- u16 max_apid;
- u16 base_apid;
- int apid_count;
- u32 *mapping_table;
- DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS);
- struct irq_domain *domain;
- struct spmi_controller *spmic;
const struct pmic_arb_ver_ops *ver_ops;
- u16 *ppid_to_apid;
- u16 last_apid;
- struct apid_data *apid_data;
int max_periphs;
+ struct spmi_pmic_arb_bus buses[PMIC_ARB_MAX_BUSES];
+ int buses_available;
};
/**
@@ -204,21 +218,21 @@ struct spmi_pmic_arb {
struct pmic_arb_ver_ops {
const char *ver_str;
int (*get_core_resources)(struct platform_device *pdev, void __iomem *core);
- int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
- int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
+ int (*init_apid)(struct spmi_pmic_arb_bus *bus, int index);
+ int (*ppid_to_apid)(struct spmi_pmic_arb_bus *bus, u16 ppid);
/* spmi commands (read_cmd, write_cmd, cmd) functionality */
- int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
- enum pmic_arb_channel ch_type);
+ int (*offset)(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
+ enum pmic_arb_channel ch_type);
u32 (*fmt_cmd)(u8 opc, u8 sid, u16 addr, u8 bc);
int (*non_data_cmd)(struct spmi_controller *ctrl, u8 opc, u8 sid);
/* Interrupts controller functionality (offset of PIC registers) */
- void __iomem *(*owner_acc_status)(struct spmi_pmic_arb *pmic_arb, u8 m,
+ void __iomem *(*owner_acc_status)(struct spmi_pmic_arb_bus *bus, u8 m,
u16 n);
- void __iomem *(*acc_enable)(struct spmi_pmic_arb *pmic_arb, u16 n);
- void __iomem *(*irq_status)(struct spmi_pmic_arb *pmic_arb, u16 n);
- void __iomem *(*irq_clear)(struct spmi_pmic_arb *pmic_arb, u16 n);
+ void __iomem *(*acc_enable)(struct spmi_pmic_arb_bus *bus, u16 n);
+ void __iomem *(*irq_status)(struct spmi_pmic_arb_bus *bus, u16 n);
+ void __iomem *(*irq_clear)(struct spmi_pmic_arb_bus *bus, u16 n);
u32 (*apid_map_offset)(u16 n);
- void __iomem *(*apid_owner)(struct spmi_pmic_arb *pmic_arb, u16 n);
+ void __iomem *(*apid_owner)(struct spmi_pmic_arb_bus *bus, u16 n);
};
static inline void pmic_arb_base_write(struct spmi_pmic_arb *pmic_arb,
@@ -266,13 +280,14 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
void __iomem *base, u8 sid, u16 addr,
enum pmic_arb_channel ch_type)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u32 status = 0;
u32 timeout = PMIC_ARB_TIMEOUT_US;
u32 offset;
int rc;
- rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, ch_type);
+ rc = pmic_arb->ver_ops->offset(bus, sid, addr, ch_type);
if (rc < 0)
return rc;
@@ -284,21 +299,21 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
if (status & PMIC_ARB_STATUS_DONE) {
if (status & PMIC_ARB_STATUS_DENIED) {
- dev_err(&ctrl->dev, "%s: %#x %#x: transaction denied (%#x)\n",
- __func__, sid, addr, status);
+ dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction denied (%#x)\n",
+ __func__, bus->id, sid, addr, status);
return -EPERM;
}
if (status & PMIC_ARB_STATUS_FAILURE) {
- dev_err(&ctrl->dev, "%s: %#x %#x: transaction failed (%#x)\n",
- __func__, sid, addr, status);
+ dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction failed (%#x) reg: 0x%x\n",
+ __func__, bus->id, sid, addr, status, offset);
WARN_ON(1);
return -EIO;
}
if (status & PMIC_ARB_STATUS_DROPPED) {
- dev_err(&ctrl->dev, "%s: %#x %#x: transaction dropped (%#x)\n",
- __func__, sid, addr, status);
+ dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction dropped (%#x)\n",
+ __func__, bus->id, sid, addr, status);
return -EIO;
}
@@ -307,8 +322,8 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
udelay(1);
}
- dev_err(&ctrl->dev, "%s: %#x %#x: timeout, status %#x\n",
- __func__, sid, addr, status);
+ dev_err(&ctrl->dev, "%s: %#x %#x %#x: timeout, status %#x\n",
+ __func__, bus->id, sid, addr, status);
return -ETIMEDOUT;
}
@@ -316,12 +331,13 @@ static int
pmic_arb_non_data_cmd_v1(struct spmi_controller *ctrl, u8 opc, u8 sid)
{
struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[0];
unsigned long flags;
u32 cmd;
int rc;
u32 offset;
- rc = pmic_arb->ver_ops->offset(pmic_arb, sid, 0, PMIC_ARB_CHANNEL_RW);
+ rc = pmic_arb->ver_ops->offset(bus, sid, 0, PMIC_ARB_CHANNEL_RW);
if (rc < 0)
return rc;
@@ -357,20 +373,21 @@ static int pmic_arb_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid)
return pmic_arb->ver_ops->non_data_cmd(ctrl, opc, sid);
}
-static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc, u8 sid,
+static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb_bus *bus, u8 opc, u8 sid,
u16 addr, size_t len, u32 *cmd, u32 *offset)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u8 bc = len - 1;
int rc;
- rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr,
+ rc = pmic_arb->ver_ops->offset(bus, sid, addr,
PMIC_ARB_CHANNEL_OBS);
if (rc < 0)
return rc;
*offset = rc;
if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
- dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
+ dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
PMIC_ARB_MAX_TRANS_BYTES, len);
return -EINVAL;
}
@@ -394,7 +411,8 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
u32 offset, u8 sid, u16 addr, u8 *buf,
size_t len)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u8 bc = len - 1;
int rc;
@@ -416,12 +434,13 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
u16 addr, u8 *buf, size_t len)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
unsigned long flags;
u32 cmd, offset;
int rc;
- rc = pmic_arb_fmt_read_cmd(pmic_arb, opc, sid, addr, len, &cmd,
+ rc = pmic_arb_fmt_read_cmd(bus, opc, sid, addr, len, &cmd,
&offset);
if (rc)
return rc;
@@ -433,21 +452,22 @@ static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
return rc;
}
-static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc,
+static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb_bus *bus, u8 opc,
u8 sid, u16 addr, size_t len, u32 *cmd,
u32 *offset)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u8 bc = len - 1;
int rc;
- rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr,
+ rc = pmic_arb->ver_ops->offset(bus, sid, addr,
PMIC_ARB_CHANNEL_RW);
if (rc < 0)
return rc;
*offset = rc;
if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
- dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
+ dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
PMIC_ARB_MAX_TRANS_BYTES, len);
return -EINVAL;
}
@@ -473,7 +493,8 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
u32 offset, u8 sid, u16 addr,
const u8 *buf, size_t len)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u8 bc = len - 1;
/* Write data to FIFOs */
@@ -492,12 +513,13 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
u16 addr, const u8 *buf, size_t len)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
unsigned long flags;
u32 cmd, offset;
int rc;
- rc = pmic_arb_fmt_write_cmd(pmic_arb, opc, sid, addr, len, &cmd,
+ rc = pmic_arb_fmt_write_cmd(bus, opc, sid, addr, len, &cmd,
&offset);
if (rc)
return rc;
@@ -513,18 +535,19 @@ static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
static int pmic_arb_masked_write(struct spmi_controller *ctrl, u8 sid, u16 addr,
const u8 *buf, const u8 *mask, size_t len)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u32 read_cmd, read_offset, write_cmd, write_offset;
u8 temp[PMIC_ARB_MAX_TRANS_BYTES];
unsigned long flags;
int rc, i;
- rc = pmic_arb_fmt_read_cmd(pmic_arb, SPMI_CMD_EXT_READL, sid, addr, len,
+ rc = pmic_arb_fmt_read_cmd(bus, SPMI_CMD_EXT_READL, sid, addr, len,
&read_cmd, &read_offset);
if (rc)
return rc;
- rc = pmic_arb_fmt_write_cmd(pmic_arb, SPMI_CMD_EXT_WRITEL, sid, addr,
+ rc = pmic_arb_fmt_write_cmd(bus, SPMI_CMD_EXT_WRITEL, sid, addr,
len, &write_cmd, &write_offset);
if (rc)
return rc;
@@ -567,25 +590,25 @@ struct spmi_pmic_arb_qpnpint_type {
static void qpnpint_spmi_write(struct irq_data *d, u8 reg, void *buf,
size_t len)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
u8 sid = hwirq_to_sid(d->hwirq);
u8 per = hwirq_to_per(d->hwirq);
- if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid,
+ if (pmic_arb_write_cmd(bus->spmic, SPMI_CMD_EXT_WRITEL, sid,
(per << 8) + reg, buf, len))
- dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n",
+ dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\n",
d->irq);
}
static void qpnpint_spmi_read(struct irq_data *d, u8 reg, void *buf, size_t len)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
u8 sid = hwirq_to_sid(d->hwirq);
u8 per = hwirq_to_per(d->hwirq);
- if (pmic_arb_read_cmd(pmic_arb->spmic, SPMI_CMD_EXT_READL, sid,
+ if (pmic_arb_read_cmd(bus->spmic, SPMI_CMD_EXT_READL, sid,
(per << 8) + reg, buf, len))
- dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n",
+ dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\n",
d->irq);
}
@@ -593,47 +616,49 @@ static int qpnpint_spmi_masked_write(struct irq_data *d, u8 reg,
const void *buf, const void *mask,
size_t len)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
u8 sid = hwirq_to_sid(d->hwirq);
u8 per = hwirq_to_per(d->hwirq);
int rc;
- rc = pmic_arb_masked_write(pmic_arb->spmic, sid, (per << 8) + reg, buf,
+ rc = pmic_arb_masked_write(bus->spmic, sid, (per << 8) + reg, buf,
mask, len);
if (rc)
- dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x rc=%d\n",
+ dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x rc=%d\n",
d->irq, rc);
return rc;
}
-static void cleanup_irq(struct spmi_pmic_arb *pmic_arb, u16 apid, int id)
+static void cleanup_irq(struct spmi_pmic_arb_bus *bus, u16 apid, int id)
{
- u16 ppid = pmic_arb->apid_data[apid].ppid;
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
+ u16 ppid = bus->apid_data[apid].ppid;
u8 sid = ppid >> 8;
u8 per = ppid & 0xFF;
u8 irq_mask = BIT(id);
- dev_err_ratelimited(&pmic_arb->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n",
- __func__, apid, sid, per, id);
- writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(pmic_arb, apid));
+ dev_err_ratelimited(&bus->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n",
+ __func__, apid, sid, per, id);
+ writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(bus, apid));
}
-static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid)
+static int periph_interrupt(struct spmi_pmic_arb_bus *bus, u16 apid)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
unsigned int irq;
u32 status, id;
int handled = 0;
- u8 sid = (pmic_arb->apid_data[apid].ppid >> 8) & 0xF;
- u8 per = pmic_arb->apid_data[apid].ppid & 0xFF;
+ u8 sid = (bus->apid_data[apid].ppid >> 8) & 0xF;
+ u8 per = bus->apid_data[apid].ppid & 0xFF;
- status = readl_relaxed(pmic_arb->ver_ops->irq_status(pmic_arb, apid));
+ status = readl_relaxed(pmic_arb->ver_ops->irq_status(bus, apid));
while (status) {
id = ffs(status) - 1;
status &= ~BIT(id);
- irq = irq_find_mapping(pmic_arb->domain,
- spec_to_hwirq(sid, per, id, apid));
+ irq = irq_find_mapping(bus->domain,
+ spec_to_hwirq(sid, per, id, apid));
if (irq == 0) {
- cleanup_irq(pmic_arb, apid, id);
+ cleanup_irq(bus, apid, id);
continue;
}
generic_handle_irq(irq);
@@ -645,16 +670,17 @@ static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid)
static void pmic_arb_chained_irq(struct irq_desc *desc)
{
- struct spmi_pmic_arb *pmic_arb = irq_desc_get_handler_data(desc);
+ struct spmi_pmic_arb_bus *bus = irq_desc_get_handler_data(desc);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
struct irq_chip *chip = irq_desc_get_chip(desc);
- int first = pmic_arb->min_apid;
- int last = pmic_arb->max_apid;
+ int first = bus->min_apid;
+ int last = bus->max_apid;
/*
* acc_offset will be non-zero for the secondary SPMI bus instance on
* v7 controllers.
*/
- int acc_offset = pmic_arb->base_apid >> 5;
+ int acc_offset = bus->base_apid >> 5;
u8 ee = pmic_arb->ee;
u32 status, enable, handled = 0;
int i, id, apid;
@@ -665,7 +691,7 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
chained_irq_enter(chip, desc);
for (i = first >> 5; i <= last >> 5; ++i) {
- status = readl_relaxed(ver_ops->owner_acc_status(pmic_arb, ee, i - acc_offset));
+ status = readl_relaxed(ver_ops->owner_acc_status(bus, ee, i - acc_offset));
if (status)
acc_valid = true;
@@ -679,9 +705,9 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
continue;
}
enable = readl_relaxed(
- ver_ops->acc_enable(pmic_arb, apid));
+ ver_ops->acc_enable(bus, apid));
if (enable & SPMI_PIC_ACC_ENABLE_BIT)
- if (periph_interrupt(pmic_arb, apid) != 0)
+ if (periph_interrupt(bus, apid) != 0)
handled++;
}
}
@@ -690,19 +716,19 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
if (!acc_valid) {
for (i = first; i <= last; i++) {
/* skip if APPS is not irq owner */
- if (pmic_arb->apid_data[i].irq_ee != pmic_arb->ee)
+ if (bus->apid_data[i].irq_ee != pmic_arb->ee)
continue;
irq_status = readl_relaxed(
- ver_ops->irq_status(pmic_arb, i));
+ ver_ops->irq_status(bus, i));
if (irq_status) {
enable = readl_relaxed(
- ver_ops->acc_enable(pmic_arb, i));
+ ver_ops->acc_enable(bus, i));
if (enable & SPMI_PIC_ACC_ENABLE_BIT) {
- dev_dbg(&pmic_arb->spmic->dev,
+ dev_dbg(&bus->spmic->dev,
"Dispatching IRQ for apid=%d status=%x\n",
i, irq_status);
- if (periph_interrupt(pmic_arb, i) != 0)
+ if (periph_interrupt(bus, i) != 0)
handled++;
}
}
@@ -717,12 +743,13 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
static void qpnpint_irq_ack(struct irq_data *d)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u8 irq = hwirq_to_irq(d->hwirq);
u16 apid = hwirq_to_apid(d->hwirq);
u8 data;
- writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(pmic_arb, apid));
+ writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(bus, apid));
data = BIT(irq);
qpnpint_spmi_write(d, QPNPINT_REG_LATCHED_CLR, &data, 1);
@@ -738,14 +765,15 @@ static void qpnpint_irq_mask(struct irq_data *d)
static void qpnpint_irq_unmask(struct irq_data *d)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
u8 irq = hwirq_to_irq(d->hwirq);
u16 apid = hwirq_to_apid(d->hwirq);
u8 buf[2];
writel_relaxed(SPMI_PIC_ACC_ENABLE_BIT,
- ver_ops->acc_enable(pmic_arb, apid));
+ ver_ops->acc_enable(bus, apid));
qpnpint_spmi_read(d, QPNPINT_REG_EN_SET, &buf[0], 1);
if (!(buf[0] & BIT(irq))) {
@@ -802,9 +830,9 @@ static int qpnpint_irq_set_type(struct irq_data *d, unsigned int flow_type)
static int qpnpint_irq_set_wake(struct irq_data *d, unsigned int on)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
- return irq_set_irq_wake(pmic_arb->irq, on);
+ return irq_set_irq_wake(bus->irq, on);
}
static int qpnpint_get_irqchip_state(struct irq_data *d,
@@ -826,17 +854,18 @@ static int qpnpint_get_irqchip_state(struct irq_data *d,
static int qpnpint_irq_domain_activate(struct irq_domain *domain,
struct irq_data *d, bool reserve)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u16 periph = hwirq_to_per(d->hwirq);
u16 apid = hwirq_to_apid(d->hwirq);
u16 sid = hwirq_to_sid(d->hwirq);
u16 irq = hwirq_to_irq(d->hwirq);
u8 buf;
- if (pmic_arb->apid_data[apid].irq_ee != pmic_arb->ee) {
- dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n",
+ if (bus->apid_data[apid].irq_ee != pmic_arb->ee) {
+ dev_err(&bus->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n",
sid, periph, irq, pmic_arb->ee,
- pmic_arb->apid_data[apid].irq_ee);
+ bus->apid_data[apid].irq_ee);
return -ENODEV;
}
@@ -863,15 +892,16 @@ static int qpnpint_irq_domain_translate(struct irq_domain *d,
unsigned long *out_hwirq,
unsigned int *out_type)
{
- struct spmi_pmic_arb *pmic_arb = d->host_data;
+ struct spmi_pmic_arb_bus *bus = d->host_data;
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u32 *intspec = fwspec->param;
u16 apid, ppid;
int rc;
- dev_dbg(&pmic_arb->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
+ dev_dbg(&bus->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
intspec[0], intspec[1], intspec[2]);
- if (irq_domain_get_of_node(d) != pmic_arb->spmic->dev.of_node)
+ if (irq_domain_get_of_node(d) != bus->spmic->dev.of_node)
return -EINVAL;
if (fwspec->param_count != 4)
return -EINVAL;
@@ -879,37 +909,38 @@ static int qpnpint_irq_domain_translate(struct irq_domain *d,
return -EINVAL;
ppid = intspec[0] << 8 | intspec[1];
- rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid);
+ rc = pmic_arb->ver_ops->ppid_to_apid(bus, ppid);
if (rc < 0) {
- dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u rc = %d\n",
- intspec[0], intspec[1], intspec[2], rc);
+ dev_err(&bus->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u rc = %d\n",
+ intspec[0], intspec[1], intspec[2], rc);
return rc;
}
apid = rc;
/* Keep track of {max,min}_apid for bounding search during interrupt */
- if (apid > pmic_arb->max_apid)
- pmic_arb->max_apid = apid;
- if (apid < pmic_arb->min_apid)
- pmic_arb->min_apid = apid;
+ if (apid > bus->max_apid)
+ bus->max_apid = apid;
+ if (apid < bus->min_apid)
+ bus->min_apid = apid;
*out_hwirq = spec_to_hwirq(intspec[0], intspec[1], intspec[2], apid);
*out_type = intspec[3] & IRQ_TYPE_SENSE_MASK;
- dev_dbg(&pmic_arb->spmic->dev, "out_hwirq = %lu\n", *out_hwirq);
+ dev_dbg(&bus->spmic->dev, "out_hwirq = %lu\n", *out_hwirq);
return 0;
}
static struct lock_class_key qpnpint_irq_lock_class, qpnpint_irq_request_class;
-static void qpnpint_irq_domain_map(struct spmi_pmic_arb *pmic_arb,
+static void qpnpint_irq_domain_map(struct spmi_pmic_arb_bus *bus,
struct irq_domain *domain, unsigned int virq,
irq_hw_number_t hwirq, unsigned int type)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
irq_flow_handler_t handler;
- dev_dbg(&pmic_arb->spmic->dev, "virq = %u, hwirq = %lu, type = %u\n",
+ dev_dbg(&bus->spmic->dev, "virq = %u, hwirq = %lu, type = %u\n",
virq, hwirq, type);
if (type & IRQ_TYPE_EDGE_BOTH)
@@ -928,7 +959,7 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
unsigned int virq, unsigned int nr_irqs,
void *data)
{
- struct spmi_pmic_arb *pmic_arb = domain->host_data;
+ struct spmi_pmic_arb_bus *bus = domain->host_data;
struct irq_fwspec *fwspec = data;
irq_hw_number_t hwirq;
unsigned int type;
@@ -939,20 +970,22 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
return ret;
for (i = 0; i < nr_irqs; i++)
- qpnpint_irq_domain_map(pmic_arb, domain, virq + i, hwirq + i,
+ qpnpint_irq_domain_map(bus, domain, virq + i, hwirq + i,
type);
return 0;
}
-static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
+static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb_bus *bus)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
+
/*
* Initialize max_apid/min_apid to the opposite bounds, during
* the irq domain translation, we are sure to update these
*/
- pmic_arb->max_apid = 0;
- pmic_arb->min_apid = pmic_arb->max_periphs - 1;
+ bus->max_apid = 0;
+ bus->min_apid = pmic_arb->max_periphs - 1;
return 0;
}
@@ -970,43 +1003,44 @@ static int pmic_arb_get_core_resources_v1(struct platform_device *pdev,
return 0;
}
-static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
+static int pmic_arb_init_apid_v1(struct spmi_pmic_arb_bus *bus, int index)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u32 *mapping_table;
if (index) {
- dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
+ dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
index);
return -EINVAL;
}
- mapping_table = devm_kcalloc(&pmic_arb->spmic->dev, pmic_arb->max_periphs,
+ mapping_table = devm_kcalloc(&bus->spmic->dev, pmic_arb->max_periphs,
sizeof(*mapping_table), GFP_KERNEL);
if (!mapping_table)
return -ENOMEM;
- pmic_arb->mapping_table = mapping_table;
+ bus->mapping_table = mapping_table;
- return pmic_arb_init_apid_min_max(pmic_arb);
+ return pmic_arb_init_apid_min_max(bus);
}
-static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
+static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb_bus *bus, u16 ppid)
{
- u32 *mapping_table = pmic_arb->mapping_table;
+ u32 *mapping_table = bus->mapping_table;
int index = 0, i;
u16 apid_valid;
u16 apid;
u32 data;
- apid_valid = pmic_arb->ppid_to_apid[ppid];
+ apid_valid = bus->ppid_to_apid[ppid];
if (apid_valid & PMIC_ARB_APID_VALID) {
apid = apid_valid & ~PMIC_ARB_APID_VALID;
return apid;
}
for (i = 0; i < SPMI_MAPPING_TABLE_TREE_DEPTH; ++i) {
- if (!test_and_set_bit(index, pmic_arb->mapping_table_valid))
- mapping_table[index] = readl_relaxed(pmic_arb->cnfg +
+ if (!test_and_set_bit(index, bus->mapping_table_valid))
+ mapping_table[index] = readl_relaxed(bus->cnfg +
SPMI_MAPPING_TABLE_REG(index));
data = mapping_table[index];
@@ -1016,9 +1050,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
index = SPMI_MAPPING_BIT_IS_1_RESULT(data);
} else {
apid = SPMI_MAPPING_BIT_IS_1_RESULT(data);
- pmic_arb->ppid_to_apid[ppid]
+ bus->ppid_to_apid[ppid]
= apid | PMIC_ARB_APID_VALID;
- pmic_arb->apid_data[apid].ppid = ppid;
+ bus->apid_data[apid].ppid = ppid;
return apid;
}
} else {
@@ -1026,9 +1060,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
index = SPMI_MAPPING_BIT_IS_0_RESULT(data);
} else {
apid = SPMI_MAPPING_BIT_IS_0_RESULT(data);
- pmic_arb->ppid_to_apid[ppid]
+ bus->ppid_to_apid[ppid]
= apid | PMIC_ARB_APID_VALID;
- pmic_arb->apid_data[apid].ppid = ppid;
+ bus->apid_data[apid].ppid = ppid;
return apid;
}
}
@@ -1038,24 +1072,26 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
}
/* v1 offset per ee */
-static int pmic_arb_offset_v1(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
- enum pmic_arb_channel ch_type)
+static int pmic_arb_offset_v1(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
+ enum pmic_arb_channel ch_type)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return 0x800 + 0x80 * pmic_arb->channel;
}
-static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
+static u16 pmic_arb_find_apid(struct spmi_pmic_arb_bus *bus, u16 ppid)
{
- struct apid_data *apidd = &pmic_arb->apid_data[pmic_arb->last_apid];
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
+ struct apid_data *apidd = &bus->apid_data[bus->last_apid];
u32 regval, offset;
u16 id, apid;
- for (apid = pmic_arb->last_apid; ; apid++, apidd++) {
+ for (apid = bus->last_apid; ; apid++, apidd++) {
offset = pmic_arb->ver_ops->apid_map_offset(apid);
if (offset >= pmic_arb->core_size)
break;
- regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb,
+ regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(bus,
apid));
apidd->irq_ee = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
apidd->write_ee = apidd->irq_ee;
@@ -1065,14 +1101,14 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
continue;
id = (regval >> 8) & PMIC_ARB_PPID_MASK;
- pmic_arb->ppid_to_apid[id] = apid | PMIC_ARB_APID_VALID;
+ bus->ppid_to_apid[id] = apid | PMIC_ARB_APID_VALID;
apidd->ppid = id;
if (id == ppid) {
apid |= PMIC_ARB_APID_VALID;
break;
}
}
- pmic_arb->last_apid = apid & ~PMIC_ARB_APID_VALID;
+ bus->last_apid = apid & ~PMIC_ARB_APID_VALID;
return apid;
}
@@ -1104,21 +1140,22 @@ static int pmic_arb_get_core_resources_v2(struct platform_device *pdev,
return pmic_arb_get_obsrvr_chnls_v2(pdev);
}
-static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u16 ppid)
+static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb_bus *bus, u16 ppid)
{
u16 apid_valid;
- apid_valid = pmic_arb->ppid_to_apid[ppid];
+ apid_valid = bus->ppid_to_apid[ppid];
if (!(apid_valid & PMIC_ARB_APID_VALID))
- apid_valid = pmic_arb_find_apid(pmic_arb, ppid);
+ apid_valid = pmic_arb_find_apid(bus, ppid);
if (!(apid_valid & PMIC_ARB_APID_VALID))
return -ENODEV;
return apid_valid & ~PMIC_ARB_APID_VALID;
}
-static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
+static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb_bus *bus)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
struct apid_data *apidd;
struct apid_data *prev_apidd;
u16 i, apid, ppid, apid_max;
@@ -1140,9 +1177,9 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
* where N = number of APIDs supported by the primary bus and
* M = number of APIDs supported by the secondary bus
*/
- apidd = &pmic_arb->apid_data[pmic_arb->base_apid];
- apid_max = pmic_arb->base_apid + pmic_arb->apid_count;
- for (i = pmic_arb->base_apid; i < apid_max; i++, apidd++) {
+ apidd = &bus->apid_data[bus->base_apid];
+ apid_max = bus->base_apid + bus->apid_count;
+ for (i = bus->base_apid; i < apid_max; i++, apidd++) {
offset = pmic_arb->ver_ops->apid_map_offset(i);
if (offset >= pmic_arb->core_size)
break;
@@ -1153,19 +1190,18 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
ppid = (regval >> 8) & PMIC_ARB_PPID_MASK;
is_irq_ee = PMIC_ARB_CHAN_IS_IRQ_OWNER(regval);
- regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb,
- i));
+ regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(bus, i));
apidd->write_ee = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
apidd->irq_ee = is_irq_ee ? apidd->write_ee : INVALID_EE;
- valid = pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID;
- apid = pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
- prev_apidd = &pmic_arb->apid_data[apid];
+ valid = bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID;
+ apid = bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
+ prev_apidd = &bus->apid_data[apid];
if (!valid || apidd->write_ee == pmic_arb->ee) {
/* First PPID mapping or one for this EE */
- pmic_arb->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
+ bus->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
} else if (valid && is_irq_ee &&
prev_apidd->write_ee == pmic_arb->ee) {
/*
@@ -1176,42 +1212,43 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
}
apidd->ppid = ppid;
- pmic_arb->last_apid = i;
+ bus->last_apid = i;
}
/* Dump the mapping table for debug purposes. */
- dev_dbg(&pmic_arb->spmic->dev, "PPID APID Write-EE IRQ-EE\n");
+ dev_dbg(&bus->spmic->dev, "PPID APID Write-EE IRQ-EE\n");
for (ppid = 0; ppid < PMIC_ARB_MAX_PPID; ppid++) {
- apid = pmic_arb->ppid_to_apid[ppid];
+ apid = bus->ppid_to_apid[ppid];
if (apid & PMIC_ARB_APID_VALID) {
apid &= ~PMIC_ARB_APID_VALID;
- apidd = &pmic_arb->apid_data[apid];
- dev_dbg(&pmic_arb->spmic->dev, "%#03X %3u %2u %2u\n",
- ppid, apid, apidd->write_ee, apidd->irq_ee);
+ apidd = &bus->apid_data[apid];
+ dev_dbg(&bus->spmic->dev, "%#03X %3u %2u %2u\n",
+ ppid, apid, apidd->write_ee, apidd->irq_ee);
}
}
return 0;
}
-static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb *pmic_arb, u16 ppid)
+static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb_bus *bus, u16 ppid)
{
- if (!(pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID))
+ if (!(bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID))
return -ENODEV;
- return pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
+ return bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
}
/* v2 offset per ppid and per ee */
-static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
- enum pmic_arb_channel ch_type)
+static int pmic_arb_offset_v2(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
+ enum pmic_arb_channel ch_type)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u16 apid;
u16 ppid;
int rc;
ppid = sid << 8 | ((addr >> 8) & 0xFF);
- rc = pmic_arb_ppid_to_apid_v2(pmic_arb, ppid);
+ rc = pmic_arb_ppid_to_apid_v2(bus, ppid);
if (rc < 0)
return rc;
@@ -1219,33 +1256,34 @@ static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
return 0x1000 * pmic_arb->ee + 0x8000 * apid;
}
-static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
+static int pmic_arb_init_apid_v5(struct spmi_pmic_arb_bus *bus, int index)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
int ret;
if (index) {
- dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
+ dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
index);
return -EINVAL;
}
- pmic_arb->base_apid = 0;
- pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ bus->base_apid = 0;
+ bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
PMIC_ARB_FEATURES_PERIPH_MASK;
- if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
- dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
- pmic_arb->base_apid + pmic_arb->apid_count);
+ if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) {
+ dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n",
+ bus->base_apid + bus->apid_count);
return -EINVAL;
}
- ret = pmic_arb_init_apid_min_max(pmic_arb);
+ ret = pmic_arb_init_apid_min_max(bus);
if (ret)
return ret;
- ret = pmic_arb_read_apid_map_v5(pmic_arb);
+ ret = pmic_arb_read_apid_map_v5(bus);
if (ret) {
- dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
+ dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
ret);
return ret;
}
@@ -1257,15 +1295,16 @@ static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
* v5 offset per ee and per apid for observer channels and per apid for
* read/write channels.
*/
-static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
- enum pmic_arb_channel ch_type)
+static int pmic_arb_offset_v5(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
+ enum pmic_arb_channel ch_type)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u16 apid;
int rc;
u32 offset = 0;
u16 ppid = (sid << 8) | (addr >> 8);
- rc = pmic_arb_ppid_to_apid_v5(pmic_arb, ppid);
+ rc = pmic_arb_ppid_to_apid_v5(bus, ppid);
if (rc < 0)
return rc;
@@ -1275,8 +1314,8 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
offset = 0x10000 * pmic_arb->ee + 0x80 * apid;
break;
case PMIC_ARB_CHANNEL_RW:
- if (pmic_arb->apid_data[apid].write_ee != pmic_arb->ee) {
- dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
+ if (bus->apid_data[apid].write_ee != pmic_arb->ee) {
+ dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
sid, addr);
return -EPERM;
}
@@ -1303,38 +1342,39 @@ static int pmic_arb_get_core_resources_v7(struct platform_device *pdev,
* Only v7 supports 2 buses. Each bus will get a different apid count, read
* from different registers.
*/
-static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
+static int pmic_arb_init_apid_v7(struct spmi_pmic_arb_bus *bus, int index)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
int ret;
if (index == 0) {
- pmic_arb->base_apid = 0;
- pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ bus->base_apid = 0;
+ bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
PMIC_ARB_FEATURES_PERIPH_MASK;
} else if (index == 1) {
- pmic_arb->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ bus->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
PMIC_ARB_FEATURES_PERIPH_MASK;
- pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
+ bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
PMIC_ARB_FEATURES_PERIPH_MASK;
} else {
- dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
- index);
+ dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
+ bus->id);
return -EINVAL;
}
- if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
- dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
- pmic_arb->base_apid + pmic_arb->apid_count);
+ if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) {
+ dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n",
+ bus->base_apid + bus->apid_count);
return -EINVAL;
}
- ret = pmic_arb_init_apid_min_max(pmic_arb);
+ ret = pmic_arb_init_apid_min_max(bus);
if (ret)
return ret;
- ret = pmic_arb_read_apid_map_v5(pmic_arb);
+ ret = pmic_arb_read_apid_map_v5(bus);
if (ret) {
- dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
+ dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
ret);
return ret;
}
@@ -1346,15 +1386,16 @@ static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
* v7 offset per ee and per apid for observer channels and per apid for
* read/write channels.
*/
-static int pmic_arb_offset_v7(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
- enum pmic_arb_channel ch_type)
+static int pmic_arb_offset_v7(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
+ enum pmic_arb_channel ch_type)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u16 apid;
int rc;
u32 offset = 0;
u16 ppid = (sid << 8) | (addr >> 8);
- rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid);
+ rc = pmic_arb->ver_ops->ppid_to_apid(bus, ppid);
if (rc < 0)
return rc;
@@ -1364,8 +1405,8 @@ static int pmic_arb_offset_v7(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
offset = 0x8000 * pmic_arb->ee + 0x20 * apid;
break;
case PMIC_ARB_CHANNEL_RW:
- if (pmic_arb->apid_data[apid].write_ee != pmic_arb->ee) {
- dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
+ if (bus->apid_data[apid].write_ee != pmic_arb->ee) {
+ dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
sid, addr);
return -EPERM;
}
@@ -1387,104 +1428,110 @@ static u32 pmic_arb_fmt_cmd_v2(u8 opc, u8 sid, u16 addr, u8 bc)
}
static void __iomem *
-pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
+pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
{
- return pmic_arb->intr + 0x20 * m + 0x4 * n;
+ return bus->intr + 0x20 * m + 0x4 * n;
}
static void __iomem *
-pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
+pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
{
- return pmic_arb->intr + 0x100000 + 0x1000 * m + 0x4 * n;
+ return bus->intr + 0x100000 + 0x1000 * m + 0x4 * n;
}
static void __iomem *
-pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
+pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
{
- return pmic_arb->intr + 0x200000 + 0x1000 * m + 0x4 * n;
+ return bus->intr + 0x200000 + 0x1000 * m + 0x4 * n;
}
static void __iomem *
-pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
+pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
{
- return pmic_arb->intr + 0x10000 * m + 0x4 * n;
+ return bus->intr + 0x10000 * m + 0x4 * n;
}
static void __iomem *
-pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
+pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
{
- return pmic_arb->intr + 0x1000 * m + 0x4 * n;
+ return bus->intr + 0x1000 * m + 0x4 * n;
}
static void __iomem *
-pmic_arb_acc_enable_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_acc_enable_v1(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0x200 + 0x4 * n;
+ return bus->intr + 0x200 + 0x4 * n;
}
static void __iomem *
-pmic_arb_acc_enable_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_acc_enable_v2(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0x1000 * n;
+ return bus->intr + 0x1000 * n;
}
static void __iomem *
-pmic_arb_acc_enable_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_acc_enable_v5(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x100 + 0x10000 * n;
}
static void __iomem *
-pmic_arb_acc_enable_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_acc_enable_v7(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x100 + 0x1000 * n;
}
static void __iomem *
-pmic_arb_irq_status_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_status_v1(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0x600 + 0x4 * n;
+ return bus->intr + 0x600 + 0x4 * n;
}
static void __iomem *
-pmic_arb_irq_status_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_status_v2(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0x4 + 0x1000 * n;
+ return bus->intr + 0x4 + 0x1000 * n;
}
static void __iomem *
-pmic_arb_irq_status_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_status_v5(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x104 + 0x10000 * n;
}
static void __iomem *
-pmic_arb_irq_status_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_status_v7(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x104 + 0x1000 * n;
}
static void __iomem *
-pmic_arb_irq_clear_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_clear_v1(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0xA00 + 0x4 * n;
+ return bus->intr + 0xA00 + 0x4 * n;
}
static void __iomem *
-pmic_arb_irq_clear_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_clear_v2(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0x8 + 0x1000 * n;
+ return bus->intr + 0x8 + 0x1000 * n;
}
static void __iomem *
-pmic_arb_irq_clear_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_clear_v5(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x108 + 0x10000 * n;
}
static void __iomem *
-pmic_arb_irq_clear_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_clear_v7(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x108 + 0x1000 * n;
}
@@ -1504,9 +1551,9 @@ static u32 pmic_arb_apid_map_offset_v7(u16 n)
}
static void __iomem *
-pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_apid_owner_v2(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->cnfg + 0x700 + 0x4 * n;
+ return bus->cnfg + 0x700 + 0x4 * n;
}
/*
@@ -1515,9 +1562,9 @@ pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
* 0.
*/
static void __iomem *
-pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_apid_owner_v7(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->cnfg + 0x4 * (n - pmic_arb->base_apid);
+ return bus->cnfg + 0x4 * (n - bus->base_apid);
}
static const struct pmic_arb_ver_ops pmic_arb_v1 = {
@@ -1607,29 +1654,159 @@ static const struct irq_domain_ops pmic_arb_irq_domain_ops = {
.translate = qpnpint_irq_domain_translate,
};
+static int spmi_pmic_arb_bus_init(struct platform_device *pdev,
+ struct device_node *node,
+ struct spmi_pmic_arb *pmic_arb)
+{
+ int bus_index = pmic_arb->buses_available;
+ struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[bus_index];
+ struct device *dev = &pdev->dev;
+ struct spmi_controller *ctrl;
+ void __iomem *intr;
+ void __iomem *cnfg;
+ int index, ret;
+ u32 irq;
+
+ ctrl = devm_spmi_controller_alloc(dev, sizeof(*ctrl));
+ if (IS_ERR(ctrl))
+ return PTR_ERR(ctrl);
+
+ ctrl->cmd = pmic_arb_cmd;
+ ctrl->read_cmd = pmic_arb_read_cmd;
+ ctrl->write_cmd = pmic_arb_write_cmd;
+
+ bus = spmi_controller_get_drvdata(ctrl);
+ bus->spmic = ctrl;
+
+ bus->ppid_to_apid = devm_kcalloc(dev, PMIC_ARB_MAX_PPID,
+ sizeof(*bus->ppid_to_apid),
+ GFP_KERNEL);
+ if (!bus->ppid_to_apid)
+ return -ENOMEM;
+
+ bus->apid_data = devm_kcalloc(dev, pmic_arb->max_periphs,
+ sizeof(*bus->apid_data),
+ GFP_KERNEL);
+ if (!bus->apid_data)
+ return -ENOMEM;
+
+ index = of_property_match_string(node, "reg-names", "cnfg");
+ if (index < 0) {
+ dev_err(dev, "cnfg reg region missing");
+ return -EINVAL;
+ }
+
+ cnfg = devm_of_iomap(dev, node, index, NULL);
+ if (IS_ERR(cnfg))
+ return PTR_ERR(cnfg);
+
+ index = of_property_match_string(node, "reg-names", "intr");
+ if (index < 0) {
+ dev_err(dev, "intr reg region missing");
+ return -EINVAL;
+ }
+
+ intr = devm_of_iomap(dev, node, index, NULL);
+ if (IS_ERR(intr))
+ return PTR_ERR(intr);
+
+ irq = of_irq_get_byname(node, "periph_irq");
+ if (irq < 0)
+ return irq;
+
+ bus->pmic_arb = pmic_arb;
+ bus->intr = intr;
+ bus->cnfg = cnfg;
+ bus->irq = irq;
+ bus->id = bus_index;
+
+ ret = pmic_arb->ver_ops->init_apid(bus, bus_index);
+ if (ret)
+ return ret;
+
+ dev_dbg(&pdev->dev, "adding irq domain for bus %d\n", bus_index);
+
+ bus->domain = irq_domain_add_tree(dev->of_node,
+ &pmic_arb_irq_domain_ops, bus);
+ if (!bus->domain) {
+ dev_err(&pdev->dev, "unable to create irq_domain\n");
+ return -ENOMEM;
+ }
+
+ irq_set_chained_handler_and_data(bus->irq,
+ pmic_arb_chained_irq, bus);
+
+ bus->spmic->dev.of_node = node;
+ dev_set_name(&bus->spmic->dev, "spmi-%d", bus_index);
+
+ ret = devm_spmi_controller_add(dev, bus->spmic);
+ if (ret)
+ return ret;
+
+ pmic_arb->buses_available++;
+
+ return 0;
+}
+
+static int spmi_pmic_arb_register_buses(struct spmi_pmic_arb *pmic_arb,
+ struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *node = dev->of_node;
+ struct device_node *child;
+ int ret;
+
+ /* legacy mode doesn't provide child node for the bus */
+ if (of_device_is_compatible(node, "qcom,spmi-pmic-arb"))
+ return spmi_pmic_arb_bus_init(pdev, node, pmic_arb);
+
+ for_each_available_child_of_node(node, child) {
+ if (of_node_name_eq(child, "spmi")) {
+ ret = spmi_pmic_arb_bus_init(pdev, child, pmic_arb);
+ if (ret)
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+static void spmi_pmic_arb_deregister_buses(struct spmi_pmic_arb *pmic_arb)
+{
+ int i;
+
+ for (i = 0; i < PMIC_ARB_MAX_BUSES; i++) {
+ struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[i];
+
+ irq_set_chained_handler_and_data(bus->irq,
+ NULL, NULL);
+ irq_domain_remove(bus->domain);
+ }
+}
+
static int spmi_pmic_arb_probe(struct platform_device *pdev)
{
struct spmi_pmic_arb *pmic_arb;
- struct spmi_controller *ctrl;
+ struct device *dev = &pdev->dev;
struct resource *res;
void __iomem *core;
u32 channel, ee, hw_ver;
int err;
- ctrl = devm_spmi_controller_alloc(&pdev->dev, sizeof(*pmic_arb));
- if (IS_ERR(ctrl))
- return PTR_ERR(ctrl);
-
- pmic_arb = spmi_controller_get_drvdata(ctrl);
- pmic_arb->spmic = ctrl;
+ pmic_arb = devm_kzalloc(dev, sizeof(*pmic_arb), GFP_KERNEL);
+ if (!pmic_arb)
+ return -ENOMEM;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
- core = devm_ioremap(&ctrl->dev, res->start, resource_size(res));
+ core = devm_ioremap(dev, res->start, resource_size(res));
if (IS_ERR(core))
return PTR_ERR(core);
pmic_arb->core_size = resource_size(res);
+ platform_set_drvdata(pdev, pmic_arb);
+ raw_spin_lock_init(&pmic_arb->lock);
+
hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
if (hw_ver < PMIC_ARB_VERSION_V2_MIN)
@@ -1643,30 +1820,12 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
else
pmic_arb->ver_ops = &pmic_arb_v7;
- dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
- pmic_arb->ver_ops->ver_str, hw_ver);
-
err = pmic_arb->ver_ops->get_core_resources(pdev, core);
if (err)
return err;
- err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
- if (err)
- return err;
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr");
- pmic_arb->intr = devm_ioremap_resource(&ctrl->dev, res);
- if (IS_ERR(pmic_arb->intr))
- return PTR_ERR(pmic_arb->intr);
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cnfg");
- pmic_arb->cnfg = devm_ioremap_resource(&ctrl->dev, res);
- if (IS_ERR(pmic_arb->cnfg))
- return PTR_ERR(pmic_arb->cnfg);
-
- pmic_arb->irq = platform_get_irq_byname(pdev, "periph_irq");
- if (pmic_arb->irq < 0)
- return pmic_arb->irq;
+ dev_info(dev, "PMIC arbiter version %s (0x%x)\n",
+ pmic_arb->ver_ops->ver_str, hw_ver);
err = of_property_read_u32(pdev->dev.of_node, "qcom,channel", &channel);
if (err) {
@@ -1695,46 +1854,19 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
pmic_arb->ee = ee;
- platform_set_drvdata(pdev, ctrl);
- raw_spin_lock_init(&pmic_arb->lock);
-
- ctrl->cmd = pmic_arb_cmd;
- ctrl->read_cmd = pmic_arb_read_cmd;
- ctrl->write_cmd = pmic_arb_write_cmd;
-
- dev_dbg(&pdev->dev, "adding irq domain\n");
- pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node,
- &pmic_arb_irq_domain_ops, pmic_arb);
- if (!pmic_arb->domain) {
- dev_err(&pdev->dev, "unable to create irq_domain\n");
- return -ENOMEM;
- }
-
- irq_set_chained_handler_and_data(pmic_arb->irq, pmic_arb_chained_irq,
- pmic_arb);
- err = spmi_controller_add(ctrl);
- if (err)
- goto err_domain_remove;
-
- return 0;
-
-err_domain_remove:
- irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL);
- irq_domain_remove(pmic_arb->domain);
- return err;
+ return spmi_pmic_arb_register_buses(pmic_arb, pdev);
}
static void spmi_pmic_arb_remove(struct platform_device *pdev)
{
- struct spmi_controller *ctrl = platform_get_drvdata(pdev);
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
- spmi_controller_remove(ctrl);
- irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL);
- irq_domain_remove(pmic_arb->domain);
+ struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
+
+ spmi_pmic_arb_deregister_buses(pmic_arb);
}
static const struct of_device_id spmi_pmic_arb_match_table[] = {
{ .compatible = "qcom,spmi-pmic-arb", },
+ { .compatible = "qcom,x1e80100-spmi-pmic-arb", },
{},
};
MODULE_DEVICE_TABLE(of, spmi_pmic_arb_match_table);
--
2.34.1
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH RESEND v6 5/5] spmi: pmic-arb: Add multi bus support
@ 2024-03-26 16:28 ` Abel Vesa
0 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 16:28 UTC (permalink / raw)
To: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree, Abel Vesa
Starting with HW version 7, there are actually two separate buses
(with two separate sets of wires). So in order to support both
buses, we need to register a separate spmi controller for each one.
Add a separate compatible for v7 only, but allow the legacy platforms
that have v7 to still work with the old one, for DT backwards
compatibility.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
drivers/spmi/spmi-pmic-arb.c | 726 +++++++++++++++++++++++++------------------
1 file changed, 429 insertions(+), 297 deletions(-)
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 188252bfb95f..ca0f42952445 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -13,6 +13,8 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/spmi.h>
@@ -94,6 +96,8 @@ enum pmic_arb_channel {
PMIC_ARB_CHANNEL_OBS,
};
+#define PMIC_ARB_MAX_BUSES 2
+
/* Maximum number of support PMIC peripherals */
#define PMIC_ARB_MAX_PERIPHS 512
#define PMIC_ARB_MAX_PERIPHS_V7 1024
@@ -125,58 +129,68 @@ struct apid_data {
u8 irq_ee;
};
+struct spmi_pmic_arb;
+
/**
- * struct spmi_pmic_arb - SPMI PMIC Arbiter object
+ * struct spmi_pmic_arb_bus - SPMI PMIC Arbiter Bus object
*
- * @rd_base: on v1 "core", on v2 "observer" register base off DT.
- * @wr_base: on v1 "core", on v2 "chnls" register base off DT.
* @intr: address of the SPMI interrupt control registers.
* @cnfg: address of the PMIC Arbiter configuration registers.
- * @lock: lock to synchronize accesses.
- * @channel: execution environment channel to use for accesses.
- * @irq: PMIC ARB interrupt.
- * @ee: the current Execution Environment
- * @bus_instance: on v7: 0 = primary SPMI bus, 1 = secondary SPMI bus
- * @min_apid: minimum APID (used for bounding IRQ search)
- * @max_apid: maximum APID
+ * @domain: irq domain object for PMIC IRQ domain
* @base_apid: on v7: minimum APID associated with the particular SPMI
* bus instance
* @apid_count: on v5 and v7: number of APIDs associated with the
* particular SPMI bus instance
* @mapping_table: in-memory copy of PPID -> APID mapping table.
- * @domain: irq domain object for PMIC IRQ domain
- * @spmic: SPMI controller object
- * @ver_ops: version dependent operations.
* @ppid_to_apid: in-memory copy of PPID -> APID mapping table.
- * @last_apid: Highest value APID in use
* @apid_data: Table of data for all APIDs
+ * @last_apid: Highest value APID in use
+ * @irq: PMIC ARB interrupt.
+ */
+struct spmi_pmic_arb_bus {
+ struct spmi_pmic_arb *pmic_arb;
+ struct irq_domain *domain;
+ void __iomem *intr;
+ void __iomem *cnfg;
+ struct spmi_controller *spmic;
+ u16 base_apid;
+ int apid_count;
+ u32 *mapping_table;
+ DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS);
+ u16 *ppid_to_apid;
+ u16 last_apid;
+ struct apid_data *apid_data;
+ u16 min_apid;
+ u16 max_apid;
+ int irq;
+ u8 id;
+};
+
+/**
+ * struct spmi_pmic_arb - SPMI PMIC Arbiter object
+ *
+ * @rd_base: on v1 "core", on v2 "observer" register base off DT.
+ * @wr_base: on v1 "core", on v2 "chnls" register base off DT.
+ * @lock: lock to synchronize accesses.
+ * @channel: execution environment channel to use for accesses.
+ * @ee: the current Execution Environment
+ * @min_apid: minimum APID (used for bounding IRQ search)
+ * @max_apid: maximum APID
+ * @ver_ops: version dependent operations.
* @max_periphs: Number of elements in apid_data[]
*/
struct spmi_pmic_arb {
void __iomem *rd_base;
void __iomem *wr_base;
- void __iomem *intr;
- void __iomem *cnfg;
void __iomem *core;
resource_size_t core_size;
raw_spinlock_t lock;
u8 channel;
- int irq;
u8 ee;
- u32 bus_instance;
- u16 min_apid;
- u16 max_apid;
- u16 base_apid;
- int apid_count;
- u32 *mapping_table;
- DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS);
- struct irq_domain *domain;
- struct spmi_controller *spmic;
const struct pmic_arb_ver_ops *ver_ops;
- u16 *ppid_to_apid;
- u16 last_apid;
- struct apid_data *apid_data;
int max_periphs;
+ struct spmi_pmic_arb_bus buses[PMIC_ARB_MAX_BUSES];
+ int buses_available;
};
/**
@@ -204,21 +218,21 @@ struct spmi_pmic_arb {
struct pmic_arb_ver_ops {
const char *ver_str;
int (*get_core_resources)(struct platform_device *pdev, void __iomem *core);
- int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
- int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
+ int (*init_apid)(struct spmi_pmic_arb_bus *bus, int index);
+ int (*ppid_to_apid)(struct spmi_pmic_arb_bus *bus, u16 ppid);
/* spmi commands (read_cmd, write_cmd, cmd) functionality */
- int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
- enum pmic_arb_channel ch_type);
+ int (*offset)(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
+ enum pmic_arb_channel ch_type);
u32 (*fmt_cmd)(u8 opc, u8 sid, u16 addr, u8 bc);
int (*non_data_cmd)(struct spmi_controller *ctrl, u8 opc, u8 sid);
/* Interrupts controller functionality (offset of PIC registers) */
- void __iomem *(*owner_acc_status)(struct spmi_pmic_arb *pmic_arb, u8 m,
+ void __iomem *(*owner_acc_status)(struct spmi_pmic_arb_bus *bus, u8 m,
u16 n);
- void __iomem *(*acc_enable)(struct spmi_pmic_arb *pmic_arb, u16 n);
- void __iomem *(*irq_status)(struct spmi_pmic_arb *pmic_arb, u16 n);
- void __iomem *(*irq_clear)(struct spmi_pmic_arb *pmic_arb, u16 n);
+ void __iomem *(*acc_enable)(struct spmi_pmic_arb_bus *bus, u16 n);
+ void __iomem *(*irq_status)(struct spmi_pmic_arb_bus *bus, u16 n);
+ void __iomem *(*irq_clear)(struct spmi_pmic_arb_bus *bus, u16 n);
u32 (*apid_map_offset)(u16 n);
- void __iomem *(*apid_owner)(struct spmi_pmic_arb *pmic_arb, u16 n);
+ void __iomem *(*apid_owner)(struct spmi_pmic_arb_bus *bus, u16 n);
};
static inline void pmic_arb_base_write(struct spmi_pmic_arb *pmic_arb,
@@ -266,13 +280,14 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
void __iomem *base, u8 sid, u16 addr,
enum pmic_arb_channel ch_type)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u32 status = 0;
u32 timeout = PMIC_ARB_TIMEOUT_US;
u32 offset;
int rc;
- rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, ch_type);
+ rc = pmic_arb->ver_ops->offset(bus, sid, addr, ch_type);
if (rc < 0)
return rc;
@@ -284,21 +299,21 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
if (status & PMIC_ARB_STATUS_DONE) {
if (status & PMIC_ARB_STATUS_DENIED) {
- dev_err(&ctrl->dev, "%s: %#x %#x: transaction denied (%#x)\n",
- __func__, sid, addr, status);
+ dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction denied (%#x)\n",
+ __func__, bus->id, sid, addr, status);
return -EPERM;
}
if (status & PMIC_ARB_STATUS_FAILURE) {
- dev_err(&ctrl->dev, "%s: %#x %#x: transaction failed (%#x)\n",
- __func__, sid, addr, status);
+ dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction failed (%#x) reg: 0x%x\n",
+ __func__, bus->id, sid, addr, status, offset);
WARN_ON(1);
return -EIO;
}
if (status & PMIC_ARB_STATUS_DROPPED) {
- dev_err(&ctrl->dev, "%s: %#x %#x: transaction dropped (%#x)\n",
- __func__, sid, addr, status);
+ dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction dropped (%#x)\n",
+ __func__, bus->id, sid, addr, status);
return -EIO;
}
@@ -307,8 +322,8 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
udelay(1);
}
- dev_err(&ctrl->dev, "%s: %#x %#x: timeout, status %#x\n",
- __func__, sid, addr, status);
+ dev_err(&ctrl->dev, "%s: %#x %#x %#x: timeout, status %#x\n",
+ __func__, bus->id, sid, addr, status);
return -ETIMEDOUT;
}
@@ -316,12 +331,13 @@ static int
pmic_arb_non_data_cmd_v1(struct spmi_controller *ctrl, u8 opc, u8 sid)
{
struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[0];
unsigned long flags;
u32 cmd;
int rc;
u32 offset;
- rc = pmic_arb->ver_ops->offset(pmic_arb, sid, 0, PMIC_ARB_CHANNEL_RW);
+ rc = pmic_arb->ver_ops->offset(bus, sid, 0, PMIC_ARB_CHANNEL_RW);
if (rc < 0)
return rc;
@@ -357,20 +373,21 @@ static int pmic_arb_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid)
return pmic_arb->ver_ops->non_data_cmd(ctrl, opc, sid);
}
-static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc, u8 sid,
+static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb_bus *bus, u8 opc, u8 sid,
u16 addr, size_t len, u32 *cmd, u32 *offset)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u8 bc = len - 1;
int rc;
- rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr,
+ rc = pmic_arb->ver_ops->offset(bus, sid, addr,
PMIC_ARB_CHANNEL_OBS);
if (rc < 0)
return rc;
*offset = rc;
if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
- dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
+ dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
PMIC_ARB_MAX_TRANS_BYTES, len);
return -EINVAL;
}
@@ -394,7 +411,8 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
u32 offset, u8 sid, u16 addr, u8 *buf,
size_t len)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u8 bc = len - 1;
int rc;
@@ -416,12 +434,13 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
u16 addr, u8 *buf, size_t len)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
unsigned long flags;
u32 cmd, offset;
int rc;
- rc = pmic_arb_fmt_read_cmd(pmic_arb, opc, sid, addr, len, &cmd,
+ rc = pmic_arb_fmt_read_cmd(bus, opc, sid, addr, len, &cmd,
&offset);
if (rc)
return rc;
@@ -433,21 +452,22 @@ static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
return rc;
}
-static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc,
+static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb_bus *bus, u8 opc,
u8 sid, u16 addr, size_t len, u32 *cmd,
u32 *offset)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u8 bc = len - 1;
int rc;
- rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr,
+ rc = pmic_arb->ver_ops->offset(bus, sid, addr,
PMIC_ARB_CHANNEL_RW);
if (rc < 0)
return rc;
*offset = rc;
if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
- dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
+ dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
PMIC_ARB_MAX_TRANS_BYTES, len);
return -EINVAL;
}
@@ -473,7 +493,8 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
u32 offset, u8 sid, u16 addr,
const u8 *buf, size_t len)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u8 bc = len - 1;
/* Write data to FIFOs */
@@ -492,12 +513,13 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
u16 addr, const u8 *buf, size_t len)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
unsigned long flags;
u32 cmd, offset;
int rc;
- rc = pmic_arb_fmt_write_cmd(pmic_arb, opc, sid, addr, len, &cmd,
+ rc = pmic_arb_fmt_write_cmd(bus, opc, sid, addr, len, &cmd,
&offset);
if (rc)
return rc;
@@ -513,18 +535,19 @@ static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
static int pmic_arb_masked_write(struct spmi_controller *ctrl, u8 sid, u16 addr,
const u8 *buf, const u8 *mask, size_t len)
{
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u32 read_cmd, read_offset, write_cmd, write_offset;
u8 temp[PMIC_ARB_MAX_TRANS_BYTES];
unsigned long flags;
int rc, i;
- rc = pmic_arb_fmt_read_cmd(pmic_arb, SPMI_CMD_EXT_READL, sid, addr, len,
+ rc = pmic_arb_fmt_read_cmd(bus, SPMI_CMD_EXT_READL, sid, addr, len,
&read_cmd, &read_offset);
if (rc)
return rc;
- rc = pmic_arb_fmt_write_cmd(pmic_arb, SPMI_CMD_EXT_WRITEL, sid, addr,
+ rc = pmic_arb_fmt_write_cmd(bus, SPMI_CMD_EXT_WRITEL, sid, addr,
len, &write_cmd, &write_offset);
if (rc)
return rc;
@@ -567,25 +590,25 @@ struct spmi_pmic_arb_qpnpint_type {
static void qpnpint_spmi_write(struct irq_data *d, u8 reg, void *buf,
size_t len)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
u8 sid = hwirq_to_sid(d->hwirq);
u8 per = hwirq_to_per(d->hwirq);
- if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid,
+ if (pmic_arb_write_cmd(bus->spmic, SPMI_CMD_EXT_WRITEL, sid,
(per << 8) + reg, buf, len))
- dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n",
+ dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\n",
d->irq);
}
static void qpnpint_spmi_read(struct irq_data *d, u8 reg, void *buf, size_t len)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
u8 sid = hwirq_to_sid(d->hwirq);
u8 per = hwirq_to_per(d->hwirq);
- if (pmic_arb_read_cmd(pmic_arb->spmic, SPMI_CMD_EXT_READL, sid,
+ if (pmic_arb_read_cmd(bus->spmic, SPMI_CMD_EXT_READL, sid,
(per << 8) + reg, buf, len))
- dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n",
+ dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\n",
d->irq);
}
@@ -593,47 +616,49 @@ static int qpnpint_spmi_masked_write(struct irq_data *d, u8 reg,
const void *buf, const void *mask,
size_t len)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
u8 sid = hwirq_to_sid(d->hwirq);
u8 per = hwirq_to_per(d->hwirq);
int rc;
- rc = pmic_arb_masked_write(pmic_arb->spmic, sid, (per << 8) + reg, buf,
+ rc = pmic_arb_masked_write(bus->spmic, sid, (per << 8) + reg, buf,
mask, len);
if (rc)
- dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x rc=%d\n",
+ dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x rc=%d\n",
d->irq, rc);
return rc;
}
-static void cleanup_irq(struct spmi_pmic_arb *pmic_arb, u16 apid, int id)
+static void cleanup_irq(struct spmi_pmic_arb_bus *bus, u16 apid, int id)
{
- u16 ppid = pmic_arb->apid_data[apid].ppid;
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
+ u16 ppid = bus->apid_data[apid].ppid;
u8 sid = ppid >> 8;
u8 per = ppid & 0xFF;
u8 irq_mask = BIT(id);
- dev_err_ratelimited(&pmic_arb->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n",
- __func__, apid, sid, per, id);
- writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(pmic_arb, apid));
+ dev_err_ratelimited(&bus->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n",
+ __func__, apid, sid, per, id);
+ writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(bus, apid));
}
-static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid)
+static int periph_interrupt(struct spmi_pmic_arb_bus *bus, u16 apid)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
unsigned int irq;
u32 status, id;
int handled = 0;
- u8 sid = (pmic_arb->apid_data[apid].ppid >> 8) & 0xF;
- u8 per = pmic_arb->apid_data[apid].ppid & 0xFF;
+ u8 sid = (bus->apid_data[apid].ppid >> 8) & 0xF;
+ u8 per = bus->apid_data[apid].ppid & 0xFF;
- status = readl_relaxed(pmic_arb->ver_ops->irq_status(pmic_arb, apid));
+ status = readl_relaxed(pmic_arb->ver_ops->irq_status(bus, apid));
while (status) {
id = ffs(status) - 1;
status &= ~BIT(id);
- irq = irq_find_mapping(pmic_arb->domain,
- spec_to_hwirq(sid, per, id, apid));
+ irq = irq_find_mapping(bus->domain,
+ spec_to_hwirq(sid, per, id, apid));
if (irq == 0) {
- cleanup_irq(pmic_arb, apid, id);
+ cleanup_irq(bus, apid, id);
continue;
}
generic_handle_irq(irq);
@@ -645,16 +670,17 @@ static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid)
static void pmic_arb_chained_irq(struct irq_desc *desc)
{
- struct spmi_pmic_arb *pmic_arb = irq_desc_get_handler_data(desc);
+ struct spmi_pmic_arb_bus *bus = irq_desc_get_handler_data(desc);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
struct irq_chip *chip = irq_desc_get_chip(desc);
- int first = pmic_arb->min_apid;
- int last = pmic_arb->max_apid;
+ int first = bus->min_apid;
+ int last = bus->max_apid;
/*
* acc_offset will be non-zero for the secondary SPMI bus instance on
* v7 controllers.
*/
- int acc_offset = pmic_arb->base_apid >> 5;
+ int acc_offset = bus->base_apid >> 5;
u8 ee = pmic_arb->ee;
u32 status, enable, handled = 0;
int i, id, apid;
@@ -665,7 +691,7 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
chained_irq_enter(chip, desc);
for (i = first >> 5; i <= last >> 5; ++i) {
- status = readl_relaxed(ver_ops->owner_acc_status(pmic_arb, ee, i - acc_offset));
+ status = readl_relaxed(ver_ops->owner_acc_status(bus, ee, i - acc_offset));
if (status)
acc_valid = true;
@@ -679,9 +705,9 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
continue;
}
enable = readl_relaxed(
- ver_ops->acc_enable(pmic_arb, apid));
+ ver_ops->acc_enable(bus, apid));
if (enable & SPMI_PIC_ACC_ENABLE_BIT)
- if (periph_interrupt(pmic_arb, apid) != 0)
+ if (periph_interrupt(bus, apid) != 0)
handled++;
}
}
@@ -690,19 +716,19 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
if (!acc_valid) {
for (i = first; i <= last; i++) {
/* skip if APPS is not irq owner */
- if (pmic_arb->apid_data[i].irq_ee != pmic_arb->ee)
+ if (bus->apid_data[i].irq_ee != pmic_arb->ee)
continue;
irq_status = readl_relaxed(
- ver_ops->irq_status(pmic_arb, i));
+ ver_ops->irq_status(bus, i));
if (irq_status) {
enable = readl_relaxed(
- ver_ops->acc_enable(pmic_arb, i));
+ ver_ops->acc_enable(bus, i));
if (enable & SPMI_PIC_ACC_ENABLE_BIT) {
- dev_dbg(&pmic_arb->spmic->dev,
+ dev_dbg(&bus->spmic->dev,
"Dispatching IRQ for apid=%d status=%x\n",
i, irq_status);
- if (periph_interrupt(pmic_arb, i) != 0)
+ if (periph_interrupt(bus, i) != 0)
handled++;
}
}
@@ -717,12 +743,13 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
static void qpnpint_irq_ack(struct irq_data *d)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u8 irq = hwirq_to_irq(d->hwirq);
u16 apid = hwirq_to_apid(d->hwirq);
u8 data;
- writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(pmic_arb, apid));
+ writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(bus, apid));
data = BIT(irq);
qpnpint_spmi_write(d, QPNPINT_REG_LATCHED_CLR, &data, 1);
@@ -738,14 +765,15 @@ static void qpnpint_irq_mask(struct irq_data *d)
static void qpnpint_irq_unmask(struct irq_data *d)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
u8 irq = hwirq_to_irq(d->hwirq);
u16 apid = hwirq_to_apid(d->hwirq);
u8 buf[2];
writel_relaxed(SPMI_PIC_ACC_ENABLE_BIT,
- ver_ops->acc_enable(pmic_arb, apid));
+ ver_ops->acc_enable(bus, apid));
qpnpint_spmi_read(d, QPNPINT_REG_EN_SET, &buf[0], 1);
if (!(buf[0] & BIT(irq))) {
@@ -802,9 +830,9 @@ static int qpnpint_irq_set_type(struct irq_data *d, unsigned int flow_type)
static int qpnpint_irq_set_wake(struct irq_data *d, unsigned int on)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
- return irq_set_irq_wake(pmic_arb->irq, on);
+ return irq_set_irq_wake(bus->irq, on);
}
static int qpnpint_get_irqchip_state(struct irq_data *d,
@@ -826,17 +854,18 @@ static int qpnpint_get_irqchip_state(struct irq_data *d,
static int qpnpint_irq_domain_activate(struct irq_domain *domain,
struct irq_data *d, bool reserve)
{
- struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u16 periph = hwirq_to_per(d->hwirq);
u16 apid = hwirq_to_apid(d->hwirq);
u16 sid = hwirq_to_sid(d->hwirq);
u16 irq = hwirq_to_irq(d->hwirq);
u8 buf;
- if (pmic_arb->apid_data[apid].irq_ee != pmic_arb->ee) {
- dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n",
+ if (bus->apid_data[apid].irq_ee != pmic_arb->ee) {
+ dev_err(&bus->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n",
sid, periph, irq, pmic_arb->ee,
- pmic_arb->apid_data[apid].irq_ee);
+ bus->apid_data[apid].irq_ee);
return -ENODEV;
}
@@ -863,15 +892,16 @@ static int qpnpint_irq_domain_translate(struct irq_domain *d,
unsigned long *out_hwirq,
unsigned int *out_type)
{
- struct spmi_pmic_arb *pmic_arb = d->host_data;
+ struct spmi_pmic_arb_bus *bus = d->host_data;
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u32 *intspec = fwspec->param;
u16 apid, ppid;
int rc;
- dev_dbg(&pmic_arb->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
+ dev_dbg(&bus->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
intspec[0], intspec[1], intspec[2]);
- if (irq_domain_get_of_node(d) != pmic_arb->spmic->dev.of_node)
+ if (irq_domain_get_of_node(d) != bus->spmic->dev.of_node)
return -EINVAL;
if (fwspec->param_count != 4)
return -EINVAL;
@@ -879,37 +909,38 @@ static int qpnpint_irq_domain_translate(struct irq_domain *d,
return -EINVAL;
ppid = intspec[0] << 8 | intspec[1];
- rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid);
+ rc = pmic_arb->ver_ops->ppid_to_apid(bus, ppid);
if (rc < 0) {
- dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u rc = %d\n",
- intspec[0], intspec[1], intspec[2], rc);
+ dev_err(&bus->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u rc = %d\n",
+ intspec[0], intspec[1], intspec[2], rc);
return rc;
}
apid = rc;
/* Keep track of {max,min}_apid for bounding search during interrupt */
- if (apid > pmic_arb->max_apid)
- pmic_arb->max_apid = apid;
- if (apid < pmic_arb->min_apid)
- pmic_arb->min_apid = apid;
+ if (apid > bus->max_apid)
+ bus->max_apid = apid;
+ if (apid < bus->min_apid)
+ bus->min_apid = apid;
*out_hwirq = spec_to_hwirq(intspec[0], intspec[1], intspec[2], apid);
*out_type = intspec[3] & IRQ_TYPE_SENSE_MASK;
- dev_dbg(&pmic_arb->spmic->dev, "out_hwirq = %lu\n", *out_hwirq);
+ dev_dbg(&bus->spmic->dev, "out_hwirq = %lu\n", *out_hwirq);
return 0;
}
static struct lock_class_key qpnpint_irq_lock_class, qpnpint_irq_request_class;
-static void qpnpint_irq_domain_map(struct spmi_pmic_arb *pmic_arb,
+static void qpnpint_irq_domain_map(struct spmi_pmic_arb_bus *bus,
struct irq_domain *domain, unsigned int virq,
irq_hw_number_t hwirq, unsigned int type)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
irq_flow_handler_t handler;
- dev_dbg(&pmic_arb->spmic->dev, "virq = %u, hwirq = %lu, type = %u\n",
+ dev_dbg(&bus->spmic->dev, "virq = %u, hwirq = %lu, type = %u\n",
virq, hwirq, type);
if (type & IRQ_TYPE_EDGE_BOTH)
@@ -928,7 +959,7 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
unsigned int virq, unsigned int nr_irqs,
void *data)
{
- struct spmi_pmic_arb *pmic_arb = domain->host_data;
+ struct spmi_pmic_arb_bus *bus = domain->host_data;
struct irq_fwspec *fwspec = data;
irq_hw_number_t hwirq;
unsigned int type;
@@ -939,20 +970,22 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
return ret;
for (i = 0; i < nr_irqs; i++)
- qpnpint_irq_domain_map(pmic_arb, domain, virq + i, hwirq + i,
+ qpnpint_irq_domain_map(bus, domain, virq + i, hwirq + i,
type);
return 0;
}
-static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
+static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb_bus *bus)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
+
/*
* Initialize max_apid/min_apid to the opposite bounds, during
* the irq domain translation, we are sure to update these
*/
- pmic_arb->max_apid = 0;
- pmic_arb->min_apid = pmic_arb->max_periphs - 1;
+ bus->max_apid = 0;
+ bus->min_apid = pmic_arb->max_periphs - 1;
return 0;
}
@@ -970,43 +1003,44 @@ static int pmic_arb_get_core_resources_v1(struct platform_device *pdev,
return 0;
}
-static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
+static int pmic_arb_init_apid_v1(struct spmi_pmic_arb_bus *bus, int index)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u32 *mapping_table;
if (index) {
- dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
+ dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
index);
return -EINVAL;
}
- mapping_table = devm_kcalloc(&pmic_arb->spmic->dev, pmic_arb->max_periphs,
+ mapping_table = devm_kcalloc(&bus->spmic->dev, pmic_arb->max_periphs,
sizeof(*mapping_table), GFP_KERNEL);
if (!mapping_table)
return -ENOMEM;
- pmic_arb->mapping_table = mapping_table;
+ bus->mapping_table = mapping_table;
- return pmic_arb_init_apid_min_max(pmic_arb);
+ return pmic_arb_init_apid_min_max(bus);
}
-static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
+static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb_bus *bus, u16 ppid)
{
- u32 *mapping_table = pmic_arb->mapping_table;
+ u32 *mapping_table = bus->mapping_table;
int index = 0, i;
u16 apid_valid;
u16 apid;
u32 data;
- apid_valid = pmic_arb->ppid_to_apid[ppid];
+ apid_valid = bus->ppid_to_apid[ppid];
if (apid_valid & PMIC_ARB_APID_VALID) {
apid = apid_valid & ~PMIC_ARB_APID_VALID;
return apid;
}
for (i = 0; i < SPMI_MAPPING_TABLE_TREE_DEPTH; ++i) {
- if (!test_and_set_bit(index, pmic_arb->mapping_table_valid))
- mapping_table[index] = readl_relaxed(pmic_arb->cnfg +
+ if (!test_and_set_bit(index, bus->mapping_table_valid))
+ mapping_table[index] = readl_relaxed(bus->cnfg +
SPMI_MAPPING_TABLE_REG(index));
data = mapping_table[index];
@@ -1016,9 +1050,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
index = SPMI_MAPPING_BIT_IS_1_RESULT(data);
} else {
apid = SPMI_MAPPING_BIT_IS_1_RESULT(data);
- pmic_arb->ppid_to_apid[ppid]
+ bus->ppid_to_apid[ppid]
= apid | PMIC_ARB_APID_VALID;
- pmic_arb->apid_data[apid].ppid = ppid;
+ bus->apid_data[apid].ppid = ppid;
return apid;
}
} else {
@@ -1026,9 +1060,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
index = SPMI_MAPPING_BIT_IS_0_RESULT(data);
} else {
apid = SPMI_MAPPING_BIT_IS_0_RESULT(data);
- pmic_arb->ppid_to_apid[ppid]
+ bus->ppid_to_apid[ppid]
= apid | PMIC_ARB_APID_VALID;
- pmic_arb->apid_data[apid].ppid = ppid;
+ bus->apid_data[apid].ppid = ppid;
return apid;
}
}
@@ -1038,24 +1072,26 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
}
/* v1 offset per ee */
-static int pmic_arb_offset_v1(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
- enum pmic_arb_channel ch_type)
+static int pmic_arb_offset_v1(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
+ enum pmic_arb_channel ch_type)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return 0x800 + 0x80 * pmic_arb->channel;
}
-static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
+static u16 pmic_arb_find_apid(struct spmi_pmic_arb_bus *bus, u16 ppid)
{
- struct apid_data *apidd = &pmic_arb->apid_data[pmic_arb->last_apid];
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
+ struct apid_data *apidd = &bus->apid_data[bus->last_apid];
u32 regval, offset;
u16 id, apid;
- for (apid = pmic_arb->last_apid; ; apid++, apidd++) {
+ for (apid = bus->last_apid; ; apid++, apidd++) {
offset = pmic_arb->ver_ops->apid_map_offset(apid);
if (offset >= pmic_arb->core_size)
break;
- regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb,
+ regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(bus,
apid));
apidd->irq_ee = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
apidd->write_ee = apidd->irq_ee;
@@ -1065,14 +1101,14 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
continue;
id = (regval >> 8) & PMIC_ARB_PPID_MASK;
- pmic_arb->ppid_to_apid[id] = apid | PMIC_ARB_APID_VALID;
+ bus->ppid_to_apid[id] = apid | PMIC_ARB_APID_VALID;
apidd->ppid = id;
if (id == ppid) {
apid |= PMIC_ARB_APID_VALID;
break;
}
}
- pmic_arb->last_apid = apid & ~PMIC_ARB_APID_VALID;
+ bus->last_apid = apid & ~PMIC_ARB_APID_VALID;
return apid;
}
@@ -1104,21 +1140,22 @@ static int pmic_arb_get_core_resources_v2(struct platform_device *pdev,
return pmic_arb_get_obsrvr_chnls_v2(pdev);
}
-static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u16 ppid)
+static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb_bus *bus, u16 ppid)
{
u16 apid_valid;
- apid_valid = pmic_arb->ppid_to_apid[ppid];
+ apid_valid = bus->ppid_to_apid[ppid];
if (!(apid_valid & PMIC_ARB_APID_VALID))
- apid_valid = pmic_arb_find_apid(pmic_arb, ppid);
+ apid_valid = pmic_arb_find_apid(bus, ppid);
if (!(apid_valid & PMIC_ARB_APID_VALID))
return -ENODEV;
return apid_valid & ~PMIC_ARB_APID_VALID;
}
-static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
+static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb_bus *bus)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
struct apid_data *apidd;
struct apid_data *prev_apidd;
u16 i, apid, ppid, apid_max;
@@ -1140,9 +1177,9 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
* where N = number of APIDs supported by the primary bus and
* M = number of APIDs supported by the secondary bus
*/
- apidd = &pmic_arb->apid_data[pmic_arb->base_apid];
- apid_max = pmic_arb->base_apid + pmic_arb->apid_count;
- for (i = pmic_arb->base_apid; i < apid_max; i++, apidd++) {
+ apidd = &bus->apid_data[bus->base_apid];
+ apid_max = bus->base_apid + bus->apid_count;
+ for (i = bus->base_apid; i < apid_max; i++, apidd++) {
offset = pmic_arb->ver_ops->apid_map_offset(i);
if (offset >= pmic_arb->core_size)
break;
@@ -1153,19 +1190,18 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
ppid = (regval >> 8) & PMIC_ARB_PPID_MASK;
is_irq_ee = PMIC_ARB_CHAN_IS_IRQ_OWNER(regval);
- regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb,
- i));
+ regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(bus, i));
apidd->write_ee = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
apidd->irq_ee = is_irq_ee ? apidd->write_ee : INVALID_EE;
- valid = pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID;
- apid = pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
- prev_apidd = &pmic_arb->apid_data[apid];
+ valid = bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID;
+ apid = bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
+ prev_apidd = &bus->apid_data[apid];
if (!valid || apidd->write_ee == pmic_arb->ee) {
/* First PPID mapping or one for this EE */
- pmic_arb->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
+ bus->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
} else if (valid && is_irq_ee &&
prev_apidd->write_ee == pmic_arb->ee) {
/*
@@ -1176,42 +1212,43 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
}
apidd->ppid = ppid;
- pmic_arb->last_apid = i;
+ bus->last_apid = i;
}
/* Dump the mapping table for debug purposes. */
- dev_dbg(&pmic_arb->spmic->dev, "PPID APID Write-EE IRQ-EE\n");
+ dev_dbg(&bus->spmic->dev, "PPID APID Write-EE IRQ-EE\n");
for (ppid = 0; ppid < PMIC_ARB_MAX_PPID; ppid++) {
- apid = pmic_arb->ppid_to_apid[ppid];
+ apid = bus->ppid_to_apid[ppid];
if (apid & PMIC_ARB_APID_VALID) {
apid &= ~PMIC_ARB_APID_VALID;
- apidd = &pmic_arb->apid_data[apid];
- dev_dbg(&pmic_arb->spmic->dev, "%#03X %3u %2u %2u\n",
- ppid, apid, apidd->write_ee, apidd->irq_ee);
+ apidd = &bus->apid_data[apid];
+ dev_dbg(&bus->spmic->dev, "%#03X %3u %2u %2u\n",
+ ppid, apid, apidd->write_ee, apidd->irq_ee);
}
}
return 0;
}
-static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb *pmic_arb, u16 ppid)
+static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb_bus *bus, u16 ppid)
{
- if (!(pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID))
+ if (!(bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID))
return -ENODEV;
- return pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
+ return bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
}
/* v2 offset per ppid and per ee */
-static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
- enum pmic_arb_channel ch_type)
+static int pmic_arb_offset_v2(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
+ enum pmic_arb_channel ch_type)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u16 apid;
u16 ppid;
int rc;
ppid = sid << 8 | ((addr >> 8) & 0xFF);
- rc = pmic_arb_ppid_to_apid_v2(pmic_arb, ppid);
+ rc = pmic_arb_ppid_to_apid_v2(bus, ppid);
if (rc < 0)
return rc;
@@ -1219,33 +1256,34 @@ static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
return 0x1000 * pmic_arb->ee + 0x8000 * apid;
}
-static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
+static int pmic_arb_init_apid_v5(struct spmi_pmic_arb_bus *bus, int index)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
int ret;
if (index) {
- dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
+ dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
index);
return -EINVAL;
}
- pmic_arb->base_apid = 0;
- pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ bus->base_apid = 0;
+ bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
PMIC_ARB_FEATURES_PERIPH_MASK;
- if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
- dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
- pmic_arb->base_apid + pmic_arb->apid_count);
+ if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) {
+ dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n",
+ bus->base_apid + bus->apid_count);
return -EINVAL;
}
- ret = pmic_arb_init_apid_min_max(pmic_arb);
+ ret = pmic_arb_init_apid_min_max(bus);
if (ret)
return ret;
- ret = pmic_arb_read_apid_map_v5(pmic_arb);
+ ret = pmic_arb_read_apid_map_v5(bus);
if (ret) {
- dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
+ dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
ret);
return ret;
}
@@ -1257,15 +1295,16 @@ static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
* v5 offset per ee and per apid for observer channels and per apid for
* read/write channels.
*/
-static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
- enum pmic_arb_channel ch_type)
+static int pmic_arb_offset_v5(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
+ enum pmic_arb_channel ch_type)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u16 apid;
int rc;
u32 offset = 0;
u16 ppid = (sid << 8) | (addr >> 8);
- rc = pmic_arb_ppid_to_apid_v5(pmic_arb, ppid);
+ rc = pmic_arb_ppid_to_apid_v5(bus, ppid);
if (rc < 0)
return rc;
@@ -1275,8 +1314,8 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
offset = 0x10000 * pmic_arb->ee + 0x80 * apid;
break;
case PMIC_ARB_CHANNEL_RW:
- if (pmic_arb->apid_data[apid].write_ee != pmic_arb->ee) {
- dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
+ if (bus->apid_data[apid].write_ee != pmic_arb->ee) {
+ dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
sid, addr);
return -EPERM;
}
@@ -1303,38 +1342,39 @@ static int pmic_arb_get_core_resources_v7(struct platform_device *pdev,
* Only v7 supports 2 buses. Each bus will get a different apid count, read
* from different registers.
*/
-static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
+static int pmic_arb_init_apid_v7(struct spmi_pmic_arb_bus *bus, int index)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
int ret;
if (index == 0) {
- pmic_arb->base_apid = 0;
- pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ bus->base_apid = 0;
+ bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
PMIC_ARB_FEATURES_PERIPH_MASK;
} else if (index == 1) {
- pmic_arb->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
+ bus->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
PMIC_ARB_FEATURES_PERIPH_MASK;
- pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
+ bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
PMIC_ARB_FEATURES_PERIPH_MASK;
} else {
- dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
- index);
+ dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
+ bus->id);
return -EINVAL;
}
- if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
- dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
- pmic_arb->base_apid + pmic_arb->apid_count);
+ if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) {
+ dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n",
+ bus->base_apid + bus->apid_count);
return -EINVAL;
}
- ret = pmic_arb_init_apid_min_max(pmic_arb);
+ ret = pmic_arb_init_apid_min_max(bus);
if (ret)
return ret;
- ret = pmic_arb_read_apid_map_v5(pmic_arb);
+ ret = pmic_arb_read_apid_map_v5(bus);
if (ret) {
- dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
+ dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
ret);
return ret;
}
@@ -1346,15 +1386,16 @@ static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
* v7 offset per ee and per apid for observer channels and per apid for
* read/write channels.
*/
-static int pmic_arb_offset_v7(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
- enum pmic_arb_channel ch_type)
+static int pmic_arb_offset_v7(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
+ enum pmic_arb_channel ch_type)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
u16 apid;
int rc;
u32 offset = 0;
u16 ppid = (sid << 8) | (addr >> 8);
- rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid);
+ rc = pmic_arb->ver_ops->ppid_to_apid(bus, ppid);
if (rc < 0)
return rc;
@@ -1364,8 +1405,8 @@ static int pmic_arb_offset_v7(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
offset = 0x8000 * pmic_arb->ee + 0x20 * apid;
break;
case PMIC_ARB_CHANNEL_RW:
- if (pmic_arb->apid_data[apid].write_ee != pmic_arb->ee) {
- dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
+ if (bus->apid_data[apid].write_ee != pmic_arb->ee) {
+ dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
sid, addr);
return -EPERM;
}
@@ -1387,104 +1428,110 @@ static u32 pmic_arb_fmt_cmd_v2(u8 opc, u8 sid, u16 addr, u8 bc)
}
static void __iomem *
-pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
+pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
{
- return pmic_arb->intr + 0x20 * m + 0x4 * n;
+ return bus->intr + 0x20 * m + 0x4 * n;
}
static void __iomem *
-pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
+pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
{
- return pmic_arb->intr + 0x100000 + 0x1000 * m + 0x4 * n;
+ return bus->intr + 0x100000 + 0x1000 * m + 0x4 * n;
}
static void __iomem *
-pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
+pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
{
- return pmic_arb->intr + 0x200000 + 0x1000 * m + 0x4 * n;
+ return bus->intr + 0x200000 + 0x1000 * m + 0x4 * n;
}
static void __iomem *
-pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
+pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
{
- return pmic_arb->intr + 0x10000 * m + 0x4 * n;
+ return bus->intr + 0x10000 * m + 0x4 * n;
}
static void __iomem *
-pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
+pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
{
- return pmic_arb->intr + 0x1000 * m + 0x4 * n;
+ return bus->intr + 0x1000 * m + 0x4 * n;
}
static void __iomem *
-pmic_arb_acc_enable_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_acc_enable_v1(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0x200 + 0x4 * n;
+ return bus->intr + 0x200 + 0x4 * n;
}
static void __iomem *
-pmic_arb_acc_enable_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_acc_enable_v2(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0x1000 * n;
+ return bus->intr + 0x1000 * n;
}
static void __iomem *
-pmic_arb_acc_enable_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_acc_enable_v5(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x100 + 0x10000 * n;
}
static void __iomem *
-pmic_arb_acc_enable_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_acc_enable_v7(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x100 + 0x1000 * n;
}
static void __iomem *
-pmic_arb_irq_status_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_status_v1(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0x600 + 0x4 * n;
+ return bus->intr + 0x600 + 0x4 * n;
}
static void __iomem *
-pmic_arb_irq_status_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_status_v2(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0x4 + 0x1000 * n;
+ return bus->intr + 0x4 + 0x1000 * n;
}
static void __iomem *
-pmic_arb_irq_status_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_status_v5(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x104 + 0x10000 * n;
}
static void __iomem *
-pmic_arb_irq_status_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_status_v7(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x104 + 0x1000 * n;
}
static void __iomem *
-pmic_arb_irq_clear_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_clear_v1(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0xA00 + 0x4 * n;
+ return bus->intr + 0xA00 + 0x4 * n;
}
static void __iomem *
-pmic_arb_irq_clear_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_clear_v2(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->intr + 0x8 + 0x1000 * n;
+ return bus->intr + 0x8 + 0x1000 * n;
}
static void __iomem *
-pmic_arb_irq_clear_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_clear_v5(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x108 + 0x10000 * n;
}
static void __iomem *
-pmic_arb_irq_clear_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_irq_clear_v7(struct spmi_pmic_arb_bus *bus, u16 n)
{
+ struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
return pmic_arb->wr_base + 0x108 + 0x1000 * n;
}
@@ -1504,9 +1551,9 @@ static u32 pmic_arb_apid_map_offset_v7(u16 n)
}
static void __iomem *
-pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_apid_owner_v2(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->cnfg + 0x700 + 0x4 * n;
+ return bus->cnfg + 0x700 + 0x4 * n;
}
/*
@@ -1515,9 +1562,9 @@ pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
* 0.
*/
static void __iomem *
-pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
+pmic_arb_apid_owner_v7(struct spmi_pmic_arb_bus *bus, u16 n)
{
- return pmic_arb->cnfg + 0x4 * (n - pmic_arb->base_apid);
+ return bus->cnfg + 0x4 * (n - bus->base_apid);
}
static const struct pmic_arb_ver_ops pmic_arb_v1 = {
@@ -1607,29 +1654,159 @@ static const struct irq_domain_ops pmic_arb_irq_domain_ops = {
.translate = qpnpint_irq_domain_translate,
};
+static int spmi_pmic_arb_bus_init(struct platform_device *pdev,
+ struct device_node *node,
+ struct spmi_pmic_arb *pmic_arb)
+{
+ int bus_index = pmic_arb->buses_available;
+ struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[bus_index];
+ struct device *dev = &pdev->dev;
+ struct spmi_controller *ctrl;
+ void __iomem *intr;
+ void __iomem *cnfg;
+ int index, ret;
+ u32 irq;
+
+ ctrl = devm_spmi_controller_alloc(dev, sizeof(*ctrl));
+ if (IS_ERR(ctrl))
+ return PTR_ERR(ctrl);
+
+ ctrl->cmd = pmic_arb_cmd;
+ ctrl->read_cmd = pmic_arb_read_cmd;
+ ctrl->write_cmd = pmic_arb_write_cmd;
+
+ bus = spmi_controller_get_drvdata(ctrl);
+ bus->spmic = ctrl;
+
+ bus->ppid_to_apid = devm_kcalloc(dev, PMIC_ARB_MAX_PPID,
+ sizeof(*bus->ppid_to_apid),
+ GFP_KERNEL);
+ if (!bus->ppid_to_apid)
+ return -ENOMEM;
+
+ bus->apid_data = devm_kcalloc(dev, pmic_arb->max_periphs,
+ sizeof(*bus->apid_data),
+ GFP_KERNEL);
+ if (!bus->apid_data)
+ return -ENOMEM;
+
+ index = of_property_match_string(node, "reg-names", "cnfg");
+ if (index < 0) {
+ dev_err(dev, "cnfg reg region missing");
+ return -EINVAL;
+ }
+
+ cnfg = devm_of_iomap(dev, node, index, NULL);
+ if (IS_ERR(cnfg))
+ return PTR_ERR(cnfg);
+
+ index = of_property_match_string(node, "reg-names", "intr");
+ if (index < 0) {
+ dev_err(dev, "intr reg region missing");
+ return -EINVAL;
+ }
+
+ intr = devm_of_iomap(dev, node, index, NULL);
+ if (IS_ERR(intr))
+ return PTR_ERR(intr);
+
+ irq = of_irq_get_byname(node, "periph_irq");
+ if (irq < 0)
+ return irq;
+
+ bus->pmic_arb = pmic_arb;
+ bus->intr = intr;
+ bus->cnfg = cnfg;
+ bus->irq = irq;
+ bus->id = bus_index;
+
+ ret = pmic_arb->ver_ops->init_apid(bus, bus_index);
+ if (ret)
+ return ret;
+
+ dev_dbg(&pdev->dev, "adding irq domain for bus %d\n", bus_index);
+
+ bus->domain = irq_domain_add_tree(dev->of_node,
+ &pmic_arb_irq_domain_ops, bus);
+ if (!bus->domain) {
+ dev_err(&pdev->dev, "unable to create irq_domain\n");
+ return -ENOMEM;
+ }
+
+ irq_set_chained_handler_and_data(bus->irq,
+ pmic_arb_chained_irq, bus);
+
+ bus->spmic->dev.of_node = node;
+ dev_set_name(&bus->spmic->dev, "spmi-%d", bus_index);
+
+ ret = devm_spmi_controller_add(dev, bus->spmic);
+ if (ret)
+ return ret;
+
+ pmic_arb->buses_available++;
+
+ return 0;
+}
+
+static int spmi_pmic_arb_register_buses(struct spmi_pmic_arb *pmic_arb,
+ struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *node = dev->of_node;
+ struct device_node *child;
+ int ret;
+
+ /* legacy mode doesn't provide child node for the bus */
+ if (of_device_is_compatible(node, "qcom,spmi-pmic-arb"))
+ return spmi_pmic_arb_bus_init(pdev, node, pmic_arb);
+
+ for_each_available_child_of_node(node, child) {
+ if (of_node_name_eq(child, "spmi")) {
+ ret = spmi_pmic_arb_bus_init(pdev, child, pmic_arb);
+ if (ret)
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+static void spmi_pmic_arb_deregister_buses(struct spmi_pmic_arb *pmic_arb)
+{
+ int i;
+
+ for (i = 0; i < PMIC_ARB_MAX_BUSES; i++) {
+ struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[i];
+
+ irq_set_chained_handler_and_data(bus->irq,
+ NULL, NULL);
+ irq_domain_remove(bus->domain);
+ }
+}
+
static int spmi_pmic_arb_probe(struct platform_device *pdev)
{
struct spmi_pmic_arb *pmic_arb;
- struct spmi_controller *ctrl;
+ struct device *dev = &pdev->dev;
struct resource *res;
void __iomem *core;
u32 channel, ee, hw_ver;
int err;
- ctrl = devm_spmi_controller_alloc(&pdev->dev, sizeof(*pmic_arb));
- if (IS_ERR(ctrl))
- return PTR_ERR(ctrl);
-
- pmic_arb = spmi_controller_get_drvdata(ctrl);
- pmic_arb->spmic = ctrl;
+ pmic_arb = devm_kzalloc(dev, sizeof(*pmic_arb), GFP_KERNEL);
+ if (!pmic_arb)
+ return -ENOMEM;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
- core = devm_ioremap(&ctrl->dev, res->start, resource_size(res));
+ core = devm_ioremap(dev, res->start, resource_size(res));
if (IS_ERR(core))
return PTR_ERR(core);
pmic_arb->core_size = resource_size(res);
+ platform_set_drvdata(pdev, pmic_arb);
+ raw_spin_lock_init(&pmic_arb->lock);
+
hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
if (hw_ver < PMIC_ARB_VERSION_V2_MIN)
@@ -1643,30 +1820,12 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
else
pmic_arb->ver_ops = &pmic_arb_v7;
- dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
- pmic_arb->ver_ops->ver_str, hw_ver);
-
err = pmic_arb->ver_ops->get_core_resources(pdev, core);
if (err)
return err;
- err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
- if (err)
- return err;
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr");
- pmic_arb->intr = devm_ioremap_resource(&ctrl->dev, res);
- if (IS_ERR(pmic_arb->intr))
- return PTR_ERR(pmic_arb->intr);
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cnfg");
- pmic_arb->cnfg = devm_ioremap_resource(&ctrl->dev, res);
- if (IS_ERR(pmic_arb->cnfg))
- return PTR_ERR(pmic_arb->cnfg);
-
- pmic_arb->irq = platform_get_irq_byname(pdev, "periph_irq");
- if (pmic_arb->irq < 0)
- return pmic_arb->irq;
+ dev_info(dev, "PMIC arbiter version %s (0x%x)\n",
+ pmic_arb->ver_ops->ver_str, hw_ver);
err = of_property_read_u32(pdev->dev.of_node, "qcom,channel", &channel);
if (err) {
@@ -1695,46 +1854,19 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
pmic_arb->ee = ee;
- platform_set_drvdata(pdev, ctrl);
- raw_spin_lock_init(&pmic_arb->lock);
-
- ctrl->cmd = pmic_arb_cmd;
- ctrl->read_cmd = pmic_arb_read_cmd;
- ctrl->write_cmd = pmic_arb_write_cmd;
-
- dev_dbg(&pdev->dev, "adding irq domain\n");
- pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node,
- &pmic_arb_irq_domain_ops, pmic_arb);
- if (!pmic_arb->domain) {
- dev_err(&pdev->dev, "unable to create irq_domain\n");
- return -ENOMEM;
- }
-
- irq_set_chained_handler_and_data(pmic_arb->irq, pmic_arb_chained_irq,
- pmic_arb);
- err = spmi_controller_add(ctrl);
- if (err)
- goto err_domain_remove;
-
- return 0;
-
-err_domain_remove:
- irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL);
- irq_domain_remove(pmic_arb->domain);
- return err;
+ return spmi_pmic_arb_register_buses(pmic_arb, pdev);
}
static void spmi_pmic_arb_remove(struct platform_device *pdev)
{
- struct spmi_controller *ctrl = platform_get_drvdata(pdev);
- struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
- spmi_controller_remove(ctrl);
- irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL);
- irq_domain_remove(pmic_arb->domain);
+ struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
+
+ spmi_pmic_arb_deregister_buses(pmic_arb);
}
static const struct of_device_id spmi_pmic_arb_match_table[] = {
{ .compatible = "qcom,spmi-pmic-arb", },
+ { .compatible = "qcom,x1e80100-spmi-pmic-arb", },
{},
};
MODULE_DEVICE_TABLE(of, spmi_pmic_arb_match_table);
--
2.34.1
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-26 19:32 ` Rob Herring
-1 siblings, 0 replies; 34+ messages in thread
From: Rob Herring @ 2024-03-26 19:32 UTC (permalink / raw)
To: Abel Vesa
Cc: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Krzysztof Kozlowski, Conor Dooley, Srini Kandagatla,
Johan Hovold, linux-kernel, linux-arm-kernel, linux-arm-msm,
linux-mediatek, devicetree
On Tue, Mar 26, 2024 at 06:28:15PM +0200, Abel Vesa wrote:
> This RFC prepares for and adds support for 2 buses, which is supported
> in HW starting with version 7. Until now, none of the currently
> supported platforms in upstream have used the second bus. The X1E80100
> platform, on the other hand, needs the second bus for the USB2.0 to work
> as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
> all found on the second bus.
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> Changes in v6:
> - Changed the compatible to platform specific (X1E80100) along with the
> schema. Fixed the spmi buses unit addresses and added the empty ranges
> property. Added missing properties to the spmi buses and the
> "unevaluatedProperties: false".
> - Deprecated the "qcom,bus-id" in the legacy schema.
> - Changed the driver to check for legacy compatible first
> - Link to v5: https://lore.kernel.org/r/20240221-spmi-multi-master-support-v5-0-3255ca413a0b@linaro.org
Where are Krzysztof's Reviewed-by tags?
Rob
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
@ 2024-03-26 19:32 ` Rob Herring
0 siblings, 0 replies; 34+ messages in thread
From: Rob Herring @ 2024-03-26 19:32 UTC (permalink / raw)
To: Abel Vesa
Cc: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Krzysztof Kozlowski, Conor Dooley, Srini Kandagatla,
Johan Hovold, linux-kernel, linux-arm-kernel, linux-arm-msm,
linux-mediatek, devicetree
On Tue, Mar 26, 2024 at 06:28:15PM +0200, Abel Vesa wrote:
> This RFC prepares for and adds support for 2 buses, which is supported
> in HW starting with version 7. Until now, none of the currently
> supported platforms in upstream have used the second bus. The X1E80100
> platform, on the other hand, needs the second bus for the USB2.0 to work
> as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
> all found on the second bus.
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> Changes in v6:
> - Changed the compatible to platform specific (X1E80100) along with the
> schema. Fixed the spmi buses unit addresses and added the empty ranges
> property. Added missing properties to the spmi buses and the
> "unevaluatedProperties: false".
> - Deprecated the "qcom,bus-id" in the legacy schema.
> - Changed the driver to check for legacy compatible first
> - Link to v5: https://lore.kernel.org/r/20240221-spmi-multi-master-support-v5-0-3255ca413a0b@linaro.org
Where are Krzysztof's Reviewed-by tags?
Rob
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
2024-03-26 19:32 ` Rob Herring
@ 2024-03-26 19:57 ` Abel Vesa
-1 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 19:57 UTC (permalink / raw)
To: Rob Herring
Cc: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Krzysztof Kozlowski, Conor Dooley, Srini Kandagatla,
Johan Hovold, linux-kernel, linux-arm-kernel, linux-arm-msm,
linux-mediatek, devicetree
On 24-03-26 14:32:03, Rob Herring wrote:
> On Tue, Mar 26, 2024 at 06:28:15PM +0200, Abel Vesa wrote:
> > This RFC prepares for and adds support for 2 buses, which is supported
> > in HW starting with version 7. Until now, none of the currently
> > supported platforms in upstream have used the second bus. The X1E80100
> > platform, on the other hand, needs the second bus for the USB2.0 to work
> > as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
> > all found on the second bus.
> >
> > Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> > ---
> > Changes in v6:
> > - Changed the compatible to platform specific (X1E80100) along with the
> > schema. Fixed the spmi buses unit addresses and added the empty ranges
> > property. Added missing properties to the spmi buses and the
> > "unevaluatedProperties: false".
> > - Deprecated the "qcom,bus-id" in the legacy schema.
> > - Changed the driver to check for legacy compatible first
> > - Link to v5: https://lore.kernel.org/r/20240221-spmi-multi-master-support-v5-0-3255ca413a0b@linaro.org
>
> Where are Krzysztof's Reviewed-by tags?
Urgh, did "b4 send --resend" which only sent the v5 as it was before the
Reviewed-by tags have been picked up.
My bad.
I'll send a v6 with the tags appended.
>
> Rob
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
@ 2024-03-26 19:57 ` Abel Vesa
0 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-26 19:57 UTC (permalink / raw)
To: Rob Herring
Cc: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Krzysztof Kozlowski, Conor Dooley, Srini Kandagatla,
Johan Hovold, linux-kernel, linux-arm-kernel, linux-arm-msm,
linux-mediatek, devicetree
On 24-03-26 14:32:03, Rob Herring wrote:
> On Tue, Mar 26, 2024 at 06:28:15PM +0200, Abel Vesa wrote:
> > This RFC prepares for and adds support for 2 buses, which is supported
> > in HW starting with version 7. Until now, none of the currently
> > supported platforms in upstream have used the second bus. The X1E80100
> > platform, on the other hand, needs the second bus for the USB2.0 to work
> > as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
> > all found on the second bus.
> >
> > Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> > ---
> > Changes in v6:
> > - Changed the compatible to platform specific (X1E80100) along with the
> > schema. Fixed the spmi buses unit addresses and added the empty ranges
> > property. Added missing properties to the spmi buses and the
> > "unevaluatedProperties: false".
> > - Deprecated the "qcom,bus-id" in the legacy schema.
> > - Changed the driver to check for legacy compatible first
> > - Link to v5: https://lore.kernel.org/r/20240221-spmi-multi-master-support-v5-0-3255ca413a0b@linaro.org
>
> Where are Krzysztof's Reviewed-by tags?
Urgh, did "b4 send --resend" which only sent the v5 as it was before the
Reviewed-by tags have been picked up.
My bad.
I'll send a v6 with the tags appended.
>
> Rob
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-27 9:23 ` Krzysztof Kozlowski
-1 siblings, 0 replies; 34+ messages in thread
From: Krzysztof Kozlowski @ 2024-03-27 9:23 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, Neil Armstrong,
AngeloGioacchino Del Regno, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
On 26/03/2024 17:28, Abel Vesa wrote:
> This RFC prepares for and adds support for 2 buses, which is supported
> in HW starting with version 7. Until now, none of the currently
> supported platforms in upstream have used the second bus. The X1E80100
> platform, on the other hand, needs the second bus for the USB2.0 to work
> as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
> all found on the second bus.
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> Changes in v6:
> - Changed the compatible to platform specific (X1E80100) along with the
> schema. Fixed the spmi buses unit addresses and added the empty ranges
Why resending after few days? And why without reviews?
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
@ 2024-03-27 9:23 ` Krzysztof Kozlowski
0 siblings, 0 replies; 34+ messages in thread
From: Krzysztof Kozlowski @ 2024-03-27 9:23 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, Neil Armstrong,
AngeloGioacchino Del Regno, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
On 26/03/2024 17:28, Abel Vesa wrote:
> This RFC prepares for and adds support for 2 buses, which is supported
> in HW starting with version 7. Until now, none of the currently
> supported platforms in upstream have used the second bus. The X1E80100
> platform, on the other hand, needs the second bus for the USB2.0 to work
> as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
> all found on the second bus.
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> Changes in v6:
> - Changed the compatible to platform specific (X1E80100) along with the
> schema. Fixed the spmi buses unit addresses and added the empty ranges
Why resending after few days? And why without reviews?
Best regards,
Krzysztof
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
2024-03-27 9:23 ` Krzysztof Kozlowski
@ 2024-03-27 10:37 ` Abel Vesa
-1 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-27 10:37 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Srini Kandagatla,
Johan Hovold, linux-kernel, linux-arm-kernel, linux-arm-msm,
linux-mediatek, devicetree
On 24-03-27 10:23:51, Krzysztof Kozlowski wrote:
> On 26/03/2024 17:28, Abel Vesa wrote:
> > This RFC prepares for and adds support for 2 buses, which is supported
> > in HW starting with version 7. Until now, none of the currently
> > supported platforms in upstream have used the second bus. The X1E80100
> > platform, on the other hand, needs the second bus for the USB2.0 to work
> > as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
> > all found on the second bus.
> >
> > Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> > ---
> > Changes in v6:
> > - Changed the compatible to platform specific (X1E80100) along with the
> > schema. Fixed the spmi buses unit addresses and added the empty ranges
>
> Why resending after few days? And why without reviews?
>
If you are referring to the initial v6 patchset, it was sent more than a
month ago.
https://lore.kernel.org/all/20240222-spmi-multi-master-support-v6-0-bc34ea9561da@linaro.org/
> Best regards,
> Krzysztof
>
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
@ 2024-03-27 10:37 ` Abel Vesa
0 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-27 10:37 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Srini Kandagatla,
Johan Hovold, linux-kernel, linux-arm-kernel, linux-arm-msm,
linux-mediatek, devicetree
On 24-03-27 10:23:51, Krzysztof Kozlowski wrote:
> On 26/03/2024 17:28, Abel Vesa wrote:
> > This RFC prepares for and adds support for 2 buses, which is supported
> > in HW starting with version 7. Until now, none of the currently
> > supported platforms in upstream have used the second bus. The X1E80100
> > platform, on the other hand, needs the second bus for the USB2.0 to work
> > as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
> > all found on the second bus.
> >
> > Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> > ---
> > Changes in v6:
> > - Changed the compatible to platform specific (X1E80100) along with the
> > schema. Fixed the spmi buses unit addresses and added the empty ranges
>
> Why resending after few days? And why without reviews?
>
If you are referring to the initial v6 patchset, it was sent more than a
month ago.
https://lore.kernel.org/all/20240222-spmi-multi-master-support-v6-0-bc34ea9561da@linaro.org/
> Best regards,
> Krzysztof
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
2024-03-27 10:37 ` Abel Vesa
@ 2024-03-27 10:44 ` Krzysztof Kozlowski
-1 siblings, 0 replies; 34+ messages in thread
From: Krzysztof Kozlowski @ 2024-03-27 10:44 UTC (permalink / raw)
To: Abel Vesa
Cc: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Srini Kandagatla,
Johan Hovold, linux-kernel, linux-arm-kernel, linux-arm-msm,
linux-mediatek, devicetree
On 27/03/2024 11:37, Abel Vesa wrote:
> On 24-03-27 10:23:51, Krzysztof Kozlowski wrote:
>> On 26/03/2024 17:28, Abel Vesa wrote:
>>> This RFC prepares for and adds support for 2 buses, which is supported
>>> in HW starting with version 7. Until now, none of the currently
>>> supported platforms in upstream have used the second bus. The X1E80100
>>> platform, on the other hand, needs the second bus for the USB2.0 to work
>>> as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
>>> all found on the second bus.
>>>
>>> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
>>> ---
>>> Changes in v6:
>>> - Changed the compatible to platform specific (X1E80100) along with the
>>> schema. Fixed the spmi buses unit addresses and added the empty ranges
>>
>> Why resending after few days? And why without reviews?
>>
>
> If you are referring to the initial v6 patchset, it was sent more than a
> month ago.
>
> https://lore.kernel.org/all/20240222-spmi-multi-master-support-v6-0-bc34ea9561da@linaro.org/
Ykes, you are right.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
@ 2024-03-27 10:44 ` Krzysztof Kozlowski
0 siblings, 0 replies; 34+ messages in thread
From: Krzysztof Kozlowski @ 2024-03-27 10:44 UTC (permalink / raw)
To: Abel Vesa
Cc: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, Neil Armstrong, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Srini Kandagatla,
Johan Hovold, linux-kernel, linux-arm-kernel, linux-arm-msm,
linux-mediatek, devicetree
On 27/03/2024 11:37, Abel Vesa wrote:
> On 24-03-27 10:23:51, Krzysztof Kozlowski wrote:
>> On 26/03/2024 17:28, Abel Vesa wrote:
>>> This RFC prepares for and adds support for 2 buses, which is supported
>>> in HW starting with version 7. Until now, none of the currently
>>> supported platforms in upstream have used the second bus. The X1E80100
>>> platform, on the other hand, needs the second bus for the USB2.0 to work
>>> as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
>>> all found on the second bus.
>>>
>>> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
>>> ---
>>> Changes in v6:
>>> - Changed the compatible to platform specific (X1E80100) along with the
>>> schema. Fixed the spmi buses unit addresses and added the empty ranges
>>
>> Why resending after few days? And why without reviews?
>>
>
> If you are referring to the initial v6 patchset, it was sent more than a
> month ago.
>
> https://lore.kernel.org/all/20240222-spmi-multi-master-support-v6-0-bc34ea9561da@linaro.org/
Ykes, you are right.
Best regards,
Krzysztof
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 1/5] dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-27 18:40 ` Krzysztof Kozlowski
-1 siblings, 0 replies; 34+ messages in thread
From: Krzysztof Kozlowski @ 2024-03-27 18:40 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, Neil Armstrong,
AngeloGioacchino Del Regno, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
On 26/03/2024 17:28, Abel Vesa wrote:
> + qcom,channel:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + minimum: 0
> + maximum: 5
> + description: >
> + which of the PMIC Arb provided channels to use for accesses
> +
> +patternProperties:
> + "spmi@[a-f0-9]+$":
Missing '^' in the pattern. I did not notice it earlier because only
since ~2 weeks I have lei filter for ABI based on node names. And your
driver created ABI based on node names, so this must be fixed. Sorry. :(
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 1/5] dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
@ 2024-03-27 18:40 ` Krzysztof Kozlowski
0 siblings, 0 replies; 34+ messages in thread
From: Krzysztof Kozlowski @ 2024-03-27 18:40 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, Neil Armstrong,
AngeloGioacchino Del Regno, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
On 26/03/2024 17:28, Abel Vesa wrote:
> + qcom,channel:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + minimum: 0
> + maximum: 5
> + description: >
> + which of the PMIC Arb provided channels to use for accesses
> +
> +patternProperties:
> + "spmi@[a-f0-9]+$":
Missing '^' in the pattern. I did not notice it earlier because only
since ~2 weeks I have lei filter for ABI based on node names. And your
driver created ABI based on node names, so this must be fixed. Sorry. :(
Best regards,
Krzysztof
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 3/5] spmi: pmic-arb: Make the APID init a version operation
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-28 8:51 ` Neil Armstrong
-1 siblings, 0 replies; 34+ messages in thread
From: Neil Armstrong @ 2024-03-28 8:51 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
On 26/03/2024 17:28, Abel Vesa wrote:
> Rather than using conditionals in probe function, add the APID init
> as a version specific operation. Due to v7, which supports multiple
> buses, pass on the bus index to be used for sorting out the apid base
> and count.
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> drivers/spmi/spmi-pmic-arb.c | 199 +++++++++++++++++++++++++++----------------
> 1 file changed, 124 insertions(+), 75 deletions(-)
>
> diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
> index 9ed1180fe31f..38fed8a585fe 100644
> --- a/drivers/spmi/spmi-pmic-arb.c
> +++ b/drivers/spmi/spmi-pmic-arb.c
> @@ -183,6 +183,7 @@ struct spmi_pmic_arb {
> * struct pmic_arb_ver_ops - version dependent functionality.
> *
> * @ver_str: version string.
> + * @init_apid: finds the apid base and count
> * @ppid_to_apid: finds the apid for a given ppid.
> * @non_data_cmd: on v1 issues an spmi non-data command.
> * on v2 no HW support, returns -EOPNOTSUPP.
> @@ -202,6 +203,7 @@ struct spmi_pmic_arb {
> */
> struct pmic_arb_ver_ops {
> const char *ver_str;
> + int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
> int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
> /* spmi commands (read_cmd, write_cmd, cmd) functionality */
> int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> @@ -942,6 +944,38 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
> return 0;
> }
>
> +static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
> +{
> + /*
> + * Initialize max_apid/min_apid to the opposite bounds, during
> + * the irq domain translation, we are sure to update these
> + */
> + pmic_arb->max_apid = 0;
> + pmic_arb->min_apid = pmic_arb->max_periphs - 1;
> +
> + return 0;
> +}
> +
> +static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
> +{
> + u32 *mapping_table;
> +
> + if (index) {
> + dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> + index);
> + return -EINVAL;
> + }
> +
> + mapping_table = devm_kcalloc(&pmic_arb->spmic->dev, pmic_arb->max_periphs,
> + sizeof(*mapping_table), GFP_KERNEL);
> + if (!mapping_table)
> + return -ENOMEM;
> +
> + pmic_arb->mapping_table = mapping_table;
Can you specify in the spmi_pmic_arb->mapping_table struct documentation the mapping_table
is only used in v1 ? or even better rename it to mapping_table_v1
> +
> + return pmic_arb_init_apid_min_max(pmic_arb);
> +}
> +
> static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> {
> u32 *mapping_table = pmic_arb->mapping_table;
> @@ -1144,6 +1178,40 @@ static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> return 0x1000 * pmic_arb->ee + 0x8000 * apid;
> }
>
> +static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
> +{
> + int ret;
> +
> + if (index) {
> + dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> + index);
> + return -EINVAL;
> + }
> +
> + pmic_arb->base_apid = 0;
> + pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + PMIC_ARB_FEATURES_PERIPH_MASK;
> +
> + if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
> + dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
> + pmic_arb->base_apid + pmic_arb->apid_count);
> + return -EINVAL;
> + }
> +
> + ret = pmic_arb_init_apid_min_max(pmic_arb);
> + if (ret)
> + return ret;
> +
> + ret = pmic_arb_read_apid_map_v5(pmic_arb);
> + if (ret) {
> + dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> + ret);
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> /*
> * v5 offset per ee and per apid for observer channels and per apid for
> * read/write channels.
> @@ -1178,6 +1246,49 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> return offset;
> }
>
> +/*
> + * Only v7 supports 2 buses. Each bus will get a different apid count, read
> + * from different registers.
> + */
> +static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
> +{
> + int ret;
> +
> + if (index == 0) {
> + pmic_arb->base_apid = 0;
> + pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + PMIC_ARB_FEATURES_PERIPH_MASK;
> + } else if (index == 1) {
> + pmic_arb->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + PMIC_ARB_FEATURES_PERIPH_MASK;
> + pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
> + PMIC_ARB_FEATURES_PERIPH_MASK;
> + } else {
> + dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> + index);
> + return -EINVAL;
> + }
> +
> + if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
> + dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
> + pmic_arb->base_apid + pmic_arb->apid_count);
> + return -EINVAL;
> + }
> +
> + ret = pmic_arb_init_apid_min_max(pmic_arb);
> + if (ret)
> + return ret;
> +
> + ret = pmic_arb_read_apid_map_v5(pmic_arb);
> + if (ret) {
> + dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> + ret);
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> /*
> * v7 offset per ee and per apid for observer channels and per apid for
> * read/write channels.
> @@ -1358,6 +1469,7 @@ pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
>
> static const struct pmic_arb_ver_ops pmic_arb_v1 = {
> .ver_str = "v1",
> + .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v1,
> .non_data_cmd = pmic_arb_non_data_cmd_v1,
> .offset = pmic_arb_offset_v1,
> @@ -1372,6 +1484,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v1 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v2 = {
> .ver_str = "v2",
> + .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v2,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> .offset = pmic_arb_offset_v2,
> @@ -1386,6 +1499,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v2 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v3 = {
> .ver_str = "v3",
> + .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v2,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> .offset = pmic_arb_offset_v2,
> @@ -1400,6 +1514,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v3 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v5 = {
> .ver_str = "v5",
> + .init_apid = pmic_arb_init_apid_v5,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v5,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> .offset = pmic_arb_offset_v5,
> @@ -1414,6 +1529,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v5 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v7 = {
> .ver_str = "v7",
> + .init_apid = pmic_arb_init_apid_v7,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v5,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> .offset = pmic_arb_offset_v7,
> @@ -1439,7 +1555,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> struct spmi_controller *ctrl;
> struct resource *res;
> void __iomem *core;
> - u32 *mapping_table;
> u32 channel, ee, hw_ver;
> int err;
>
> @@ -1467,12 +1582,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
>
> pmic_arb->core_size = resource_size(res);
>
> - pmic_arb->ppid_to_apid = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PPID,
> - sizeof(*pmic_arb->ppid_to_apid),
> - GFP_KERNEL);
> - if (!pmic_arb->ppid_to_apid)
> - return -ENOMEM;
> -
> hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
>
> if (hw_ver < PMIC_ARB_VERSION_V2_MIN) {
> @@ -1506,58 +1615,17 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> return PTR_ERR(pmic_arb->wr_base);
> }
>
> - pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
> + dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
> + pmic_arb->ver_ops->ver_str, hw_ver);
>
> - if (hw_ver >= PMIC_ARB_VERSION_V7_MIN) {
> + if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
> + pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
> + else
> pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
> - /* Optional property for v7: */
> - of_property_read_u32(pdev->dev.of_node, "qcom,bus-id",
> - &pmic_arb->bus_instance);
> - if (pmic_arb->bus_instance > 1) {
> - dev_err(&pdev->dev, "invalid bus instance (%u) specified\n",
> - pmic_arb->bus_instance);
> - return -EINVAL;
> - }
> -
> - if (pmic_arb->bus_instance == 0) {
> - pmic_arb->base_apid = 0;
> - pmic_arb->apid_count =
> - readl_relaxed(core + PMIC_ARB_FEATURES) &
> - PMIC_ARB_FEATURES_PERIPH_MASK;
> - } else {
> - pmic_arb->base_apid =
> - readl_relaxed(core + PMIC_ARB_FEATURES) &
> - PMIC_ARB_FEATURES_PERIPH_MASK;
> - pmic_arb->apid_count =
> - readl_relaxed(core + PMIC_ARB_FEATURES1) &
> - PMIC_ARB_FEATURES_PERIPH_MASK;
> - }
>
> - if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
> - dev_err(&pdev->dev, "Unsupported APID count %d detected\n",
> - pmic_arb->base_apid + pmic_arb->apid_count);
> - return -EINVAL;
> - }
> - } else if (hw_ver >= PMIC_ARB_VERSION_V5_MIN) {
> - pmic_arb->base_apid = 0;
> - pmic_arb->apid_count = readl_relaxed(core + PMIC_ARB_FEATURES) &
> - PMIC_ARB_FEATURES_PERIPH_MASK;
> -
> - if (pmic_arb->apid_count > pmic_arb->max_periphs) {
> - dev_err(&pdev->dev, "Unsupported APID count %d detected\n",
> - pmic_arb->apid_count);
> - return -EINVAL;
> - }
> - }
> -
> - pmic_arb->apid_data = devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs,
> - sizeof(*pmic_arb->apid_data),
> - GFP_KERNEL);
> - if (!pmic_arb->apid_data)
> - return -ENOMEM;
> -
> - dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
> - pmic_arb->ver_ops->ver_str, hw_ver);
> + err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
> + if (err)
> + return err;
>
> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr");
> pmic_arb->intr = devm_ioremap_resource(&ctrl->dev, res);
> @@ -1599,16 +1667,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> }
>
> pmic_arb->ee = ee;
> - mapping_table = devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs,
> - sizeof(*mapping_table), GFP_KERNEL);
> - if (!mapping_table)
> - return -ENOMEM;
> -
> - pmic_arb->mapping_table = mapping_table;
> - /* Initialize max_apid/min_apid to the opposite bounds, during
> - * the irq domain translation, we are sure to update these */
> - pmic_arb->max_apid = 0;
> - pmic_arb->min_apid = pmic_arb->max_periphs - 1;
>
> platform_set_drvdata(pdev, ctrl);
> raw_spin_lock_init(&pmic_arb->lock);
> @@ -1617,15 +1675,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> ctrl->read_cmd = pmic_arb_read_cmd;
> ctrl->write_cmd = pmic_arb_write_cmd;
>
> - if (hw_ver >= PMIC_ARB_VERSION_V5_MIN) {
> - err = pmic_arb_read_apid_map_v5(pmic_arb);
> - if (err) {
> - dev_err(&pdev->dev, "could not read APID->PPID mapping table, rc= %d\n",
> - err);
> - return err;
> - }
> - }
> -
> dev_dbg(&pdev->dev, "adding irq domain\n");
> pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node,
> &pmic_arb_irq_domain_ops, pmic_arb);
>
With that clarified:
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 3/5] spmi: pmic-arb: Make the APID init a version operation
@ 2024-03-28 8:51 ` Neil Armstrong
0 siblings, 0 replies; 34+ messages in thread
From: Neil Armstrong @ 2024-03-28 8:51 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
On 26/03/2024 17:28, Abel Vesa wrote:
> Rather than using conditionals in probe function, add the APID init
> as a version specific operation. Due to v7, which supports multiple
> buses, pass on the bus index to be used for sorting out the apid base
> and count.
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> drivers/spmi/spmi-pmic-arb.c | 199 +++++++++++++++++++++++++++----------------
> 1 file changed, 124 insertions(+), 75 deletions(-)
>
> diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
> index 9ed1180fe31f..38fed8a585fe 100644
> --- a/drivers/spmi/spmi-pmic-arb.c
> +++ b/drivers/spmi/spmi-pmic-arb.c
> @@ -183,6 +183,7 @@ struct spmi_pmic_arb {
> * struct pmic_arb_ver_ops - version dependent functionality.
> *
> * @ver_str: version string.
> + * @init_apid: finds the apid base and count
> * @ppid_to_apid: finds the apid for a given ppid.
> * @non_data_cmd: on v1 issues an spmi non-data command.
> * on v2 no HW support, returns -EOPNOTSUPP.
> @@ -202,6 +203,7 @@ struct spmi_pmic_arb {
> */
> struct pmic_arb_ver_ops {
> const char *ver_str;
> + int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
> int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
> /* spmi commands (read_cmd, write_cmd, cmd) functionality */
> int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> @@ -942,6 +944,38 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
> return 0;
> }
>
> +static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
> +{
> + /*
> + * Initialize max_apid/min_apid to the opposite bounds, during
> + * the irq domain translation, we are sure to update these
> + */
> + pmic_arb->max_apid = 0;
> + pmic_arb->min_apid = pmic_arb->max_periphs - 1;
> +
> + return 0;
> +}
> +
> +static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
> +{
> + u32 *mapping_table;
> +
> + if (index) {
> + dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> + index);
> + return -EINVAL;
> + }
> +
> + mapping_table = devm_kcalloc(&pmic_arb->spmic->dev, pmic_arb->max_periphs,
> + sizeof(*mapping_table), GFP_KERNEL);
> + if (!mapping_table)
> + return -ENOMEM;
> +
> + pmic_arb->mapping_table = mapping_table;
Can you specify in the spmi_pmic_arb->mapping_table struct documentation the mapping_table
is only used in v1 ? or even better rename it to mapping_table_v1
> +
> + return pmic_arb_init_apid_min_max(pmic_arb);
> +}
> +
> static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> {
> u32 *mapping_table = pmic_arb->mapping_table;
> @@ -1144,6 +1178,40 @@ static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> return 0x1000 * pmic_arb->ee + 0x8000 * apid;
> }
>
> +static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
> +{
> + int ret;
> +
> + if (index) {
> + dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> + index);
> + return -EINVAL;
> + }
> +
> + pmic_arb->base_apid = 0;
> + pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + PMIC_ARB_FEATURES_PERIPH_MASK;
> +
> + if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
> + dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
> + pmic_arb->base_apid + pmic_arb->apid_count);
> + return -EINVAL;
> + }
> +
> + ret = pmic_arb_init_apid_min_max(pmic_arb);
> + if (ret)
> + return ret;
> +
> + ret = pmic_arb_read_apid_map_v5(pmic_arb);
> + if (ret) {
> + dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> + ret);
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> /*
> * v5 offset per ee and per apid for observer channels and per apid for
> * read/write channels.
> @@ -1178,6 +1246,49 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> return offset;
> }
>
> +/*
> + * Only v7 supports 2 buses. Each bus will get a different apid count, read
> + * from different registers.
> + */
> +static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
> +{
> + int ret;
> +
> + if (index == 0) {
> + pmic_arb->base_apid = 0;
> + pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + PMIC_ARB_FEATURES_PERIPH_MASK;
> + } else if (index == 1) {
> + pmic_arb->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + PMIC_ARB_FEATURES_PERIPH_MASK;
> + pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
> + PMIC_ARB_FEATURES_PERIPH_MASK;
> + } else {
> + dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> + index);
> + return -EINVAL;
> + }
> +
> + if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
> + dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
> + pmic_arb->base_apid + pmic_arb->apid_count);
> + return -EINVAL;
> + }
> +
> + ret = pmic_arb_init_apid_min_max(pmic_arb);
> + if (ret)
> + return ret;
> +
> + ret = pmic_arb_read_apid_map_v5(pmic_arb);
> + if (ret) {
> + dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> + ret);
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> /*
> * v7 offset per ee and per apid for observer channels and per apid for
> * read/write channels.
> @@ -1358,6 +1469,7 @@ pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
>
> static const struct pmic_arb_ver_ops pmic_arb_v1 = {
> .ver_str = "v1",
> + .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v1,
> .non_data_cmd = pmic_arb_non_data_cmd_v1,
> .offset = pmic_arb_offset_v1,
> @@ -1372,6 +1484,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v1 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v2 = {
> .ver_str = "v2",
> + .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v2,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> .offset = pmic_arb_offset_v2,
> @@ -1386,6 +1499,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v2 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v3 = {
> .ver_str = "v3",
> + .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v2,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> .offset = pmic_arb_offset_v2,
> @@ -1400,6 +1514,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v3 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v5 = {
> .ver_str = "v5",
> + .init_apid = pmic_arb_init_apid_v5,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v5,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> .offset = pmic_arb_offset_v5,
> @@ -1414,6 +1529,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v5 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v7 = {
> .ver_str = "v7",
> + .init_apid = pmic_arb_init_apid_v7,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v5,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> .offset = pmic_arb_offset_v7,
> @@ -1439,7 +1555,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> struct spmi_controller *ctrl;
> struct resource *res;
> void __iomem *core;
> - u32 *mapping_table;
> u32 channel, ee, hw_ver;
> int err;
>
> @@ -1467,12 +1582,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
>
> pmic_arb->core_size = resource_size(res);
>
> - pmic_arb->ppid_to_apid = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PPID,
> - sizeof(*pmic_arb->ppid_to_apid),
> - GFP_KERNEL);
> - if (!pmic_arb->ppid_to_apid)
> - return -ENOMEM;
> -
> hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
>
> if (hw_ver < PMIC_ARB_VERSION_V2_MIN) {
> @@ -1506,58 +1615,17 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> return PTR_ERR(pmic_arb->wr_base);
> }
>
> - pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
> + dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
> + pmic_arb->ver_ops->ver_str, hw_ver);
>
> - if (hw_ver >= PMIC_ARB_VERSION_V7_MIN) {
> + if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
> + pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
> + else
> pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
> - /* Optional property for v7: */
> - of_property_read_u32(pdev->dev.of_node, "qcom,bus-id",
> - &pmic_arb->bus_instance);
> - if (pmic_arb->bus_instance > 1) {
> - dev_err(&pdev->dev, "invalid bus instance (%u) specified\n",
> - pmic_arb->bus_instance);
> - return -EINVAL;
> - }
> -
> - if (pmic_arb->bus_instance == 0) {
> - pmic_arb->base_apid = 0;
> - pmic_arb->apid_count =
> - readl_relaxed(core + PMIC_ARB_FEATURES) &
> - PMIC_ARB_FEATURES_PERIPH_MASK;
> - } else {
> - pmic_arb->base_apid =
> - readl_relaxed(core + PMIC_ARB_FEATURES) &
> - PMIC_ARB_FEATURES_PERIPH_MASK;
> - pmic_arb->apid_count =
> - readl_relaxed(core + PMIC_ARB_FEATURES1) &
> - PMIC_ARB_FEATURES_PERIPH_MASK;
> - }
>
> - if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
> - dev_err(&pdev->dev, "Unsupported APID count %d detected\n",
> - pmic_arb->base_apid + pmic_arb->apid_count);
> - return -EINVAL;
> - }
> - } else if (hw_ver >= PMIC_ARB_VERSION_V5_MIN) {
> - pmic_arb->base_apid = 0;
> - pmic_arb->apid_count = readl_relaxed(core + PMIC_ARB_FEATURES) &
> - PMIC_ARB_FEATURES_PERIPH_MASK;
> -
> - if (pmic_arb->apid_count > pmic_arb->max_periphs) {
> - dev_err(&pdev->dev, "Unsupported APID count %d detected\n",
> - pmic_arb->apid_count);
> - return -EINVAL;
> - }
> - }
> -
> - pmic_arb->apid_data = devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs,
> - sizeof(*pmic_arb->apid_data),
> - GFP_KERNEL);
> - if (!pmic_arb->apid_data)
> - return -ENOMEM;
> -
> - dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
> - pmic_arb->ver_ops->ver_str, hw_ver);
> + err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
> + if (err)
> + return err;
>
> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr");
> pmic_arb->intr = devm_ioremap_resource(&ctrl->dev, res);
> @@ -1599,16 +1667,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> }
>
> pmic_arb->ee = ee;
> - mapping_table = devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs,
> - sizeof(*mapping_table), GFP_KERNEL);
> - if (!mapping_table)
> - return -ENOMEM;
> -
> - pmic_arb->mapping_table = mapping_table;
> - /* Initialize max_apid/min_apid to the opposite bounds, during
> - * the irq domain translation, we are sure to update these */
> - pmic_arb->max_apid = 0;
> - pmic_arb->min_apid = pmic_arb->max_periphs - 1;
>
> platform_set_drvdata(pdev, ctrl);
> raw_spin_lock_init(&pmic_arb->lock);
> @@ -1617,15 +1675,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> ctrl->read_cmd = pmic_arb_read_cmd;
> ctrl->write_cmd = pmic_arb_write_cmd;
>
> - if (hw_ver >= PMIC_ARB_VERSION_V5_MIN) {
> - err = pmic_arb_read_apid_map_v5(pmic_arb);
> - if (err) {
> - dev_err(&pdev->dev, "could not read APID->PPID mapping table, rc= %d\n",
> - err);
> - return err;
> - }
> - }
> -
> dev_dbg(&pdev->dev, "adding irq domain\n");
> pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node,
> &pmic_arb_irq_domain_ops, pmic_arb);
>
With that clarified:
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
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^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 4/5] spmi: pmic-arb: Make core resources acquiring a version operation
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-28 8:54 ` Neil Armstrong
-1 siblings, 0 replies; 34+ messages in thread
From: Neil Armstrong @ 2024-03-28 8:54 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
On 26/03/2024 17:28, Abel Vesa wrote:
> Rather than setting up the core, obsrv and chnls in probe by using
> version specific conditionals, add a dedicated "get_core_resources"
> version specific op and move the acquiring in there.
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> drivers/spmi/spmi-pmic-arb.c | 113 +++++++++++++++++++++++++++----------------
> 1 file changed, 70 insertions(+), 43 deletions(-)
>
> diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
> index 38fed8a585fe..188252bfb95f 100644
> --- a/drivers/spmi/spmi-pmic-arb.c
> +++ b/drivers/spmi/spmi-pmic-arb.c
> @@ -203,6 +203,7 @@ struct spmi_pmic_arb {
> */
> struct pmic_arb_ver_ops {
> const char *ver_str;
> + int (*get_core_resources)(struct platform_device *pdev, void __iomem *core);
> int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
> int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
> /* spmi commands (read_cmd, write_cmd, cmd) functionality */
> @@ -956,6 +957,19 @@ static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
> return 0;
> }
>
> +static int pmic_arb_get_core_resources_v1(struct platform_device *pdev,
> + void __iomem *core)
> +{
> + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
> +
> + pmic_arb->wr_base = core;
> + pmic_arb->rd_base = core;
> +
> + pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
> +
> + return 0;
> +}
> +
> static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
> {
> u32 *mapping_table;
> @@ -1063,6 +1077,33 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> return apid;
> }
>
> +static int pmic_arb_get_obsrvr_chnls_v2(struct platform_device *pdev)
> +{
> + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
> +
> + pmic_arb->rd_base = devm_platform_ioremap_resource_byname(pdev, "obsrvr");
> + if (IS_ERR(pmic_arb->rd_base))
> + return PTR_ERR(pmic_arb->rd_base);
> +
> + pmic_arb->wr_base = devm_platform_ioremap_resource_byname(pdev, "chnls");
> + if (IS_ERR(pmic_arb->wr_base))
> + return PTR_ERR(pmic_arb->wr_base);
> +
> + return 0;
> +}
> +
> +static int pmic_arb_get_core_resources_v2(struct platform_device *pdev,
> + void __iomem *core)
> +{
> + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
> +
> + pmic_arb->core = core;
> +
> + pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
> +
> + return pmic_arb_get_obsrvr_chnls_v2(pdev);
> +}
> +
> static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> {
> u16 apid_valid;
> @@ -1246,6 +1287,18 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> return offset;
> }
>
> +static int pmic_arb_get_core_resources_v7(struct platform_device *pdev,
> + void __iomem *core)
> +{
> + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
> +
> + pmic_arb->core = core;
> +
> + pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
> +
> + return pmic_arb_get_obsrvr_chnls_v2(pdev);
> +}
> +
> /*
> * Only v7 supports 2 buses. Each bus will get a different apid count, read
> * from different registers.
> @@ -1469,6 +1522,7 @@ pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
>
> static const struct pmic_arb_ver_ops pmic_arb_v1 = {
> .ver_str = "v1",
> + .get_core_resources = pmic_arb_get_core_resources_v1,
> .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v1,
> .non_data_cmd = pmic_arb_non_data_cmd_v1,
> @@ -1484,6 +1538,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v1 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v2 = {
> .ver_str = "v2",
> + .get_core_resources = pmic_arb_get_core_resources_v2,
> .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v2,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> @@ -1499,6 +1554,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v2 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v3 = {
> .ver_str = "v3",
> + .get_core_resources = pmic_arb_get_core_resources_v2,
> .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v2,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> @@ -1514,6 +1570,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v3 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v5 = {
> .ver_str = "v5",
> + .get_core_resources = pmic_arb_get_core_resources_v2,
> .init_apid = pmic_arb_init_apid_v5,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v5,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> @@ -1529,6 +1586,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v5 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v7 = {
> .ver_str = "v7",
> + .get_core_resources = pmic_arb_get_core_resources_v7,
> .init_apid = pmic_arb_init_apid_v7,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v5,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> @@ -1565,16 +1623,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> pmic_arb = spmi_controller_get_drvdata(ctrl);
> pmic_arb->spmic = ctrl;
>
> - /*
> - * Please don't replace this with devm_platform_ioremap_resource() or
> - * devm_ioremap_resource(). These both result in a call to
> - * devm_request_mem_region() which prevents multiple mappings of this
> - * register address range. SoCs with PMIC arbiter v7 may define two
> - * arbiter devices, for the two physical SPMI interfaces, which share
> - * some register address ranges (i.e. "core", "obsrvr", and "chnls").
> - * Ensure that both devices probe successfully by calling devm_ioremap()
> - * which does not result in a devm_request_mem_region() call.
> - */
Can you explain in the commit message why you remove this comment ?
> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
> core = devm_ioremap(&ctrl->dev, res->start, resource_size(res));
> if (IS_ERR(core))
> @@ -1584,44 +1632,23 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
>
> hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
>
> - if (hw_ver < PMIC_ARB_VERSION_V2_MIN) {
> + if (hw_ver < PMIC_ARB_VERSION_V2_MIN)
> pmic_arb->ver_ops = &pmic_arb_v1;
> - pmic_arb->wr_base = core;
> - pmic_arb->rd_base = core;
> - } else {
> - pmic_arb->core = core;
> -
> - if (hw_ver < PMIC_ARB_VERSION_V3_MIN)
> - pmic_arb->ver_ops = &pmic_arb_v2;
> - else if (hw_ver < PMIC_ARB_VERSION_V5_MIN)
> - pmic_arb->ver_ops = &pmic_arb_v3;
> - else if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
> - pmic_arb->ver_ops = &pmic_arb_v5;
> - else
> - pmic_arb->ver_ops = &pmic_arb_v7;
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
> - "obsrvr");
> - pmic_arb->rd_base = devm_ioremap(&ctrl->dev, res->start,
> - resource_size(res));
> - if (IS_ERR(pmic_arb->rd_base))
> - return PTR_ERR(pmic_arb->rd_base);
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
> - "chnls");
> - pmic_arb->wr_base = devm_ioremap(&ctrl->dev, res->start,
> - resource_size(res));
> - if (IS_ERR(pmic_arb->wr_base))
> - return PTR_ERR(pmic_arb->wr_base);
> - }
> + else if (hw_ver < PMIC_ARB_VERSION_V3_MIN)
> + pmic_arb->ver_ops = &pmic_arb_v2;
> + else if (hw_ver < PMIC_ARB_VERSION_V5_MIN)
> + pmic_arb->ver_ops = &pmic_arb_v3;
> + else if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
> + pmic_arb->ver_ops = &pmic_arb_v5;
> + else
> + pmic_arb->ver_ops = &pmic_arb_v7;
>
> dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
> pmic_arb->ver_ops->ver_str, hw_ver);
>
> - if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
> - pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
> - else
> - pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
> + err = pmic_arb->ver_ops->get_core_resources(pdev, core);
> + if (err)
> + return err;
>
> err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
> if (err)
>
With that added:
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 4/5] spmi: pmic-arb: Make core resources acquiring a version operation
@ 2024-03-28 8:54 ` Neil Armstrong
0 siblings, 0 replies; 34+ messages in thread
From: Neil Armstrong @ 2024-03-28 8:54 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
On 26/03/2024 17:28, Abel Vesa wrote:
> Rather than setting up the core, obsrv and chnls in probe by using
> version specific conditionals, add a dedicated "get_core_resources"
> version specific op and move the acquiring in there.
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> drivers/spmi/spmi-pmic-arb.c | 113 +++++++++++++++++++++++++++----------------
> 1 file changed, 70 insertions(+), 43 deletions(-)
>
> diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
> index 38fed8a585fe..188252bfb95f 100644
> --- a/drivers/spmi/spmi-pmic-arb.c
> +++ b/drivers/spmi/spmi-pmic-arb.c
> @@ -203,6 +203,7 @@ struct spmi_pmic_arb {
> */
> struct pmic_arb_ver_ops {
> const char *ver_str;
> + int (*get_core_resources)(struct platform_device *pdev, void __iomem *core);
> int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
> int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
> /* spmi commands (read_cmd, write_cmd, cmd) functionality */
> @@ -956,6 +957,19 @@ static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
> return 0;
> }
>
> +static int pmic_arb_get_core_resources_v1(struct platform_device *pdev,
> + void __iomem *core)
> +{
> + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
> +
> + pmic_arb->wr_base = core;
> + pmic_arb->rd_base = core;
> +
> + pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
> +
> + return 0;
> +}
> +
> static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
> {
> u32 *mapping_table;
> @@ -1063,6 +1077,33 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> return apid;
> }
>
> +static int pmic_arb_get_obsrvr_chnls_v2(struct platform_device *pdev)
> +{
> + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
> +
> + pmic_arb->rd_base = devm_platform_ioremap_resource_byname(pdev, "obsrvr");
> + if (IS_ERR(pmic_arb->rd_base))
> + return PTR_ERR(pmic_arb->rd_base);
> +
> + pmic_arb->wr_base = devm_platform_ioremap_resource_byname(pdev, "chnls");
> + if (IS_ERR(pmic_arb->wr_base))
> + return PTR_ERR(pmic_arb->wr_base);
> +
> + return 0;
> +}
> +
> +static int pmic_arb_get_core_resources_v2(struct platform_device *pdev,
> + void __iomem *core)
> +{
> + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
> +
> + pmic_arb->core = core;
> +
> + pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
> +
> + return pmic_arb_get_obsrvr_chnls_v2(pdev);
> +}
> +
> static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> {
> u16 apid_valid;
> @@ -1246,6 +1287,18 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> return offset;
> }
>
> +static int pmic_arb_get_core_resources_v7(struct platform_device *pdev,
> + void __iomem *core)
> +{
> + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
> +
> + pmic_arb->core = core;
> +
> + pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
> +
> + return pmic_arb_get_obsrvr_chnls_v2(pdev);
> +}
> +
> /*
> * Only v7 supports 2 buses. Each bus will get a different apid count, read
> * from different registers.
> @@ -1469,6 +1522,7 @@ pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
>
> static const struct pmic_arb_ver_ops pmic_arb_v1 = {
> .ver_str = "v1",
> + .get_core_resources = pmic_arb_get_core_resources_v1,
> .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v1,
> .non_data_cmd = pmic_arb_non_data_cmd_v1,
> @@ -1484,6 +1538,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v1 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v2 = {
> .ver_str = "v2",
> + .get_core_resources = pmic_arb_get_core_resources_v2,
> .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v2,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> @@ -1499,6 +1554,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v2 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v3 = {
> .ver_str = "v3",
> + .get_core_resources = pmic_arb_get_core_resources_v2,
> .init_apid = pmic_arb_init_apid_v1,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v2,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> @@ -1514,6 +1570,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v3 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v5 = {
> .ver_str = "v5",
> + .get_core_resources = pmic_arb_get_core_resources_v2,
> .init_apid = pmic_arb_init_apid_v5,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v5,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> @@ -1529,6 +1586,7 @@ static const struct pmic_arb_ver_ops pmic_arb_v5 = {
>
> static const struct pmic_arb_ver_ops pmic_arb_v7 = {
> .ver_str = "v7",
> + .get_core_resources = pmic_arb_get_core_resources_v7,
> .init_apid = pmic_arb_init_apid_v7,
> .ppid_to_apid = pmic_arb_ppid_to_apid_v5,
> .non_data_cmd = pmic_arb_non_data_cmd_v2,
> @@ -1565,16 +1623,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> pmic_arb = spmi_controller_get_drvdata(ctrl);
> pmic_arb->spmic = ctrl;
>
> - /*
> - * Please don't replace this with devm_platform_ioremap_resource() or
> - * devm_ioremap_resource(). These both result in a call to
> - * devm_request_mem_region() which prevents multiple mappings of this
> - * register address range. SoCs with PMIC arbiter v7 may define two
> - * arbiter devices, for the two physical SPMI interfaces, which share
> - * some register address ranges (i.e. "core", "obsrvr", and "chnls").
> - * Ensure that both devices probe successfully by calling devm_ioremap()
> - * which does not result in a devm_request_mem_region() call.
> - */
Can you explain in the commit message why you remove this comment ?
> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
> core = devm_ioremap(&ctrl->dev, res->start, resource_size(res));
> if (IS_ERR(core))
> @@ -1584,44 +1632,23 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
>
> hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
>
> - if (hw_ver < PMIC_ARB_VERSION_V2_MIN) {
> + if (hw_ver < PMIC_ARB_VERSION_V2_MIN)
> pmic_arb->ver_ops = &pmic_arb_v1;
> - pmic_arb->wr_base = core;
> - pmic_arb->rd_base = core;
> - } else {
> - pmic_arb->core = core;
> -
> - if (hw_ver < PMIC_ARB_VERSION_V3_MIN)
> - pmic_arb->ver_ops = &pmic_arb_v2;
> - else if (hw_ver < PMIC_ARB_VERSION_V5_MIN)
> - pmic_arb->ver_ops = &pmic_arb_v3;
> - else if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
> - pmic_arb->ver_ops = &pmic_arb_v5;
> - else
> - pmic_arb->ver_ops = &pmic_arb_v7;
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
> - "obsrvr");
> - pmic_arb->rd_base = devm_ioremap(&ctrl->dev, res->start,
> - resource_size(res));
> - if (IS_ERR(pmic_arb->rd_base))
> - return PTR_ERR(pmic_arb->rd_base);
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
> - "chnls");
> - pmic_arb->wr_base = devm_ioremap(&ctrl->dev, res->start,
> - resource_size(res));
> - if (IS_ERR(pmic_arb->wr_base))
> - return PTR_ERR(pmic_arb->wr_base);
> - }
> + else if (hw_ver < PMIC_ARB_VERSION_V3_MIN)
> + pmic_arb->ver_ops = &pmic_arb_v2;
> + else if (hw_ver < PMIC_ARB_VERSION_V5_MIN)
> + pmic_arb->ver_ops = &pmic_arb_v3;
> + else if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
> + pmic_arb->ver_ops = &pmic_arb_v5;
> + else
> + pmic_arb->ver_ops = &pmic_arb_v7;
>
> dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
> pmic_arb->ver_ops->ver_str, hw_ver);
>
> - if (hw_ver < PMIC_ARB_VERSION_V7_MIN)
> - pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
> - else
> - pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7;
> + err = pmic_arb->ver_ops->get_core_resources(pdev, core);
> + if (err)
> + return err;
>
> err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
> if (err)
>
With that added:
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
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linux-arm-kernel@lists.infradead.org
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^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 5/5] spmi: pmic-arb: Add multi bus support
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-28 9:05 ` Neil Armstrong
-1 siblings, 0 replies; 34+ messages in thread
From: Neil Armstrong @ 2024-03-28 9:05 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
Hi Abel,
On 26/03/2024 17:28, Abel Vesa wrote:
> Starting with HW version 7, there are actually two separate buses
> (with two separate sets of wires). So in order to support both
> buses, we need to register a separate spmi controller for each one.
> Add a separate compatible for v7 only, but allow the legacy platforms
> that have v7 to still work with the old one, for DT backwards
> compatibility.
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> drivers/spmi/spmi-pmic-arb.c | 726 +++++++++++++++++++++++++------------------
> 1 file changed, 429 insertions(+), 297 deletions(-)
>
> diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
> index 188252bfb95f..ca0f42952445 100644
> --- a/drivers/spmi/spmi-pmic-arb.c
> +++ b/drivers/spmi/spmi-pmic-arb.c
> @@ -13,6 +13,8 @@
> #include <linux/kernel.h>
> #include <linux/module.h>
> #include <linux/of.h>
> +#include <linux/of_address.h>
> +#include <linux/of_irq.h>
> #include <linux/platform_device.h>
> #include <linux/slab.h>
> #include <linux/spmi.h>
> @@ -94,6 +96,8 @@ enum pmic_arb_channel {
> PMIC_ARB_CHANNEL_OBS,
> };
>
> +#define PMIC_ARB_MAX_BUSES 2
> +
> /* Maximum number of support PMIC peripherals */
> #define PMIC_ARB_MAX_PERIPHS 512
> #define PMIC_ARB_MAX_PERIPHS_V7 1024
> @@ -125,58 +129,68 @@ struct apid_data {
> u8 irq_ee;
> };
>
> +struct spmi_pmic_arb;
> +
> /**
> - * struct spmi_pmic_arb - SPMI PMIC Arbiter object
> + * struct spmi_pmic_arb_bus - SPMI PMIC Arbiter Bus object
> *
> - * @rd_base: on v1 "core", on v2 "observer" register base off DT.
> - * @wr_base: on v1 "core", on v2 "chnls" register base off DT.
> * @intr: address of the SPMI interrupt control registers.
> * @cnfg: address of the PMIC Arbiter configuration registers.
> - * @lock: lock to synchronize accesses.
> - * @channel: execution environment channel to use for accesses.
> - * @irq: PMIC ARB interrupt.
> - * @ee: the current Execution Environment
> - * @bus_instance: on v7: 0 = primary SPMI bus, 1 = secondary SPMI bus
> - * @min_apid: minimum APID (used for bounding IRQ search)
> - * @max_apid: maximum APID
> + * @domain: irq domain object for PMIC IRQ domain
> * @base_apid: on v7: minimum APID associated with the particular SPMI
> * bus instance
> * @apid_count: on v5 and v7: number of APIDs associated with the
> * particular SPMI bus instance
> * @mapping_table: in-memory copy of PPID -> APID mapping table.
> - * @domain: irq domain object for PMIC IRQ domain
> - * @spmic: SPMI controller object
> - * @ver_ops: version dependent operations.
> * @ppid_to_apid: in-memory copy of PPID -> APID mapping table.
> - * @last_apid: Highest value APID in use
> * @apid_data: Table of data for all APIDs
> + * @last_apid: Highest value APID in use
> + * @irq: PMIC ARB interrupt.
Those are moved for no reason, and it doesn't match anymore with the actual fields in spmi_pmic_arb_bus,
please fix.
> + */
> +struct spmi_pmic_arb_bus {
> + struct spmi_pmic_arb *pmic_arb;
> + struct irq_domain *domain;
> + void __iomem *intr;
> + void __iomem *cnfg;
> + struct spmi_controller *spmic;
> + u16 base_apid;
> + int apid_count;
> + u32 *mapping_table;
> + DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS);
> + u16 *ppid_to_apid;
> + u16 last_apid;
> + struct apid_data *apid_data;
> + u16 min_apid;
> + u16 max_apid;
> + int irq;
> + u8 id;
> +};
> +
> +/**
> + * struct spmi_pmic_arb - SPMI PMIC Arbiter object
> + *
> + * @rd_base: on v1 "core", on v2 "observer" register base off DT.
> + * @wr_base: on v1 "core", on v2 "chnls" register base off DT.
> + * @lock: lock to synchronize accesses.
> + * @channel: execution environment channel to use for accesses.
> + * @ee: the current Execution Environment
> + * @min_apid: minimum APID (used for bounding IRQ search)
> + * @max_apid: maximum APID
> + * @ver_ops: version dependent operations.
> * @max_periphs: Number of elements in apid_data[]
> */
> struct spmi_pmic_arb {
> void __iomem *rd_base;
> void __iomem *wr_base;
> - void __iomem *intr;
> - void __iomem *cnfg;
> void __iomem *core;
> resource_size_t core_size;
> raw_spinlock_t lock;
> u8 channel;
> - int irq;
> u8 ee;
> - u32 bus_instance;
> - u16 min_apid;
> - u16 max_apid;
> - u16 base_apid;
> - int apid_count;
> - u32 *mapping_table;
> - DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS);
> - struct irq_domain *domain;
> - struct spmi_controller *spmic;
> const struct pmic_arb_ver_ops *ver_ops;
> - u16 *ppid_to_apid;
> - u16 last_apid;
> - struct apid_data *apid_data;
> int max_periphs;
> + struct spmi_pmic_arb_bus buses[PMIC_ARB_MAX_BUSES];
> + int buses_available;
> };
Same here, please refresh/resync the struct documentation
I get the following:
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'pmic_arb' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'spmic' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'mapping_table_valid' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'min_apid' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'max_apid' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'id' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:194: warning: Function parameter or struct member 'core' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:194: warning: Function parameter or struct member 'core_size' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:194: warning: Function parameter or struct member 'buses' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:194: warning: Function parameter or struct member 'buses_available' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:194: warning: Excess struct member 'min_apid' description in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:194: warning: Excess struct member 'max_apid' description in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:236: warning: Function parameter or struct member 'get_core_resources' not described in 'pmic_arb_ver_ops'
drivers/spmi/spmi-pmic-arb.c:258: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_read_data'
drivers/spmi/spmi-pmic-arb.c:272: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_write_data'
>
> /**
> @@ -204,21 +218,21 @@ struct spmi_pmic_arb {
> struct pmic_arb_ver_ops {
> const char *ver_str;
> int (*get_core_resources)(struct platform_device *pdev, void __iomem *core);
> - int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
> - int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
> + int (*init_apid)(struct spmi_pmic_arb_bus *bus, int index);
> + int (*ppid_to_apid)(struct spmi_pmic_arb_bus *bus, u16 ppid);
> /* spmi commands (read_cmd, write_cmd, cmd) functionality */
> - int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> - enum pmic_arb_channel ch_type);
> + int (*offset)(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
> + enum pmic_arb_channel ch_type);
> u32 (*fmt_cmd)(u8 opc, u8 sid, u16 addr, u8 bc);
> int (*non_data_cmd)(struct spmi_controller *ctrl, u8 opc, u8 sid);
> /* Interrupts controller functionality (offset of PIC registers) */
> - void __iomem *(*owner_acc_status)(struct spmi_pmic_arb *pmic_arb, u8 m,
> + void __iomem *(*owner_acc_status)(struct spmi_pmic_arb_bus *bus, u8 m,
> u16 n);
> - void __iomem *(*acc_enable)(struct spmi_pmic_arb *pmic_arb, u16 n);
> - void __iomem *(*irq_status)(struct spmi_pmic_arb *pmic_arb, u16 n);
> - void __iomem *(*irq_clear)(struct spmi_pmic_arb *pmic_arb, u16 n);
> + void __iomem *(*acc_enable)(struct spmi_pmic_arb_bus *bus, u16 n);
> + void __iomem *(*irq_status)(struct spmi_pmic_arb_bus *bus, u16 n);
> + void __iomem *(*irq_clear)(struct spmi_pmic_arb_bus *bus, u16 n);
> u32 (*apid_map_offset)(u16 n);
> - void __iomem *(*apid_owner)(struct spmi_pmic_arb *pmic_arb, u16 n);
> + void __iomem *(*apid_owner)(struct spmi_pmic_arb_bus *bus, u16 n);
> };
>
> static inline void pmic_arb_base_write(struct spmi_pmic_arb *pmic_arb,
> @@ -266,13 +280,14 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
> void __iomem *base, u8 sid, u16 addr,
> enum pmic_arb_channel ch_type)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u32 status = 0;
> u32 timeout = PMIC_ARB_TIMEOUT_US;
> u32 offset;
> int rc;
>
> - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, ch_type);
> + rc = pmic_arb->ver_ops->offset(bus, sid, addr, ch_type);
> if (rc < 0)
> return rc;
>
> @@ -284,21 +299,21 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
>
> if (status & PMIC_ARB_STATUS_DONE) {
> if (status & PMIC_ARB_STATUS_DENIED) {
> - dev_err(&ctrl->dev, "%s: %#x %#x: transaction denied (%#x)\n",
> - __func__, sid, addr, status);
> + dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction denied (%#x)\n",
> + __func__, bus->id, sid, addr, status);
Won't "dev_err(&ctrl->dev" already print the bus id ?
> return -EPERM;
> }
>
> if (status & PMIC_ARB_STATUS_FAILURE) {
> - dev_err(&ctrl->dev, "%s: %#x %#x: transaction failed (%#x)\n",
> - __func__, sid, addr, status);
> + dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction failed (%#x) reg: 0x%x\n",
> + __func__, bus->id, sid, addr, status, offset);
> WARN_ON(1);
> return -EIO;
> }
>
> if (status & PMIC_ARB_STATUS_DROPPED) {
> - dev_err(&ctrl->dev, "%s: %#x %#x: transaction dropped (%#x)\n",
> - __func__, sid, addr, status);
> + dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction dropped (%#x)\n",
> + __func__, bus->id, sid, addr, status);
> return -EIO;
> }
>
> @@ -307,8 +322,8 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
> udelay(1);
> }
>
> - dev_err(&ctrl->dev, "%s: %#x %#x: timeout, status %#x\n",
> - __func__, sid, addr, status);
> + dev_err(&ctrl->dev, "%s: %#x %#x %#x: timeout, status %#x\n",
> + __func__, bus->id, sid, addr, status);
> return -ETIMEDOUT;
> }
>
> @@ -316,12 +331,13 @@ static int
> pmic_arb_non_data_cmd_v1(struct spmi_controller *ctrl, u8 opc, u8 sid)
> {
> struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[0];
> unsigned long flags;
> u32 cmd;
> int rc;
> u32 offset;
>
> - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, 0, PMIC_ARB_CHANNEL_RW);
> + rc = pmic_arb->ver_ops->offset(bus, sid, 0, PMIC_ARB_CHANNEL_RW);
> if (rc < 0)
> return rc;
>
> @@ -357,20 +373,21 @@ static int pmic_arb_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid)
> return pmic_arb->ver_ops->non_data_cmd(ctrl, opc, sid);
> }
>
> -static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc, u8 sid,
> +static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb_bus *bus, u8 opc, u8 sid,
> u16 addr, size_t len, u32 *cmd, u32 *offset)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u8 bc = len - 1;
> int rc;
>
> - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr,
> + rc = pmic_arb->ver_ops->offset(bus, sid, addr,
> PMIC_ARB_CHANNEL_OBS);
> if (rc < 0)
> return rc;
>
> *offset = rc;
> if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
> - dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
> + dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
> PMIC_ARB_MAX_TRANS_BYTES, len);
> return -EINVAL;
> }
> @@ -394,7 +411,8 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
> u32 offset, u8 sid, u16 addr, u8 *buf,
> size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u8 bc = len - 1;
> int rc;
>
> @@ -416,12 +434,13 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
> static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
> u16 addr, u8 *buf, size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> unsigned long flags;
> u32 cmd, offset;
> int rc;
>
> - rc = pmic_arb_fmt_read_cmd(pmic_arb, opc, sid, addr, len, &cmd,
> + rc = pmic_arb_fmt_read_cmd(bus, opc, sid, addr, len, &cmd,
> &offset);
> if (rc)
> return rc;
> @@ -433,21 +452,22 @@ static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
> return rc;
> }
>
> -static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc,
> +static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb_bus *bus, u8 opc,
> u8 sid, u16 addr, size_t len, u32 *cmd,
> u32 *offset)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u8 bc = len - 1;
> int rc;
>
> - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr,
> + rc = pmic_arb->ver_ops->offset(bus, sid, addr,
> PMIC_ARB_CHANNEL_RW);
> if (rc < 0)
> return rc;
>
> *offset = rc;
> if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
> - dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
> + dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
> PMIC_ARB_MAX_TRANS_BYTES, len);
> return -EINVAL;
> }
> @@ -473,7 +493,8 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
> u32 offset, u8 sid, u16 addr,
> const u8 *buf, size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u8 bc = len - 1;
>
> /* Write data to FIFOs */
> @@ -492,12 +513,13 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
> static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
> u16 addr, const u8 *buf, size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> unsigned long flags;
> u32 cmd, offset;
> int rc;
>
> - rc = pmic_arb_fmt_write_cmd(pmic_arb, opc, sid, addr, len, &cmd,
> + rc = pmic_arb_fmt_write_cmd(bus, opc, sid, addr, len, &cmd,
> &offset);
> if (rc)
> return rc;
> @@ -513,18 +535,19 @@ static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
> static int pmic_arb_masked_write(struct spmi_controller *ctrl, u8 sid, u16 addr,
> const u8 *buf, const u8 *mask, size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u32 read_cmd, read_offset, write_cmd, write_offset;
> u8 temp[PMIC_ARB_MAX_TRANS_BYTES];
> unsigned long flags;
> int rc, i;
>
> - rc = pmic_arb_fmt_read_cmd(pmic_arb, SPMI_CMD_EXT_READL, sid, addr, len,
> + rc = pmic_arb_fmt_read_cmd(bus, SPMI_CMD_EXT_READL, sid, addr, len,
> &read_cmd, &read_offset);
> if (rc)
> return rc;
>
> - rc = pmic_arb_fmt_write_cmd(pmic_arb, SPMI_CMD_EXT_WRITEL, sid, addr,
> + rc = pmic_arb_fmt_write_cmd(bus, SPMI_CMD_EXT_WRITEL, sid, addr,
> len, &write_cmd, &write_offset);
> if (rc)
> return rc;
> @@ -567,25 +590,25 @@ struct spmi_pmic_arb_qpnpint_type {
> static void qpnpint_spmi_write(struct irq_data *d, u8 reg, void *buf,
> size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> u8 sid = hwirq_to_sid(d->hwirq);
> u8 per = hwirq_to_per(d->hwirq);
>
> - if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid,
> + if (pmic_arb_write_cmd(bus->spmic, SPMI_CMD_EXT_WRITEL, sid,
> (per << 8) + reg, buf, len))
> - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n",
> + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\n",
> d->irq);
> }
>
> static void qpnpint_spmi_read(struct irq_data *d, u8 reg, void *buf, size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> u8 sid = hwirq_to_sid(d->hwirq);
> u8 per = hwirq_to_per(d->hwirq);
>
> - if (pmic_arb_read_cmd(pmic_arb->spmic, SPMI_CMD_EXT_READL, sid,
> + if (pmic_arb_read_cmd(bus->spmic, SPMI_CMD_EXT_READL, sid,
> (per << 8) + reg, buf, len))
> - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n",
> + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\n",
> d->irq);
> }
>
> @@ -593,47 +616,49 @@ static int qpnpint_spmi_masked_write(struct irq_data *d, u8 reg,
> const void *buf, const void *mask,
> size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> u8 sid = hwirq_to_sid(d->hwirq);
> u8 per = hwirq_to_per(d->hwirq);
> int rc;
>
> - rc = pmic_arb_masked_write(pmic_arb->spmic, sid, (per << 8) + reg, buf,
> + rc = pmic_arb_masked_write(bus->spmic, sid, (per << 8) + reg, buf,
> mask, len);
> if (rc)
> - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x rc=%d\n",
> + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x rc=%d\n",
> d->irq, rc);
> return rc;
> }
>
> -static void cleanup_irq(struct spmi_pmic_arb *pmic_arb, u16 apid, int id)
> +static void cleanup_irq(struct spmi_pmic_arb_bus *bus, u16 apid, int id)
> {
> - u16 ppid = pmic_arb->apid_data[apid].ppid;
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> + u16 ppid = bus->apid_data[apid].ppid;
> u8 sid = ppid >> 8;
> u8 per = ppid & 0xFF;
> u8 irq_mask = BIT(id);
>
> - dev_err_ratelimited(&pmic_arb->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n",
> - __func__, apid, sid, per, id);
> - writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(pmic_arb, apid));
> + dev_err_ratelimited(&bus->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n",
> + __func__, apid, sid, per, id);
> + writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(bus, apid));
> }
>
> -static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid)
> +static int periph_interrupt(struct spmi_pmic_arb_bus *bus, u16 apid)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> unsigned int irq;
> u32 status, id;
> int handled = 0;
> - u8 sid = (pmic_arb->apid_data[apid].ppid >> 8) & 0xF;
> - u8 per = pmic_arb->apid_data[apid].ppid & 0xFF;
> + u8 sid = (bus->apid_data[apid].ppid >> 8) & 0xF;
> + u8 per = bus->apid_data[apid].ppid & 0xFF;
>
> - status = readl_relaxed(pmic_arb->ver_ops->irq_status(pmic_arb, apid));
> + status = readl_relaxed(pmic_arb->ver_ops->irq_status(bus, apid));
> while (status) {
> id = ffs(status) - 1;
> status &= ~BIT(id);
> - irq = irq_find_mapping(pmic_arb->domain,
> - spec_to_hwirq(sid, per, id, apid));
> + irq = irq_find_mapping(bus->domain,
> + spec_to_hwirq(sid, per, id, apid));
> if (irq == 0) {
> - cleanup_irq(pmic_arb, apid, id);
> + cleanup_irq(bus, apid, id);
> continue;
> }
> generic_handle_irq(irq);
> @@ -645,16 +670,17 @@ static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid)
>
> static void pmic_arb_chained_irq(struct irq_desc *desc)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_desc_get_handler_data(desc);
> + struct spmi_pmic_arb_bus *bus = irq_desc_get_handler_data(desc);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
> struct irq_chip *chip = irq_desc_get_chip(desc);
> - int first = pmic_arb->min_apid;
> - int last = pmic_arb->max_apid;
> + int first = bus->min_apid;
> + int last = bus->max_apid;
> /*
> * acc_offset will be non-zero for the secondary SPMI bus instance on
> * v7 controllers.
> */
> - int acc_offset = pmic_arb->base_apid >> 5;
> + int acc_offset = bus->base_apid >> 5;
> u8 ee = pmic_arb->ee;
> u32 status, enable, handled = 0;
> int i, id, apid;
> @@ -665,7 +691,7 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
> chained_irq_enter(chip, desc);
>
> for (i = first >> 5; i <= last >> 5; ++i) {
> - status = readl_relaxed(ver_ops->owner_acc_status(pmic_arb, ee, i - acc_offset));
> + status = readl_relaxed(ver_ops->owner_acc_status(bus, ee, i - acc_offset));
> if (status)
> acc_valid = true;
>
> @@ -679,9 +705,9 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
> continue;
> }
> enable = readl_relaxed(
> - ver_ops->acc_enable(pmic_arb, apid));
> + ver_ops->acc_enable(bus, apid));
> if (enable & SPMI_PIC_ACC_ENABLE_BIT)
> - if (periph_interrupt(pmic_arb, apid) != 0)
> + if (periph_interrupt(bus, apid) != 0)
> handled++;
> }
> }
> @@ -690,19 +716,19 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
> if (!acc_valid) {
> for (i = first; i <= last; i++) {
> /* skip if APPS is not irq owner */
> - if (pmic_arb->apid_data[i].irq_ee != pmic_arb->ee)
> + if (bus->apid_data[i].irq_ee != pmic_arb->ee)
> continue;
>
> irq_status = readl_relaxed(
> - ver_ops->irq_status(pmic_arb, i));
> + ver_ops->irq_status(bus, i));
> if (irq_status) {
> enable = readl_relaxed(
> - ver_ops->acc_enable(pmic_arb, i));
> + ver_ops->acc_enable(bus, i));
> if (enable & SPMI_PIC_ACC_ENABLE_BIT) {
> - dev_dbg(&pmic_arb->spmic->dev,
> + dev_dbg(&bus->spmic->dev,
> "Dispatching IRQ for apid=%d status=%x\n",
> i, irq_status);
> - if (periph_interrupt(pmic_arb, i) != 0)
> + if (periph_interrupt(bus, i) != 0)
> handled++;
> }
> }
> @@ -717,12 +743,13 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
>
> static void qpnpint_irq_ack(struct irq_data *d)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u8 irq = hwirq_to_irq(d->hwirq);
> u16 apid = hwirq_to_apid(d->hwirq);
> u8 data;
>
> - writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(pmic_arb, apid));
> + writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(bus, apid));
>
> data = BIT(irq);
> qpnpint_spmi_write(d, QPNPINT_REG_LATCHED_CLR, &data, 1);
> @@ -738,14 +765,15 @@ static void qpnpint_irq_mask(struct irq_data *d)
>
> static void qpnpint_irq_unmask(struct irq_data *d)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
> u8 irq = hwirq_to_irq(d->hwirq);
> u16 apid = hwirq_to_apid(d->hwirq);
> u8 buf[2];
>
> writel_relaxed(SPMI_PIC_ACC_ENABLE_BIT,
> - ver_ops->acc_enable(pmic_arb, apid));
> + ver_ops->acc_enable(bus, apid));
>
> qpnpint_spmi_read(d, QPNPINT_REG_EN_SET, &buf[0], 1);
> if (!(buf[0] & BIT(irq))) {
> @@ -802,9 +830,9 @@ static int qpnpint_irq_set_type(struct irq_data *d, unsigned int flow_type)
>
> static int qpnpint_irq_set_wake(struct irq_data *d, unsigned int on)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
>
> - return irq_set_irq_wake(pmic_arb->irq, on);
> + return irq_set_irq_wake(bus->irq, on);
> }
>
> static int qpnpint_get_irqchip_state(struct irq_data *d,
> @@ -826,17 +854,18 @@ static int qpnpint_get_irqchip_state(struct irq_data *d,
> static int qpnpint_irq_domain_activate(struct irq_domain *domain,
> struct irq_data *d, bool reserve)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u16 periph = hwirq_to_per(d->hwirq);
> u16 apid = hwirq_to_apid(d->hwirq);
> u16 sid = hwirq_to_sid(d->hwirq);
> u16 irq = hwirq_to_irq(d->hwirq);
> u8 buf;
>
> - if (pmic_arb->apid_data[apid].irq_ee != pmic_arb->ee) {
> - dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n",
> + if (bus->apid_data[apid].irq_ee != pmic_arb->ee) {
> + dev_err(&bus->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n",
> sid, periph, irq, pmic_arb->ee,
> - pmic_arb->apid_data[apid].irq_ee);
> + bus->apid_data[apid].irq_ee);
> return -ENODEV;
> }
>
> @@ -863,15 +892,16 @@ static int qpnpint_irq_domain_translate(struct irq_domain *d,
> unsigned long *out_hwirq,
> unsigned int *out_type)
> {
> - struct spmi_pmic_arb *pmic_arb = d->host_data;
> + struct spmi_pmic_arb_bus *bus = d->host_data;
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u32 *intspec = fwspec->param;
> u16 apid, ppid;
> int rc;
>
> - dev_dbg(&pmic_arb->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
> + dev_dbg(&bus->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
> intspec[0], intspec[1], intspec[2]);
>
> - if (irq_domain_get_of_node(d) != pmic_arb->spmic->dev.of_node)
> + if (irq_domain_get_of_node(d) != bus->spmic->dev.of_node)
> return -EINVAL;
> if (fwspec->param_count != 4)
> return -EINVAL;
> @@ -879,37 +909,38 @@ static int qpnpint_irq_domain_translate(struct irq_domain *d,
> return -EINVAL;
>
> ppid = intspec[0] << 8 | intspec[1];
> - rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid);
> + rc = pmic_arb->ver_ops->ppid_to_apid(bus, ppid);
> if (rc < 0) {
> - dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u rc = %d\n",
> - intspec[0], intspec[1], intspec[2], rc);
> + dev_err(&bus->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u rc = %d\n",
> + intspec[0], intspec[1], intspec[2], rc);
> return rc;
> }
>
> apid = rc;
> /* Keep track of {max,min}_apid for bounding search during interrupt */
> - if (apid > pmic_arb->max_apid)
> - pmic_arb->max_apid = apid;
> - if (apid < pmic_arb->min_apid)
> - pmic_arb->min_apid = apid;
> + if (apid > bus->max_apid)
> + bus->max_apid = apid;
> + if (apid < bus->min_apid)
> + bus->min_apid = apid;
>
> *out_hwirq = spec_to_hwirq(intspec[0], intspec[1], intspec[2], apid);
> *out_type = intspec[3] & IRQ_TYPE_SENSE_MASK;
>
> - dev_dbg(&pmic_arb->spmic->dev, "out_hwirq = %lu\n", *out_hwirq);
> + dev_dbg(&bus->spmic->dev, "out_hwirq = %lu\n", *out_hwirq);
>
> return 0;
> }
>
> static struct lock_class_key qpnpint_irq_lock_class, qpnpint_irq_request_class;
>
> -static void qpnpint_irq_domain_map(struct spmi_pmic_arb *pmic_arb,
> +static void qpnpint_irq_domain_map(struct spmi_pmic_arb_bus *bus,
> struct irq_domain *domain, unsigned int virq,
> irq_hw_number_t hwirq, unsigned int type)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> irq_flow_handler_t handler;
>
> - dev_dbg(&pmic_arb->spmic->dev, "virq = %u, hwirq = %lu, type = %u\n",
> + dev_dbg(&bus->spmic->dev, "virq = %u, hwirq = %lu, type = %u\n",
> virq, hwirq, type);
>
> if (type & IRQ_TYPE_EDGE_BOTH)
> @@ -928,7 +959,7 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
> unsigned int virq, unsigned int nr_irqs,
> void *data)
> {
> - struct spmi_pmic_arb *pmic_arb = domain->host_data;
> + struct spmi_pmic_arb_bus *bus = domain->host_data;
> struct irq_fwspec *fwspec = data;
> irq_hw_number_t hwirq;
> unsigned int type;
> @@ -939,20 +970,22 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
> return ret;
>
> for (i = 0; i < nr_irqs; i++)
> - qpnpint_irq_domain_map(pmic_arb, domain, virq + i, hwirq + i,
> + qpnpint_irq_domain_map(bus, domain, virq + i, hwirq + i,
> type);
>
> return 0;
> }
>
> -static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
> +static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb_bus *bus)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> +
> /*
> * Initialize max_apid/min_apid to the opposite bounds, during
> * the irq domain translation, we are sure to update these
> */
> - pmic_arb->max_apid = 0;
> - pmic_arb->min_apid = pmic_arb->max_periphs - 1;
> + bus->max_apid = 0;
> + bus->min_apid = pmic_arb->max_periphs - 1;
>
> return 0;
> }
> @@ -970,43 +1003,44 @@ static int pmic_arb_get_core_resources_v1(struct platform_device *pdev,
> return 0;
> }
>
> -static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
> +static int pmic_arb_init_apid_v1(struct spmi_pmic_arb_bus *bus, int index)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u32 *mapping_table;
>
> if (index) {
> - dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
> index);
> return -EINVAL;
> }
>
> - mapping_table = devm_kcalloc(&pmic_arb->spmic->dev, pmic_arb->max_periphs,
> + mapping_table = devm_kcalloc(&bus->spmic->dev, pmic_arb->max_periphs,
> sizeof(*mapping_table), GFP_KERNEL);
> if (!mapping_table)
> return -ENOMEM;
>
> - pmic_arb->mapping_table = mapping_table;
> + bus->mapping_table = mapping_table;
>
> - return pmic_arb_init_apid_min_max(pmic_arb);
> + return pmic_arb_init_apid_min_max(bus);
> }
>
> -static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> +static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb_bus *bus, u16 ppid)
> {
> - u32 *mapping_table = pmic_arb->mapping_table;
> + u32 *mapping_table = bus->mapping_table;
> int index = 0, i;
> u16 apid_valid;
> u16 apid;
> u32 data;
>
> - apid_valid = pmic_arb->ppid_to_apid[ppid];
> + apid_valid = bus->ppid_to_apid[ppid];
> if (apid_valid & PMIC_ARB_APID_VALID) {
> apid = apid_valid & ~PMIC_ARB_APID_VALID;
> return apid;
> }
>
> for (i = 0; i < SPMI_MAPPING_TABLE_TREE_DEPTH; ++i) {
> - if (!test_and_set_bit(index, pmic_arb->mapping_table_valid))
> - mapping_table[index] = readl_relaxed(pmic_arb->cnfg +
> + if (!test_and_set_bit(index, bus->mapping_table_valid))
> + mapping_table[index] = readl_relaxed(bus->cnfg +
> SPMI_MAPPING_TABLE_REG(index));
>
> data = mapping_table[index];
> @@ -1016,9 +1050,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> index = SPMI_MAPPING_BIT_IS_1_RESULT(data);
> } else {
> apid = SPMI_MAPPING_BIT_IS_1_RESULT(data);
> - pmic_arb->ppid_to_apid[ppid]
> + bus->ppid_to_apid[ppid]
> = apid | PMIC_ARB_APID_VALID;
> - pmic_arb->apid_data[apid].ppid = ppid;
> + bus->apid_data[apid].ppid = ppid;
> return apid;
> }
> } else {
> @@ -1026,9 +1060,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> index = SPMI_MAPPING_BIT_IS_0_RESULT(data);
> } else {
> apid = SPMI_MAPPING_BIT_IS_0_RESULT(data);
> - pmic_arb->ppid_to_apid[ppid]
> + bus->ppid_to_apid[ppid]
> = apid | PMIC_ARB_APID_VALID;
> - pmic_arb->apid_data[apid].ppid = ppid;
> + bus->apid_data[apid].ppid = ppid;
> return apid;
> }
> }
> @@ -1038,24 +1072,26 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> }
>
> /* v1 offset per ee */
> -static int pmic_arb_offset_v1(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> - enum pmic_arb_channel ch_type)
> +static int pmic_arb_offset_v1(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
> + enum pmic_arb_channel ch_type)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return 0x800 + 0x80 * pmic_arb->channel;
> }
>
> -static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> +static u16 pmic_arb_find_apid(struct spmi_pmic_arb_bus *bus, u16 ppid)
> {
> - struct apid_data *apidd = &pmic_arb->apid_data[pmic_arb->last_apid];
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> + struct apid_data *apidd = &bus->apid_data[bus->last_apid];
> u32 regval, offset;
> u16 id, apid;
>
> - for (apid = pmic_arb->last_apid; ; apid++, apidd++) {
> + for (apid = bus->last_apid; ; apid++, apidd++) {
> offset = pmic_arb->ver_ops->apid_map_offset(apid);
> if (offset >= pmic_arb->core_size)
> break;
>
> - regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb,
> + regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(bus,
> apid));
> apidd->irq_ee = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
> apidd->write_ee = apidd->irq_ee;
> @@ -1065,14 +1101,14 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> continue;
>
> id = (regval >> 8) & PMIC_ARB_PPID_MASK;
> - pmic_arb->ppid_to_apid[id] = apid | PMIC_ARB_APID_VALID;
> + bus->ppid_to_apid[id] = apid | PMIC_ARB_APID_VALID;
> apidd->ppid = id;
> if (id == ppid) {
> apid |= PMIC_ARB_APID_VALID;
> break;
> }
> }
> - pmic_arb->last_apid = apid & ~PMIC_ARB_APID_VALID;
> + bus->last_apid = apid & ~PMIC_ARB_APID_VALID;
>
> return apid;
> }
> @@ -1104,21 +1140,22 @@ static int pmic_arb_get_core_resources_v2(struct platform_device *pdev,
> return pmic_arb_get_obsrvr_chnls_v2(pdev);
> }
>
> -static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> +static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb_bus *bus, u16 ppid)
> {
> u16 apid_valid;
>
> - apid_valid = pmic_arb->ppid_to_apid[ppid];
> + apid_valid = bus->ppid_to_apid[ppid];
> if (!(apid_valid & PMIC_ARB_APID_VALID))
> - apid_valid = pmic_arb_find_apid(pmic_arb, ppid);
> + apid_valid = pmic_arb_find_apid(bus, ppid);
> if (!(apid_valid & PMIC_ARB_APID_VALID))
> return -ENODEV;
>
> return apid_valid & ~PMIC_ARB_APID_VALID;
> }
>
> -static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
> +static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb_bus *bus)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> struct apid_data *apidd;
> struct apid_data *prev_apidd;
> u16 i, apid, ppid, apid_max;
> @@ -1140,9 +1177,9 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
> * where N = number of APIDs supported by the primary bus and
> * M = number of APIDs supported by the secondary bus
> */
> - apidd = &pmic_arb->apid_data[pmic_arb->base_apid];
> - apid_max = pmic_arb->base_apid + pmic_arb->apid_count;
> - for (i = pmic_arb->base_apid; i < apid_max; i++, apidd++) {
> + apidd = &bus->apid_data[bus->base_apid];
> + apid_max = bus->base_apid + bus->apid_count;
> + for (i = bus->base_apid; i < apid_max; i++, apidd++) {
> offset = pmic_arb->ver_ops->apid_map_offset(i);
> if (offset >= pmic_arb->core_size)
> break;
> @@ -1153,19 +1190,18 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
> ppid = (regval >> 8) & PMIC_ARB_PPID_MASK;
> is_irq_ee = PMIC_ARB_CHAN_IS_IRQ_OWNER(regval);
>
> - regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb,
> - i));
> + regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(bus, i));
> apidd->write_ee = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
>
> apidd->irq_ee = is_irq_ee ? apidd->write_ee : INVALID_EE;
>
> - valid = pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID;
> - apid = pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
> - prev_apidd = &pmic_arb->apid_data[apid];
> + valid = bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID;
> + apid = bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
> + prev_apidd = &bus->apid_data[apid];
>
> if (!valid || apidd->write_ee == pmic_arb->ee) {
> /* First PPID mapping or one for this EE */
> - pmic_arb->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
> + bus->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
> } else if (valid && is_irq_ee &&
> prev_apidd->write_ee == pmic_arb->ee) {
> /*
> @@ -1176,42 +1212,43 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
> }
>
> apidd->ppid = ppid;
> - pmic_arb->last_apid = i;
> + bus->last_apid = i;
> }
>
> /* Dump the mapping table for debug purposes. */
> - dev_dbg(&pmic_arb->spmic->dev, "PPID APID Write-EE IRQ-EE\n");
> + dev_dbg(&bus->spmic->dev, "PPID APID Write-EE IRQ-EE\n");
> for (ppid = 0; ppid < PMIC_ARB_MAX_PPID; ppid++) {
> - apid = pmic_arb->ppid_to_apid[ppid];
> + apid = bus->ppid_to_apid[ppid];
> if (apid & PMIC_ARB_APID_VALID) {
> apid &= ~PMIC_ARB_APID_VALID;
> - apidd = &pmic_arb->apid_data[apid];
> - dev_dbg(&pmic_arb->spmic->dev, "%#03X %3u %2u %2u\n",
> - ppid, apid, apidd->write_ee, apidd->irq_ee);
> + apidd = &bus->apid_data[apid];
> + dev_dbg(&bus->spmic->dev, "%#03X %3u %2u %2u\n",
> + ppid, apid, apidd->write_ee, apidd->irq_ee);
> }
> }
>
> return 0;
> }
>
> -static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> +static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb_bus *bus, u16 ppid)
> {
> - if (!(pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID))
> + if (!(bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID))
> return -ENODEV;
>
> - return pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
> + return bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
> }
>
> /* v2 offset per ppid and per ee */
> -static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> - enum pmic_arb_channel ch_type)
> +static int pmic_arb_offset_v2(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
> + enum pmic_arb_channel ch_type)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u16 apid;
> u16 ppid;
> int rc;
>
> ppid = sid << 8 | ((addr >> 8) & 0xFF);
> - rc = pmic_arb_ppid_to_apid_v2(pmic_arb, ppid);
> + rc = pmic_arb_ppid_to_apid_v2(bus, ppid);
> if (rc < 0)
> return rc;
>
> @@ -1219,33 +1256,34 @@ static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> return 0x1000 * pmic_arb->ee + 0x8000 * apid;
> }
>
> -static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
> +static int pmic_arb_init_apid_v5(struct spmi_pmic_arb_bus *bus, int index)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> int ret;
>
> if (index) {
> - dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
> index);
> return -EINVAL;
> }
>
> - pmic_arb->base_apid = 0;
> - pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + bus->base_apid = 0;
> + bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> PMIC_ARB_FEATURES_PERIPH_MASK;
>
> - if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
> - dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
> - pmic_arb->base_apid + pmic_arb->apid_count);
> + if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) {
> + dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n",
> + bus->base_apid + bus->apid_count);
> return -EINVAL;
> }
>
> - ret = pmic_arb_init_apid_min_max(pmic_arb);
> + ret = pmic_arb_init_apid_min_max(bus);
> if (ret)
> return ret;
>
> - ret = pmic_arb_read_apid_map_v5(pmic_arb);
> + ret = pmic_arb_read_apid_map_v5(bus);
> if (ret) {
> - dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> + dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> ret);
> return ret;
> }
> @@ -1257,15 +1295,16 @@ static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
> * v5 offset per ee and per apid for observer channels and per apid for
> * read/write channels.
> */
> -static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> - enum pmic_arb_channel ch_type)
> +static int pmic_arb_offset_v5(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
> + enum pmic_arb_channel ch_type)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u16 apid;
> int rc;
> u32 offset = 0;
> u16 ppid = (sid << 8) | (addr >> 8);
>
> - rc = pmic_arb_ppid_to_apid_v5(pmic_arb, ppid);
> + rc = pmic_arb_ppid_to_apid_v5(bus, ppid);
> if (rc < 0)
> return rc;
>
> @@ -1275,8 +1314,8 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> offset = 0x10000 * pmic_arb->ee + 0x80 * apid;
> break;
> case PMIC_ARB_CHANNEL_RW:
> - if (pmic_arb->apid_data[apid].write_ee != pmic_arb->ee) {
> - dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
> + if (bus->apid_data[apid].write_ee != pmic_arb->ee) {
> + dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
> sid, addr);
> return -EPERM;
> }
> @@ -1303,38 +1342,39 @@ static int pmic_arb_get_core_resources_v7(struct platform_device *pdev,
> * Only v7 supports 2 buses. Each bus will get a different apid count, read
> * from different registers.
> */
> -static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
> +static int pmic_arb_init_apid_v7(struct spmi_pmic_arb_bus *bus, int index)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> int ret;
>
> if (index == 0) {
> - pmic_arb->base_apid = 0;
> - pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + bus->base_apid = 0;
> + bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> PMIC_ARB_FEATURES_PERIPH_MASK;
> } else if (index == 1) {
> - pmic_arb->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + bus->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> PMIC_ARB_FEATURES_PERIPH_MASK;
> - pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
> + bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
> PMIC_ARB_FEATURES_PERIPH_MASK;
> } else {
> - dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> - index);
> + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
> + bus->id);
> return -EINVAL;
> }
>
> - if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
> - dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
> - pmic_arb->base_apid + pmic_arb->apid_count);
> + if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) {
> + dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n",
> + bus->base_apid + bus->apid_count);
> return -EINVAL;
> }
>
> - ret = pmic_arb_init_apid_min_max(pmic_arb);
> + ret = pmic_arb_init_apid_min_max(bus);
> if (ret)
> return ret;
>
> - ret = pmic_arb_read_apid_map_v5(pmic_arb);
> + ret = pmic_arb_read_apid_map_v5(bus);
> if (ret) {
> - dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> + dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> ret);
> return ret;
> }
> @@ -1346,15 +1386,16 @@ static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
> * v7 offset per ee and per apid for observer channels and per apid for
> * read/write channels.
> */
> -static int pmic_arb_offset_v7(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> - enum pmic_arb_channel ch_type)
> +static int pmic_arb_offset_v7(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
> + enum pmic_arb_channel ch_type)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u16 apid;
> int rc;
> u32 offset = 0;
> u16 ppid = (sid << 8) | (addr >> 8);
>
> - rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid);
> + rc = pmic_arb->ver_ops->ppid_to_apid(bus, ppid);
> if (rc < 0)
> return rc;
>
> @@ -1364,8 +1405,8 @@ static int pmic_arb_offset_v7(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> offset = 0x8000 * pmic_arb->ee + 0x20 * apid;
> break;
> case PMIC_ARB_CHANNEL_RW:
> - if (pmic_arb->apid_data[apid].write_ee != pmic_arb->ee) {
> - dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
> + if (bus->apid_data[apid].write_ee != pmic_arb->ee) {
> + dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
> sid, addr);
> return -EPERM;
> }
> @@ -1387,104 +1428,110 @@ static u32 pmic_arb_fmt_cmd_v2(u8 opc, u8 sid, u16 addr, u8 bc)
> }
>
> static void __iomem *
> -pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
> +pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
> {
> - return pmic_arb->intr + 0x20 * m + 0x4 * n;
> + return bus->intr + 0x20 * m + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
> +pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
> {
> - return pmic_arb->intr + 0x100000 + 0x1000 * m + 0x4 * n;
> + return bus->intr + 0x100000 + 0x1000 * m + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
> +pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
> {
> - return pmic_arb->intr + 0x200000 + 0x1000 * m + 0x4 * n;
> + return bus->intr + 0x200000 + 0x1000 * m + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
> +pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
> {
> - return pmic_arb->intr + 0x10000 * m + 0x4 * n;
> + return bus->intr + 0x10000 * m + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
> +pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
> {
> - return pmic_arb->intr + 0x1000 * m + 0x4 * n;
> + return bus->intr + 0x1000 * m + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_acc_enable_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_acc_enable_v1(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0x200 + 0x4 * n;
> + return bus->intr + 0x200 + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_acc_enable_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_acc_enable_v2(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0x1000 * n;
> + return bus->intr + 0x1000 * n;
> }
>
> static void __iomem *
> -pmic_arb_acc_enable_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_acc_enable_v5(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x100 + 0x10000 * n;
> }
>
> static void __iomem *
> -pmic_arb_acc_enable_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_acc_enable_v7(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x100 + 0x1000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_status_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_status_v1(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0x600 + 0x4 * n;
> + return bus->intr + 0x600 + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_status_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_status_v2(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0x4 + 0x1000 * n;
> + return bus->intr + 0x4 + 0x1000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_status_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_status_v5(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x104 + 0x10000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_status_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_status_v7(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x104 + 0x1000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_clear_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_clear_v1(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0xA00 + 0x4 * n;
> + return bus->intr + 0xA00 + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_clear_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_clear_v2(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0x8 + 0x1000 * n;
> + return bus->intr + 0x8 + 0x1000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_clear_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_clear_v5(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x108 + 0x10000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_clear_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_clear_v7(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x108 + 0x1000 * n;
> }
>
> @@ -1504,9 +1551,9 @@ static u32 pmic_arb_apid_map_offset_v7(u16 n)
> }
>
> static void __iomem *
> -pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_apid_owner_v2(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->cnfg + 0x700 + 0x4 * n;
> + return bus->cnfg + 0x700 + 0x4 * n;
> }
>
> /*
> @@ -1515,9 +1562,9 @@ pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
> * 0.
> */
> static void __iomem *
> -pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_apid_owner_v7(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->cnfg + 0x4 * (n - pmic_arb->base_apid);
> + return bus->cnfg + 0x4 * (n - bus->base_apid);
> }
>
> static const struct pmic_arb_ver_ops pmic_arb_v1 = {
> @@ -1607,29 +1654,159 @@ static const struct irq_domain_ops pmic_arb_irq_domain_ops = {
> .translate = qpnpint_irq_domain_translate,
> };
>
> +static int spmi_pmic_arb_bus_init(struct platform_device *pdev,
> + struct device_node *node,
> + struct spmi_pmic_arb *pmic_arb)
> +{
> + int bus_index = pmic_arb->buses_available;
> + struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[bus_index];
> + struct device *dev = &pdev->dev;
> + struct spmi_controller *ctrl;
> + void __iomem *intr;
> + void __iomem *cnfg;
> + int index, ret;
> + u32 irq;
> +
> + ctrl = devm_spmi_controller_alloc(dev, sizeof(*ctrl));
> + if (IS_ERR(ctrl))
> + return PTR_ERR(ctrl);
> +
> + ctrl->cmd = pmic_arb_cmd;
> + ctrl->read_cmd = pmic_arb_read_cmd;
> + ctrl->write_cmd = pmic_arb_write_cmd;
> +
> + bus = spmi_controller_get_drvdata(ctrl);
> + bus->spmic = ctrl;
> +
> + bus->ppid_to_apid = devm_kcalloc(dev, PMIC_ARB_MAX_PPID,
> + sizeof(*bus->ppid_to_apid),
> + GFP_KERNEL);
> + if (!bus->ppid_to_apid)
> + return -ENOMEM;
> +
> + bus->apid_data = devm_kcalloc(dev, pmic_arb->max_periphs,
> + sizeof(*bus->apid_data),
> + GFP_KERNEL);
> + if (!bus->apid_data)
> + return -ENOMEM;
> +
> + index = of_property_match_string(node, "reg-names", "cnfg");
> + if (index < 0) {
> + dev_err(dev, "cnfg reg region missing");
> + return -EINVAL;
> + }
> +
> + cnfg = devm_of_iomap(dev, node, index, NULL);
> + if (IS_ERR(cnfg))
> + return PTR_ERR(cnfg);
> +
> + index = of_property_match_string(node, "reg-names", "intr");
> + if (index < 0) {
> + dev_err(dev, "intr reg region missing");
> + return -EINVAL;
> + }
> +
> + intr = devm_of_iomap(dev, node, index, NULL);
> + if (IS_ERR(intr))
> + return PTR_ERR(intr);
> +
> + irq = of_irq_get_byname(node, "periph_irq");
> + if (irq < 0)
> + return irq;
> +
> + bus->pmic_arb = pmic_arb;
> + bus->intr = intr;
> + bus->cnfg = cnfg;
> + bus->irq = irq;
> + bus->id = bus_index;
> +
> + ret = pmic_arb->ver_ops->init_apid(bus, bus_index);
> + if (ret)
> + return ret;
> +
> + dev_dbg(&pdev->dev, "adding irq domain for bus %d\n", bus_index);
> +
> + bus->domain = irq_domain_add_tree(dev->of_node,
> + &pmic_arb_irq_domain_ops, bus);
> + if (!bus->domain) {
> + dev_err(&pdev->dev, "unable to create irq_domain\n");
> + return -ENOMEM;
> + }
> +
> + irq_set_chained_handler_and_data(bus->irq,
> + pmic_arb_chained_irq, bus);
> +
> + bus->spmic->dev.of_node = node;
> + dev_set_name(&bus->spmic->dev, "spmi-%d", bus_index);
> +
> + ret = devm_spmi_controller_add(dev, bus->spmic);
> + if (ret)
> + return ret;
> +
> + pmic_arb->buses_available++;
> +
> + return 0;
> +}
> +
> +static int spmi_pmic_arb_register_buses(struct spmi_pmic_arb *pmic_arb,
> + struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct device_node *node = dev->of_node;
> + struct device_node *child;
> + int ret;
> +
> + /* legacy mode doesn't provide child node for the bus */
> + if (of_device_is_compatible(node, "qcom,spmi-pmic-arb"))
> + return spmi_pmic_arb_bus_init(pdev, node, pmic_arb);
> +
> + for_each_available_child_of_node(node, child) {
> + if (of_node_name_eq(child, "spmi")) {
> + ret = spmi_pmic_arb_bus_init(pdev, child, pmic_arb);
> + if (ret)
> + return ret;
> + }
> + }
> +
> + return ret;
> +}
> +
> +static void spmi_pmic_arb_deregister_buses(struct spmi_pmic_arb *pmic_arb)
> +{
> + int i;
> +
> + for (i = 0; i < PMIC_ARB_MAX_BUSES; i++) {
> + struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[i];
> +
> + irq_set_chained_handler_and_data(bus->irq,
> + NULL, NULL);
> + irq_domain_remove(bus->domain);
> + }
> +}
> +
> static int spmi_pmic_arb_probe(struct platform_device *pdev)
> {
> struct spmi_pmic_arb *pmic_arb;
> - struct spmi_controller *ctrl;
> + struct device *dev = &pdev->dev;
> struct resource *res;
> void __iomem *core;
> u32 channel, ee, hw_ver;
> int err;
>
> - ctrl = devm_spmi_controller_alloc(&pdev->dev, sizeof(*pmic_arb));
> - if (IS_ERR(ctrl))
> - return PTR_ERR(ctrl);
> -
> - pmic_arb = spmi_controller_get_drvdata(ctrl);
> - pmic_arb->spmic = ctrl;
> + pmic_arb = devm_kzalloc(dev, sizeof(*pmic_arb), GFP_KERNEL);
> + if (!pmic_arb)
> + return -ENOMEM;
>
> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
> - core = devm_ioremap(&ctrl->dev, res->start, resource_size(res));
> + core = devm_ioremap(dev, res->start, resource_size(res));
> if (IS_ERR(core))
> return PTR_ERR(core);
>
> pmic_arb->core_size = resource_size(res);
>
> + platform_set_drvdata(pdev, pmic_arb);
> + raw_spin_lock_init(&pmic_arb->lock);
> +
> hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
>
> if (hw_ver < PMIC_ARB_VERSION_V2_MIN)
> @@ -1643,30 +1820,12 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> else
> pmic_arb->ver_ops = &pmic_arb_v7;
>
> - dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
> - pmic_arb->ver_ops->ver_str, hw_ver);
> -
> err = pmic_arb->ver_ops->get_core_resources(pdev, core);
> if (err)
> return err;
>
> - err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
> - if (err)
> - return err;
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr");
> - pmic_arb->intr = devm_ioremap_resource(&ctrl->dev, res);
> - if (IS_ERR(pmic_arb->intr))
> - return PTR_ERR(pmic_arb->intr);
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cnfg");
> - pmic_arb->cnfg = devm_ioremap_resource(&ctrl->dev, res);
> - if (IS_ERR(pmic_arb->cnfg))
> - return PTR_ERR(pmic_arb->cnfg);
> -
> - pmic_arb->irq = platform_get_irq_byname(pdev, "periph_irq");
> - if (pmic_arb->irq < 0)
> - return pmic_arb->irq;
> + dev_info(dev, "PMIC arbiter version %s (0x%x)\n",
> + pmic_arb->ver_ops->ver_str, hw_ver);
>
> err = of_property_read_u32(pdev->dev.of_node, "qcom,channel", &channel);
> if (err) {
> @@ -1695,46 +1854,19 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
>
> pmic_arb->ee = ee;
>
> - platform_set_drvdata(pdev, ctrl);
> - raw_spin_lock_init(&pmic_arb->lock);
> -
> - ctrl->cmd = pmic_arb_cmd;
> - ctrl->read_cmd = pmic_arb_read_cmd;
> - ctrl->write_cmd = pmic_arb_write_cmd;
> -
> - dev_dbg(&pdev->dev, "adding irq domain\n");
> - pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node,
> - &pmic_arb_irq_domain_ops, pmic_arb);
> - if (!pmic_arb->domain) {
> - dev_err(&pdev->dev, "unable to create irq_domain\n");
> - return -ENOMEM;
> - }
> -
> - irq_set_chained_handler_and_data(pmic_arb->irq, pmic_arb_chained_irq,
> - pmic_arb);
> - err = spmi_controller_add(ctrl);
> - if (err)
> - goto err_domain_remove;
> -
> - return 0;
> -
> -err_domain_remove:
> - irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL);
> - irq_domain_remove(pmic_arb->domain);
> - return err;
> + return spmi_pmic_arb_register_buses(pmic_arb, pdev);
> }
>
> static void spmi_pmic_arb_remove(struct platform_device *pdev)
> {
> - struct spmi_controller *ctrl = platform_get_drvdata(pdev);
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> - spmi_controller_remove(ctrl);
> - irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL);
> - irq_domain_remove(pmic_arb->domain);
> + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
> +
> + spmi_pmic_arb_deregister_buses(pmic_arb);
> }
>
> static const struct of_device_id spmi_pmic_arb_match_table[] = {
> { .compatible = "qcom,spmi-pmic-arb", },
> + { .compatible = "qcom,x1e80100-spmi-pmic-arb", },
> {},
> };
> MODULE_DEVICE_TABLE(of, spmi_pmic_arb_match_table);
>
The change is quite long and it's hard to disinguish the introduction of
spmi_pmic_arb_bus and the addition of 2 busses for v7.
Could you split in 2 by:
1) adding spmi_pmic_arb_bus but only registering a single bus
2) add the plumbing for 2 busses for v7
it would help review and bisecting.
Thanks,
Neil
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 5/5] spmi: pmic-arb: Add multi bus support
@ 2024-03-28 9:05 ` Neil Armstrong
0 siblings, 0 replies; 34+ messages in thread
From: Neil Armstrong @ 2024-03-28 9:05 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
Hi Abel,
On 26/03/2024 17:28, Abel Vesa wrote:
> Starting with HW version 7, there are actually two separate buses
> (with two separate sets of wires). So in order to support both
> buses, we need to register a separate spmi controller for each one.
> Add a separate compatible for v7 only, but allow the legacy platforms
> that have v7 to still work with the old one, for DT backwards
> compatibility.
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> drivers/spmi/spmi-pmic-arb.c | 726 +++++++++++++++++++++++++------------------
> 1 file changed, 429 insertions(+), 297 deletions(-)
>
> diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
> index 188252bfb95f..ca0f42952445 100644
> --- a/drivers/spmi/spmi-pmic-arb.c
> +++ b/drivers/spmi/spmi-pmic-arb.c
> @@ -13,6 +13,8 @@
> #include <linux/kernel.h>
> #include <linux/module.h>
> #include <linux/of.h>
> +#include <linux/of_address.h>
> +#include <linux/of_irq.h>
> #include <linux/platform_device.h>
> #include <linux/slab.h>
> #include <linux/spmi.h>
> @@ -94,6 +96,8 @@ enum pmic_arb_channel {
> PMIC_ARB_CHANNEL_OBS,
> };
>
> +#define PMIC_ARB_MAX_BUSES 2
> +
> /* Maximum number of support PMIC peripherals */
> #define PMIC_ARB_MAX_PERIPHS 512
> #define PMIC_ARB_MAX_PERIPHS_V7 1024
> @@ -125,58 +129,68 @@ struct apid_data {
> u8 irq_ee;
> };
>
> +struct spmi_pmic_arb;
> +
> /**
> - * struct spmi_pmic_arb - SPMI PMIC Arbiter object
> + * struct spmi_pmic_arb_bus - SPMI PMIC Arbiter Bus object
> *
> - * @rd_base: on v1 "core", on v2 "observer" register base off DT.
> - * @wr_base: on v1 "core", on v2 "chnls" register base off DT.
> * @intr: address of the SPMI interrupt control registers.
> * @cnfg: address of the PMIC Arbiter configuration registers.
> - * @lock: lock to synchronize accesses.
> - * @channel: execution environment channel to use for accesses.
> - * @irq: PMIC ARB interrupt.
> - * @ee: the current Execution Environment
> - * @bus_instance: on v7: 0 = primary SPMI bus, 1 = secondary SPMI bus
> - * @min_apid: minimum APID (used for bounding IRQ search)
> - * @max_apid: maximum APID
> + * @domain: irq domain object for PMIC IRQ domain
> * @base_apid: on v7: minimum APID associated with the particular SPMI
> * bus instance
> * @apid_count: on v5 and v7: number of APIDs associated with the
> * particular SPMI bus instance
> * @mapping_table: in-memory copy of PPID -> APID mapping table.
> - * @domain: irq domain object for PMIC IRQ domain
> - * @spmic: SPMI controller object
> - * @ver_ops: version dependent operations.
> * @ppid_to_apid: in-memory copy of PPID -> APID mapping table.
> - * @last_apid: Highest value APID in use
> * @apid_data: Table of data for all APIDs
> + * @last_apid: Highest value APID in use
> + * @irq: PMIC ARB interrupt.
Those are moved for no reason, and it doesn't match anymore with the actual fields in spmi_pmic_arb_bus,
please fix.
> + */
> +struct spmi_pmic_arb_bus {
> + struct spmi_pmic_arb *pmic_arb;
> + struct irq_domain *domain;
> + void __iomem *intr;
> + void __iomem *cnfg;
> + struct spmi_controller *spmic;
> + u16 base_apid;
> + int apid_count;
> + u32 *mapping_table;
> + DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS);
> + u16 *ppid_to_apid;
> + u16 last_apid;
> + struct apid_data *apid_data;
> + u16 min_apid;
> + u16 max_apid;
> + int irq;
> + u8 id;
> +};
> +
> +/**
> + * struct spmi_pmic_arb - SPMI PMIC Arbiter object
> + *
> + * @rd_base: on v1 "core", on v2 "observer" register base off DT.
> + * @wr_base: on v1 "core", on v2 "chnls" register base off DT.
> + * @lock: lock to synchronize accesses.
> + * @channel: execution environment channel to use for accesses.
> + * @ee: the current Execution Environment
> + * @min_apid: minimum APID (used for bounding IRQ search)
> + * @max_apid: maximum APID
> + * @ver_ops: version dependent operations.
> * @max_periphs: Number of elements in apid_data[]
> */
> struct spmi_pmic_arb {
> void __iomem *rd_base;
> void __iomem *wr_base;
> - void __iomem *intr;
> - void __iomem *cnfg;
> void __iomem *core;
> resource_size_t core_size;
> raw_spinlock_t lock;
> u8 channel;
> - int irq;
> u8 ee;
> - u32 bus_instance;
> - u16 min_apid;
> - u16 max_apid;
> - u16 base_apid;
> - int apid_count;
> - u32 *mapping_table;
> - DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS);
> - struct irq_domain *domain;
> - struct spmi_controller *spmic;
> const struct pmic_arb_ver_ops *ver_ops;
> - u16 *ppid_to_apid;
> - u16 last_apid;
> - struct apid_data *apid_data;
> int max_periphs;
> + struct spmi_pmic_arb_bus buses[PMIC_ARB_MAX_BUSES];
> + int buses_available;
> };
Same here, please refresh/resync the struct documentation
I get the following:
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'pmic_arb' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'spmic' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'mapping_table_valid' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'min_apid' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'max_apid' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:167: warning: Function parameter or struct member 'id' not described in 'spmi_pmic_arb_bus'
drivers/spmi/spmi-pmic-arb.c:194: warning: Function parameter or struct member 'core' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:194: warning: Function parameter or struct member 'core_size' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:194: warning: Function parameter or struct member 'buses' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:194: warning: Function parameter or struct member 'buses_available' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:194: warning: Excess struct member 'min_apid' description in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:194: warning: Excess struct member 'max_apid' description in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:236: warning: Function parameter or struct member 'get_core_resources' not described in 'pmic_arb_ver_ops'
drivers/spmi/spmi-pmic-arb.c:258: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_read_data'
drivers/spmi/spmi-pmic-arb.c:272: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_write_data'
>
> /**
> @@ -204,21 +218,21 @@ struct spmi_pmic_arb {
> struct pmic_arb_ver_ops {
> const char *ver_str;
> int (*get_core_resources)(struct platform_device *pdev, void __iomem *core);
> - int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
> - int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
> + int (*init_apid)(struct spmi_pmic_arb_bus *bus, int index);
> + int (*ppid_to_apid)(struct spmi_pmic_arb_bus *bus, u16 ppid);
> /* spmi commands (read_cmd, write_cmd, cmd) functionality */
> - int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> - enum pmic_arb_channel ch_type);
> + int (*offset)(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
> + enum pmic_arb_channel ch_type);
> u32 (*fmt_cmd)(u8 opc, u8 sid, u16 addr, u8 bc);
> int (*non_data_cmd)(struct spmi_controller *ctrl, u8 opc, u8 sid);
> /* Interrupts controller functionality (offset of PIC registers) */
> - void __iomem *(*owner_acc_status)(struct spmi_pmic_arb *pmic_arb, u8 m,
> + void __iomem *(*owner_acc_status)(struct spmi_pmic_arb_bus *bus, u8 m,
> u16 n);
> - void __iomem *(*acc_enable)(struct spmi_pmic_arb *pmic_arb, u16 n);
> - void __iomem *(*irq_status)(struct spmi_pmic_arb *pmic_arb, u16 n);
> - void __iomem *(*irq_clear)(struct spmi_pmic_arb *pmic_arb, u16 n);
> + void __iomem *(*acc_enable)(struct spmi_pmic_arb_bus *bus, u16 n);
> + void __iomem *(*irq_status)(struct spmi_pmic_arb_bus *bus, u16 n);
> + void __iomem *(*irq_clear)(struct spmi_pmic_arb_bus *bus, u16 n);
> u32 (*apid_map_offset)(u16 n);
> - void __iomem *(*apid_owner)(struct spmi_pmic_arb *pmic_arb, u16 n);
> + void __iomem *(*apid_owner)(struct spmi_pmic_arb_bus *bus, u16 n);
> };
>
> static inline void pmic_arb_base_write(struct spmi_pmic_arb *pmic_arb,
> @@ -266,13 +280,14 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
> void __iomem *base, u8 sid, u16 addr,
> enum pmic_arb_channel ch_type)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u32 status = 0;
> u32 timeout = PMIC_ARB_TIMEOUT_US;
> u32 offset;
> int rc;
>
> - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, ch_type);
> + rc = pmic_arb->ver_ops->offset(bus, sid, addr, ch_type);
> if (rc < 0)
> return rc;
>
> @@ -284,21 +299,21 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
>
> if (status & PMIC_ARB_STATUS_DONE) {
> if (status & PMIC_ARB_STATUS_DENIED) {
> - dev_err(&ctrl->dev, "%s: %#x %#x: transaction denied (%#x)\n",
> - __func__, sid, addr, status);
> + dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction denied (%#x)\n",
> + __func__, bus->id, sid, addr, status);
Won't "dev_err(&ctrl->dev" already print the bus id ?
> return -EPERM;
> }
>
> if (status & PMIC_ARB_STATUS_FAILURE) {
> - dev_err(&ctrl->dev, "%s: %#x %#x: transaction failed (%#x)\n",
> - __func__, sid, addr, status);
> + dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction failed (%#x) reg: 0x%x\n",
> + __func__, bus->id, sid, addr, status, offset);
> WARN_ON(1);
> return -EIO;
> }
>
> if (status & PMIC_ARB_STATUS_DROPPED) {
> - dev_err(&ctrl->dev, "%s: %#x %#x: transaction dropped (%#x)\n",
> - __func__, sid, addr, status);
> + dev_err(&ctrl->dev, "%s: %#x %#x %#x: transaction dropped (%#x)\n",
> + __func__, bus->id, sid, addr, status);
> return -EIO;
> }
>
> @@ -307,8 +322,8 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
> udelay(1);
> }
>
> - dev_err(&ctrl->dev, "%s: %#x %#x: timeout, status %#x\n",
> - __func__, sid, addr, status);
> + dev_err(&ctrl->dev, "%s: %#x %#x %#x: timeout, status %#x\n",
> + __func__, bus->id, sid, addr, status);
> return -ETIMEDOUT;
> }
>
> @@ -316,12 +331,13 @@ static int
> pmic_arb_non_data_cmd_v1(struct spmi_controller *ctrl, u8 opc, u8 sid)
> {
> struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[0];
> unsigned long flags;
> u32 cmd;
> int rc;
> u32 offset;
>
> - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, 0, PMIC_ARB_CHANNEL_RW);
> + rc = pmic_arb->ver_ops->offset(bus, sid, 0, PMIC_ARB_CHANNEL_RW);
> if (rc < 0)
> return rc;
>
> @@ -357,20 +373,21 @@ static int pmic_arb_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid)
> return pmic_arb->ver_ops->non_data_cmd(ctrl, opc, sid);
> }
>
> -static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc, u8 sid,
> +static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb_bus *bus, u8 opc, u8 sid,
> u16 addr, size_t len, u32 *cmd, u32 *offset)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u8 bc = len - 1;
> int rc;
>
> - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr,
> + rc = pmic_arb->ver_ops->offset(bus, sid, addr,
> PMIC_ARB_CHANNEL_OBS);
> if (rc < 0)
> return rc;
>
> *offset = rc;
> if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
> - dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
> + dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
> PMIC_ARB_MAX_TRANS_BYTES, len);
> return -EINVAL;
> }
> @@ -394,7 +411,8 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
> u32 offset, u8 sid, u16 addr, u8 *buf,
> size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u8 bc = len - 1;
> int rc;
>
> @@ -416,12 +434,13 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
> static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
> u16 addr, u8 *buf, size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> unsigned long flags;
> u32 cmd, offset;
> int rc;
>
> - rc = pmic_arb_fmt_read_cmd(pmic_arb, opc, sid, addr, len, &cmd,
> + rc = pmic_arb_fmt_read_cmd(bus, opc, sid, addr, len, &cmd,
> &offset);
> if (rc)
> return rc;
> @@ -433,21 +452,22 @@ static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
> return rc;
> }
>
> -static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc,
> +static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb_bus *bus, u8 opc,
> u8 sid, u16 addr, size_t len, u32 *cmd,
> u32 *offset)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u8 bc = len - 1;
> int rc;
>
> - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr,
> + rc = pmic_arb->ver_ops->offset(bus, sid, addr,
> PMIC_ARB_CHANNEL_RW);
> if (rc < 0)
> return rc;
>
> *offset = rc;
> if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
> - dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
> + dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
> PMIC_ARB_MAX_TRANS_BYTES, len);
> return -EINVAL;
> }
> @@ -473,7 +493,8 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
> u32 offset, u8 sid, u16 addr,
> const u8 *buf, size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u8 bc = len - 1;
>
> /* Write data to FIFOs */
> @@ -492,12 +513,13 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
> static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
> u16 addr, const u8 *buf, size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> unsigned long flags;
> u32 cmd, offset;
> int rc;
>
> - rc = pmic_arb_fmt_write_cmd(pmic_arb, opc, sid, addr, len, &cmd,
> + rc = pmic_arb_fmt_write_cmd(bus, opc, sid, addr, len, &cmd,
> &offset);
> if (rc)
> return rc;
> @@ -513,18 +535,19 @@ static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
> static int pmic_arb_masked_write(struct spmi_controller *ctrl, u8 sid, u16 addr,
> const u8 *buf, const u8 *mask, size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u32 read_cmd, read_offset, write_cmd, write_offset;
> u8 temp[PMIC_ARB_MAX_TRANS_BYTES];
> unsigned long flags;
> int rc, i;
>
> - rc = pmic_arb_fmt_read_cmd(pmic_arb, SPMI_CMD_EXT_READL, sid, addr, len,
> + rc = pmic_arb_fmt_read_cmd(bus, SPMI_CMD_EXT_READL, sid, addr, len,
> &read_cmd, &read_offset);
> if (rc)
> return rc;
>
> - rc = pmic_arb_fmt_write_cmd(pmic_arb, SPMI_CMD_EXT_WRITEL, sid, addr,
> + rc = pmic_arb_fmt_write_cmd(bus, SPMI_CMD_EXT_WRITEL, sid, addr,
> len, &write_cmd, &write_offset);
> if (rc)
> return rc;
> @@ -567,25 +590,25 @@ struct spmi_pmic_arb_qpnpint_type {
> static void qpnpint_spmi_write(struct irq_data *d, u8 reg, void *buf,
> size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> u8 sid = hwirq_to_sid(d->hwirq);
> u8 per = hwirq_to_per(d->hwirq);
>
> - if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid,
> + if (pmic_arb_write_cmd(bus->spmic, SPMI_CMD_EXT_WRITEL, sid,
> (per << 8) + reg, buf, len))
> - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n",
> + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\n",
> d->irq);
> }
>
> static void qpnpint_spmi_read(struct irq_data *d, u8 reg, void *buf, size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> u8 sid = hwirq_to_sid(d->hwirq);
> u8 per = hwirq_to_per(d->hwirq);
>
> - if (pmic_arb_read_cmd(pmic_arb->spmic, SPMI_CMD_EXT_READL, sid,
> + if (pmic_arb_read_cmd(bus->spmic, SPMI_CMD_EXT_READL, sid,
> (per << 8) + reg, buf, len))
> - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n",
> + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\n",
> d->irq);
> }
>
> @@ -593,47 +616,49 @@ static int qpnpint_spmi_masked_write(struct irq_data *d, u8 reg,
> const void *buf, const void *mask,
> size_t len)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> u8 sid = hwirq_to_sid(d->hwirq);
> u8 per = hwirq_to_per(d->hwirq);
> int rc;
>
> - rc = pmic_arb_masked_write(pmic_arb->spmic, sid, (per << 8) + reg, buf,
> + rc = pmic_arb_masked_write(bus->spmic, sid, (per << 8) + reg, buf,
> mask, len);
> if (rc)
> - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x rc=%d\n",
> + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x rc=%d\n",
> d->irq, rc);
> return rc;
> }
>
> -static void cleanup_irq(struct spmi_pmic_arb *pmic_arb, u16 apid, int id)
> +static void cleanup_irq(struct spmi_pmic_arb_bus *bus, u16 apid, int id)
> {
> - u16 ppid = pmic_arb->apid_data[apid].ppid;
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> + u16 ppid = bus->apid_data[apid].ppid;
> u8 sid = ppid >> 8;
> u8 per = ppid & 0xFF;
> u8 irq_mask = BIT(id);
>
> - dev_err_ratelimited(&pmic_arb->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n",
> - __func__, apid, sid, per, id);
> - writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(pmic_arb, apid));
> + dev_err_ratelimited(&bus->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n",
> + __func__, apid, sid, per, id);
> + writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(bus, apid));
> }
>
> -static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid)
> +static int periph_interrupt(struct spmi_pmic_arb_bus *bus, u16 apid)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> unsigned int irq;
> u32 status, id;
> int handled = 0;
> - u8 sid = (pmic_arb->apid_data[apid].ppid >> 8) & 0xF;
> - u8 per = pmic_arb->apid_data[apid].ppid & 0xFF;
> + u8 sid = (bus->apid_data[apid].ppid >> 8) & 0xF;
> + u8 per = bus->apid_data[apid].ppid & 0xFF;
>
> - status = readl_relaxed(pmic_arb->ver_ops->irq_status(pmic_arb, apid));
> + status = readl_relaxed(pmic_arb->ver_ops->irq_status(bus, apid));
> while (status) {
> id = ffs(status) - 1;
> status &= ~BIT(id);
> - irq = irq_find_mapping(pmic_arb->domain,
> - spec_to_hwirq(sid, per, id, apid));
> + irq = irq_find_mapping(bus->domain,
> + spec_to_hwirq(sid, per, id, apid));
> if (irq == 0) {
> - cleanup_irq(pmic_arb, apid, id);
> + cleanup_irq(bus, apid, id);
> continue;
> }
> generic_handle_irq(irq);
> @@ -645,16 +670,17 @@ static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid)
>
> static void pmic_arb_chained_irq(struct irq_desc *desc)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_desc_get_handler_data(desc);
> + struct spmi_pmic_arb_bus *bus = irq_desc_get_handler_data(desc);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
> struct irq_chip *chip = irq_desc_get_chip(desc);
> - int first = pmic_arb->min_apid;
> - int last = pmic_arb->max_apid;
> + int first = bus->min_apid;
> + int last = bus->max_apid;
> /*
> * acc_offset will be non-zero for the secondary SPMI bus instance on
> * v7 controllers.
> */
> - int acc_offset = pmic_arb->base_apid >> 5;
> + int acc_offset = bus->base_apid >> 5;
> u8 ee = pmic_arb->ee;
> u32 status, enable, handled = 0;
> int i, id, apid;
> @@ -665,7 +691,7 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
> chained_irq_enter(chip, desc);
>
> for (i = first >> 5; i <= last >> 5; ++i) {
> - status = readl_relaxed(ver_ops->owner_acc_status(pmic_arb, ee, i - acc_offset));
> + status = readl_relaxed(ver_ops->owner_acc_status(bus, ee, i - acc_offset));
> if (status)
> acc_valid = true;
>
> @@ -679,9 +705,9 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
> continue;
> }
> enable = readl_relaxed(
> - ver_ops->acc_enable(pmic_arb, apid));
> + ver_ops->acc_enable(bus, apid));
> if (enable & SPMI_PIC_ACC_ENABLE_BIT)
> - if (periph_interrupt(pmic_arb, apid) != 0)
> + if (periph_interrupt(bus, apid) != 0)
> handled++;
> }
> }
> @@ -690,19 +716,19 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
> if (!acc_valid) {
> for (i = first; i <= last; i++) {
> /* skip if APPS is not irq owner */
> - if (pmic_arb->apid_data[i].irq_ee != pmic_arb->ee)
> + if (bus->apid_data[i].irq_ee != pmic_arb->ee)
> continue;
>
> irq_status = readl_relaxed(
> - ver_ops->irq_status(pmic_arb, i));
> + ver_ops->irq_status(bus, i));
> if (irq_status) {
> enable = readl_relaxed(
> - ver_ops->acc_enable(pmic_arb, i));
> + ver_ops->acc_enable(bus, i));
> if (enable & SPMI_PIC_ACC_ENABLE_BIT) {
> - dev_dbg(&pmic_arb->spmic->dev,
> + dev_dbg(&bus->spmic->dev,
> "Dispatching IRQ for apid=%d status=%x\n",
> i, irq_status);
> - if (periph_interrupt(pmic_arb, i) != 0)
> + if (periph_interrupt(bus, i) != 0)
> handled++;
> }
> }
> @@ -717,12 +743,13 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
>
> static void qpnpint_irq_ack(struct irq_data *d)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u8 irq = hwirq_to_irq(d->hwirq);
> u16 apid = hwirq_to_apid(d->hwirq);
> u8 data;
>
> - writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(pmic_arb, apid));
> + writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(bus, apid));
>
> data = BIT(irq);
> qpnpint_spmi_write(d, QPNPINT_REG_LATCHED_CLR, &data, 1);
> @@ -738,14 +765,15 @@ static void qpnpint_irq_mask(struct irq_data *d)
>
> static void qpnpint_irq_unmask(struct irq_data *d)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
> u8 irq = hwirq_to_irq(d->hwirq);
> u16 apid = hwirq_to_apid(d->hwirq);
> u8 buf[2];
>
> writel_relaxed(SPMI_PIC_ACC_ENABLE_BIT,
> - ver_ops->acc_enable(pmic_arb, apid));
> + ver_ops->acc_enable(bus, apid));
>
> qpnpint_spmi_read(d, QPNPINT_REG_EN_SET, &buf[0], 1);
> if (!(buf[0] & BIT(irq))) {
> @@ -802,9 +830,9 @@ static int qpnpint_irq_set_type(struct irq_data *d, unsigned int flow_type)
>
> static int qpnpint_irq_set_wake(struct irq_data *d, unsigned int on)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
>
> - return irq_set_irq_wake(pmic_arb->irq, on);
> + return irq_set_irq_wake(bus->irq, on);
> }
>
> static int qpnpint_get_irqchip_state(struct irq_data *d,
> @@ -826,17 +854,18 @@ static int qpnpint_get_irqchip_state(struct irq_data *d,
> static int qpnpint_irq_domain_activate(struct irq_domain *domain,
> struct irq_data *d, bool reserve)
> {
> - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d);
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u16 periph = hwirq_to_per(d->hwirq);
> u16 apid = hwirq_to_apid(d->hwirq);
> u16 sid = hwirq_to_sid(d->hwirq);
> u16 irq = hwirq_to_irq(d->hwirq);
> u8 buf;
>
> - if (pmic_arb->apid_data[apid].irq_ee != pmic_arb->ee) {
> - dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n",
> + if (bus->apid_data[apid].irq_ee != pmic_arb->ee) {
> + dev_err(&bus->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n",
> sid, periph, irq, pmic_arb->ee,
> - pmic_arb->apid_data[apid].irq_ee);
> + bus->apid_data[apid].irq_ee);
> return -ENODEV;
> }
>
> @@ -863,15 +892,16 @@ static int qpnpint_irq_domain_translate(struct irq_domain *d,
> unsigned long *out_hwirq,
> unsigned int *out_type)
> {
> - struct spmi_pmic_arb *pmic_arb = d->host_data;
> + struct spmi_pmic_arb_bus *bus = d->host_data;
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u32 *intspec = fwspec->param;
> u16 apid, ppid;
> int rc;
>
> - dev_dbg(&pmic_arb->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
> + dev_dbg(&bus->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
> intspec[0], intspec[1], intspec[2]);
>
> - if (irq_domain_get_of_node(d) != pmic_arb->spmic->dev.of_node)
> + if (irq_domain_get_of_node(d) != bus->spmic->dev.of_node)
> return -EINVAL;
> if (fwspec->param_count != 4)
> return -EINVAL;
> @@ -879,37 +909,38 @@ static int qpnpint_irq_domain_translate(struct irq_domain *d,
> return -EINVAL;
>
> ppid = intspec[0] << 8 | intspec[1];
> - rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid);
> + rc = pmic_arb->ver_ops->ppid_to_apid(bus, ppid);
> if (rc < 0) {
> - dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u rc = %d\n",
> - intspec[0], intspec[1], intspec[2], rc);
> + dev_err(&bus->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u rc = %d\n",
> + intspec[0], intspec[1], intspec[2], rc);
> return rc;
> }
>
> apid = rc;
> /* Keep track of {max,min}_apid for bounding search during interrupt */
> - if (apid > pmic_arb->max_apid)
> - pmic_arb->max_apid = apid;
> - if (apid < pmic_arb->min_apid)
> - pmic_arb->min_apid = apid;
> + if (apid > bus->max_apid)
> + bus->max_apid = apid;
> + if (apid < bus->min_apid)
> + bus->min_apid = apid;
>
> *out_hwirq = spec_to_hwirq(intspec[0], intspec[1], intspec[2], apid);
> *out_type = intspec[3] & IRQ_TYPE_SENSE_MASK;
>
> - dev_dbg(&pmic_arb->spmic->dev, "out_hwirq = %lu\n", *out_hwirq);
> + dev_dbg(&bus->spmic->dev, "out_hwirq = %lu\n", *out_hwirq);
>
> return 0;
> }
>
> static struct lock_class_key qpnpint_irq_lock_class, qpnpint_irq_request_class;
>
> -static void qpnpint_irq_domain_map(struct spmi_pmic_arb *pmic_arb,
> +static void qpnpint_irq_domain_map(struct spmi_pmic_arb_bus *bus,
> struct irq_domain *domain, unsigned int virq,
> irq_hw_number_t hwirq, unsigned int type)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> irq_flow_handler_t handler;
>
> - dev_dbg(&pmic_arb->spmic->dev, "virq = %u, hwirq = %lu, type = %u\n",
> + dev_dbg(&bus->spmic->dev, "virq = %u, hwirq = %lu, type = %u\n",
> virq, hwirq, type);
>
> if (type & IRQ_TYPE_EDGE_BOTH)
> @@ -928,7 +959,7 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
> unsigned int virq, unsigned int nr_irqs,
> void *data)
> {
> - struct spmi_pmic_arb *pmic_arb = domain->host_data;
> + struct spmi_pmic_arb_bus *bus = domain->host_data;
> struct irq_fwspec *fwspec = data;
> irq_hw_number_t hwirq;
> unsigned int type;
> @@ -939,20 +970,22 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
> return ret;
>
> for (i = 0; i < nr_irqs; i++)
> - qpnpint_irq_domain_map(pmic_arb, domain, virq + i, hwirq + i,
> + qpnpint_irq_domain_map(bus, domain, virq + i, hwirq + i,
> type);
>
> return 0;
> }
>
> -static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
> +static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb_bus *bus)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> +
> /*
> * Initialize max_apid/min_apid to the opposite bounds, during
> * the irq domain translation, we are sure to update these
> */
> - pmic_arb->max_apid = 0;
> - pmic_arb->min_apid = pmic_arb->max_periphs - 1;
> + bus->max_apid = 0;
> + bus->min_apid = pmic_arb->max_periphs - 1;
>
> return 0;
> }
> @@ -970,43 +1003,44 @@ static int pmic_arb_get_core_resources_v1(struct platform_device *pdev,
> return 0;
> }
>
> -static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
> +static int pmic_arb_init_apid_v1(struct spmi_pmic_arb_bus *bus, int index)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u32 *mapping_table;
>
> if (index) {
> - dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
> index);
> return -EINVAL;
> }
>
> - mapping_table = devm_kcalloc(&pmic_arb->spmic->dev, pmic_arb->max_periphs,
> + mapping_table = devm_kcalloc(&bus->spmic->dev, pmic_arb->max_periphs,
> sizeof(*mapping_table), GFP_KERNEL);
> if (!mapping_table)
> return -ENOMEM;
>
> - pmic_arb->mapping_table = mapping_table;
> + bus->mapping_table = mapping_table;
>
> - return pmic_arb_init_apid_min_max(pmic_arb);
> + return pmic_arb_init_apid_min_max(bus);
> }
>
> -static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> +static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb_bus *bus, u16 ppid)
> {
> - u32 *mapping_table = pmic_arb->mapping_table;
> + u32 *mapping_table = bus->mapping_table;
> int index = 0, i;
> u16 apid_valid;
> u16 apid;
> u32 data;
>
> - apid_valid = pmic_arb->ppid_to_apid[ppid];
> + apid_valid = bus->ppid_to_apid[ppid];
> if (apid_valid & PMIC_ARB_APID_VALID) {
> apid = apid_valid & ~PMIC_ARB_APID_VALID;
> return apid;
> }
>
> for (i = 0; i < SPMI_MAPPING_TABLE_TREE_DEPTH; ++i) {
> - if (!test_and_set_bit(index, pmic_arb->mapping_table_valid))
> - mapping_table[index] = readl_relaxed(pmic_arb->cnfg +
> + if (!test_and_set_bit(index, bus->mapping_table_valid))
> + mapping_table[index] = readl_relaxed(bus->cnfg +
> SPMI_MAPPING_TABLE_REG(index));
>
> data = mapping_table[index];
> @@ -1016,9 +1050,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> index = SPMI_MAPPING_BIT_IS_1_RESULT(data);
> } else {
> apid = SPMI_MAPPING_BIT_IS_1_RESULT(data);
> - pmic_arb->ppid_to_apid[ppid]
> + bus->ppid_to_apid[ppid]
> = apid | PMIC_ARB_APID_VALID;
> - pmic_arb->apid_data[apid].ppid = ppid;
> + bus->apid_data[apid].ppid = ppid;
> return apid;
> }
> } else {
> @@ -1026,9 +1060,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> index = SPMI_MAPPING_BIT_IS_0_RESULT(data);
> } else {
> apid = SPMI_MAPPING_BIT_IS_0_RESULT(data);
> - pmic_arb->ppid_to_apid[ppid]
> + bus->ppid_to_apid[ppid]
> = apid | PMIC_ARB_APID_VALID;
> - pmic_arb->apid_data[apid].ppid = ppid;
> + bus->apid_data[apid].ppid = ppid;
> return apid;
> }
> }
> @@ -1038,24 +1072,26 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> }
>
> /* v1 offset per ee */
> -static int pmic_arb_offset_v1(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> - enum pmic_arb_channel ch_type)
> +static int pmic_arb_offset_v1(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
> + enum pmic_arb_channel ch_type)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return 0x800 + 0x80 * pmic_arb->channel;
> }
>
> -static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> +static u16 pmic_arb_find_apid(struct spmi_pmic_arb_bus *bus, u16 ppid)
> {
> - struct apid_data *apidd = &pmic_arb->apid_data[pmic_arb->last_apid];
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> + struct apid_data *apidd = &bus->apid_data[bus->last_apid];
> u32 regval, offset;
> u16 id, apid;
>
> - for (apid = pmic_arb->last_apid; ; apid++, apidd++) {
> + for (apid = bus->last_apid; ; apid++, apidd++) {
> offset = pmic_arb->ver_ops->apid_map_offset(apid);
> if (offset >= pmic_arb->core_size)
> break;
>
> - regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb,
> + regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(bus,
> apid));
> apidd->irq_ee = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
> apidd->write_ee = apidd->irq_ee;
> @@ -1065,14 +1101,14 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> continue;
>
> id = (regval >> 8) & PMIC_ARB_PPID_MASK;
> - pmic_arb->ppid_to_apid[id] = apid | PMIC_ARB_APID_VALID;
> + bus->ppid_to_apid[id] = apid | PMIC_ARB_APID_VALID;
> apidd->ppid = id;
> if (id == ppid) {
> apid |= PMIC_ARB_APID_VALID;
> break;
> }
> }
> - pmic_arb->last_apid = apid & ~PMIC_ARB_APID_VALID;
> + bus->last_apid = apid & ~PMIC_ARB_APID_VALID;
>
> return apid;
> }
> @@ -1104,21 +1140,22 @@ static int pmic_arb_get_core_resources_v2(struct platform_device *pdev,
> return pmic_arb_get_obsrvr_chnls_v2(pdev);
> }
>
> -static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> +static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb_bus *bus, u16 ppid)
> {
> u16 apid_valid;
>
> - apid_valid = pmic_arb->ppid_to_apid[ppid];
> + apid_valid = bus->ppid_to_apid[ppid];
> if (!(apid_valid & PMIC_ARB_APID_VALID))
> - apid_valid = pmic_arb_find_apid(pmic_arb, ppid);
> + apid_valid = pmic_arb_find_apid(bus, ppid);
> if (!(apid_valid & PMIC_ARB_APID_VALID))
> return -ENODEV;
>
> return apid_valid & ~PMIC_ARB_APID_VALID;
> }
>
> -static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
> +static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb_bus *bus)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> struct apid_data *apidd;
> struct apid_data *prev_apidd;
> u16 i, apid, ppid, apid_max;
> @@ -1140,9 +1177,9 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
> * where N = number of APIDs supported by the primary bus and
> * M = number of APIDs supported by the secondary bus
> */
> - apidd = &pmic_arb->apid_data[pmic_arb->base_apid];
> - apid_max = pmic_arb->base_apid + pmic_arb->apid_count;
> - for (i = pmic_arb->base_apid; i < apid_max; i++, apidd++) {
> + apidd = &bus->apid_data[bus->base_apid];
> + apid_max = bus->base_apid + bus->apid_count;
> + for (i = bus->base_apid; i < apid_max; i++, apidd++) {
> offset = pmic_arb->ver_ops->apid_map_offset(i);
> if (offset >= pmic_arb->core_size)
> break;
> @@ -1153,19 +1190,18 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
> ppid = (regval >> 8) & PMIC_ARB_PPID_MASK;
> is_irq_ee = PMIC_ARB_CHAN_IS_IRQ_OWNER(regval);
>
> - regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb,
> - i));
> + regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(bus, i));
> apidd->write_ee = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
>
> apidd->irq_ee = is_irq_ee ? apidd->write_ee : INVALID_EE;
>
> - valid = pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID;
> - apid = pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
> - prev_apidd = &pmic_arb->apid_data[apid];
> + valid = bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID;
> + apid = bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
> + prev_apidd = &bus->apid_data[apid];
>
> if (!valid || apidd->write_ee == pmic_arb->ee) {
> /* First PPID mapping or one for this EE */
> - pmic_arb->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
> + bus->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
> } else if (valid && is_irq_ee &&
> prev_apidd->write_ee == pmic_arb->ee) {
> /*
> @@ -1176,42 +1212,43 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
> }
>
> apidd->ppid = ppid;
> - pmic_arb->last_apid = i;
> + bus->last_apid = i;
> }
>
> /* Dump the mapping table for debug purposes. */
> - dev_dbg(&pmic_arb->spmic->dev, "PPID APID Write-EE IRQ-EE\n");
> + dev_dbg(&bus->spmic->dev, "PPID APID Write-EE IRQ-EE\n");
> for (ppid = 0; ppid < PMIC_ARB_MAX_PPID; ppid++) {
> - apid = pmic_arb->ppid_to_apid[ppid];
> + apid = bus->ppid_to_apid[ppid];
> if (apid & PMIC_ARB_APID_VALID) {
> apid &= ~PMIC_ARB_APID_VALID;
> - apidd = &pmic_arb->apid_data[apid];
> - dev_dbg(&pmic_arb->spmic->dev, "%#03X %3u %2u %2u\n",
> - ppid, apid, apidd->write_ee, apidd->irq_ee);
> + apidd = &bus->apid_data[apid];
> + dev_dbg(&bus->spmic->dev, "%#03X %3u %2u %2u\n",
> + ppid, apid, apidd->write_ee, apidd->irq_ee);
> }
> }
>
> return 0;
> }
>
> -static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb *pmic_arb, u16 ppid)
> +static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb_bus *bus, u16 ppid)
> {
> - if (!(pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID))
> + if (!(bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID))
> return -ENODEV;
>
> - return pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
> + return bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
> }
>
> /* v2 offset per ppid and per ee */
> -static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> - enum pmic_arb_channel ch_type)
> +static int pmic_arb_offset_v2(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
> + enum pmic_arb_channel ch_type)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u16 apid;
> u16 ppid;
> int rc;
>
> ppid = sid << 8 | ((addr >> 8) & 0xFF);
> - rc = pmic_arb_ppid_to_apid_v2(pmic_arb, ppid);
> + rc = pmic_arb_ppid_to_apid_v2(bus, ppid);
> if (rc < 0)
> return rc;
>
> @@ -1219,33 +1256,34 @@ static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> return 0x1000 * pmic_arb->ee + 0x8000 * apid;
> }
>
> -static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
> +static int pmic_arb_init_apid_v5(struct spmi_pmic_arb_bus *bus, int index)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> int ret;
>
> if (index) {
> - dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
> index);
> return -EINVAL;
> }
>
> - pmic_arb->base_apid = 0;
> - pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + bus->base_apid = 0;
> + bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> PMIC_ARB_FEATURES_PERIPH_MASK;
>
> - if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
> - dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
> - pmic_arb->base_apid + pmic_arb->apid_count);
> + if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) {
> + dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n",
> + bus->base_apid + bus->apid_count);
> return -EINVAL;
> }
>
> - ret = pmic_arb_init_apid_min_max(pmic_arb);
> + ret = pmic_arb_init_apid_min_max(bus);
> if (ret)
> return ret;
>
> - ret = pmic_arb_read_apid_map_v5(pmic_arb);
> + ret = pmic_arb_read_apid_map_v5(bus);
> if (ret) {
> - dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> + dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> ret);
> return ret;
> }
> @@ -1257,15 +1295,16 @@ static int pmic_arb_init_apid_v5(struct spmi_pmic_arb *pmic_arb, int index)
> * v5 offset per ee and per apid for observer channels and per apid for
> * read/write channels.
> */
> -static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> - enum pmic_arb_channel ch_type)
> +static int pmic_arb_offset_v5(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
> + enum pmic_arb_channel ch_type)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u16 apid;
> int rc;
> u32 offset = 0;
> u16 ppid = (sid << 8) | (addr >> 8);
>
> - rc = pmic_arb_ppid_to_apid_v5(pmic_arb, ppid);
> + rc = pmic_arb_ppid_to_apid_v5(bus, ppid);
> if (rc < 0)
> return rc;
>
> @@ -1275,8 +1314,8 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> offset = 0x10000 * pmic_arb->ee + 0x80 * apid;
> break;
> case PMIC_ARB_CHANNEL_RW:
> - if (pmic_arb->apid_data[apid].write_ee != pmic_arb->ee) {
> - dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
> + if (bus->apid_data[apid].write_ee != pmic_arb->ee) {
> + dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
> sid, addr);
> return -EPERM;
> }
> @@ -1303,38 +1342,39 @@ static int pmic_arb_get_core_resources_v7(struct platform_device *pdev,
> * Only v7 supports 2 buses. Each bus will get a different apid count, read
> * from different registers.
> */
> -static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
> +static int pmic_arb_init_apid_v7(struct spmi_pmic_arb_bus *bus, int index)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> int ret;
>
> if (index == 0) {
> - pmic_arb->base_apid = 0;
> - pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + bus->base_apid = 0;
> + bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> PMIC_ARB_FEATURES_PERIPH_MASK;
> } else if (index == 1) {
> - pmic_arb->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> + bus->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) &
> PMIC_ARB_FEATURES_PERIPH_MASK;
> - pmic_arb->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
> + bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) &
> PMIC_ARB_FEATURES_PERIPH_MASK;
> } else {
> - dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> - index);
> + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n",
> + bus->id);
> return -EINVAL;
> }
>
> - if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) {
> - dev_err(&pmic_arb->spmic->dev, "Unsupported APID count %d detected\n",
> - pmic_arb->base_apid + pmic_arb->apid_count);
> + if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) {
> + dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n",
> + bus->base_apid + bus->apid_count);
> return -EINVAL;
> }
>
> - ret = pmic_arb_init_apid_min_max(pmic_arb);
> + ret = pmic_arb_init_apid_min_max(bus);
> if (ret)
> return ret;
>
> - ret = pmic_arb_read_apid_map_v5(pmic_arb);
> + ret = pmic_arb_read_apid_map_v5(bus);
> if (ret) {
> - dev_err(&pmic_arb->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> + dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n",
> ret);
> return ret;
> }
> @@ -1346,15 +1386,16 @@ static int pmic_arb_init_apid_v7(struct spmi_pmic_arb *pmic_arb, int index)
> * v7 offset per ee and per apid for observer channels and per apid for
> * read/write channels.
> */
> -static int pmic_arb_offset_v7(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> - enum pmic_arb_channel ch_type)
> +static int pmic_arb_offset_v7(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr,
> + enum pmic_arb_channel ch_type)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> u16 apid;
> int rc;
> u32 offset = 0;
> u16 ppid = (sid << 8) | (addr >> 8);
>
> - rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid);
> + rc = pmic_arb->ver_ops->ppid_to_apid(bus, ppid);
> if (rc < 0)
> return rc;
>
> @@ -1364,8 +1405,8 @@ static int pmic_arb_offset_v7(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> offset = 0x8000 * pmic_arb->ee + 0x20 * apid;
> break;
> case PMIC_ARB_CHANNEL_RW:
> - if (pmic_arb->apid_data[apid].write_ee != pmic_arb->ee) {
> - dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
> + if (bus->apid_data[apid].write_ee != pmic_arb->ee) {
> + dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n",
> sid, addr);
> return -EPERM;
> }
> @@ -1387,104 +1428,110 @@ static u32 pmic_arb_fmt_cmd_v2(u8 opc, u8 sid, u16 addr, u8 bc)
> }
>
> static void __iomem *
> -pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
> +pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
> {
> - return pmic_arb->intr + 0x20 * m + 0x4 * n;
> + return bus->intr + 0x20 * m + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
> +pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
> {
> - return pmic_arb->intr + 0x100000 + 0x1000 * m + 0x4 * n;
> + return bus->intr + 0x100000 + 0x1000 * m + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
> +pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
> {
> - return pmic_arb->intr + 0x200000 + 0x1000 * m + 0x4 * n;
> + return bus->intr + 0x200000 + 0x1000 * m + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
> +pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
> {
> - return pmic_arb->intr + 0x10000 * m + 0x4 * n;
> + return bus->intr + 0x10000 * m + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n)
> +pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb_bus *bus, u8 m, u16 n)
> {
> - return pmic_arb->intr + 0x1000 * m + 0x4 * n;
> + return bus->intr + 0x1000 * m + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_acc_enable_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_acc_enable_v1(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0x200 + 0x4 * n;
> + return bus->intr + 0x200 + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_acc_enable_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_acc_enable_v2(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0x1000 * n;
> + return bus->intr + 0x1000 * n;
> }
>
> static void __iomem *
> -pmic_arb_acc_enable_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_acc_enable_v5(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x100 + 0x10000 * n;
> }
>
> static void __iomem *
> -pmic_arb_acc_enable_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_acc_enable_v7(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x100 + 0x1000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_status_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_status_v1(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0x600 + 0x4 * n;
> + return bus->intr + 0x600 + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_status_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_status_v2(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0x4 + 0x1000 * n;
> + return bus->intr + 0x4 + 0x1000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_status_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_status_v5(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x104 + 0x10000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_status_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_status_v7(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x104 + 0x1000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_clear_v1(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_clear_v1(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0xA00 + 0x4 * n;
> + return bus->intr + 0xA00 + 0x4 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_clear_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_clear_v2(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->intr + 0x8 + 0x1000 * n;
> + return bus->intr + 0x8 + 0x1000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_clear_v5(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_clear_v5(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x108 + 0x10000 * n;
> }
>
> static void __iomem *
> -pmic_arb_irq_clear_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_irq_clear_v7(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb;
> return pmic_arb->wr_base + 0x108 + 0x1000 * n;
> }
>
> @@ -1504,9 +1551,9 @@ static u32 pmic_arb_apid_map_offset_v7(u16 n)
> }
>
> static void __iomem *
> -pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_apid_owner_v2(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->cnfg + 0x700 + 0x4 * n;
> + return bus->cnfg + 0x700 + 0x4 * n;
> }
>
> /*
> @@ -1515,9 +1562,9 @@ pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_arb, u16 n)
> * 0.
> */
> static void __iomem *
> -pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n)
> +pmic_arb_apid_owner_v7(struct spmi_pmic_arb_bus *bus, u16 n)
> {
> - return pmic_arb->cnfg + 0x4 * (n - pmic_arb->base_apid);
> + return bus->cnfg + 0x4 * (n - bus->base_apid);
> }
>
> static const struct pmic_arb_ver_ops pmic_arb_v1 = {
> @@ -1607,29 +1654,159 @@ static const struct irq_domain_ops pmic_arb_irq_domain_ops = {
> .translate = qpnpint_irq_domain_translate,
> };
>
> +static int spmi_pmic_arb_bus_init(struct platform_device *pdev,
> + struct device_node *node,
> + struct spmi_pmic_arb *pmic_arb)
> +{
> + int bus_index = pmic_arb->buses_available;
> + struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[bus_index];
> + struct device *dev = &pdev->dev;
> + struct spmi_controller *ctrl;
> + void __iomem *intr;
> + void __iomem *cnfg;
> + int index, ret;
> + u32 irq;
> +
> + ctrl = devm_spmi_controller_alloc(dev, sizeof(*ctrl));
> + if (IS_ERR(ctrl))
> + return PTR_ERR(ctrl);
> +
> + ctrl->cmd = pmic_arb_cmd;
> + ctrl->read_cmd = pmic_arb_read_cmd;
> + ctrl->write_cmd = pmic_arb_write_cmd;
> +
> + bus = spmi_controller_get_drvdata(ctrl);
> + bus->spmic = ctrl;
> +
> + bus->ppid_to_apid = devm_kcalloc(dev, PMIC_ARB_MAX_PPID,
> + sizeof(*bus->ppid_to_apid),
> + GFP_KERNEL);
> + if (!bus->ppid_to_apid)
> + return -ENOMEM;
> +
> + bus->apid_data = devm_kcalloc(dev, pmic_arb->max_periphs,
> + sizeof(*bus->apid_data),
> + GFP_KERNEL);
> + if (!bus->apid_data)
> + return -ENOMEM;
> +
> + index = of_property_match_string(node, "reg-names", "cnfg");
> + if (index < 0) {
> + dev_err(dev, "cnfg reg region missing");
> + return -EINVAL;
> + }
> +
> + cnfg = devm_of_iomap(dev, node, index, NULL);
> + if (IS_ERR(cnfg))
> + return PTR_ERR(cnfg);
> +
> + index = of_property_match_string(node, "reg-names", "intr");
> + if (index < 0) {
> + dev_err(dev, "intr reg region missing");
> + return -EINVAL;
> + }
> +
> + intr = devm_of_iomap(dev, node, index, NULL);
> + if (IS_ERR(intr))
> + return PTR_ERR(intr);
> +
> + irq = of_irq_get_byname(node, "periph_irq");
> + if (irq < 0)
> + return irq;
> +
> + bus->pmic_arb = pmic_arb;
> + bus->intr = intr;
> + bus->cnfg = cnfg;
> + bus->irq = irq;
> + bus->id = bus_index;
> +
> + ret = pmic_arb->ver_ops->init_apid(bus, bus_index);
> + if (ret)
> + return ret;
> +
> + dev_dbg(&pdev->dev, "adding irq domain for bus %d\n", bus_index);
> +
> + bus->domain = irq_domain_add_tree(dev->of_node,
> + &pmic_arb_irq_domain_ops, bus);
> + if (!bus->domain) {
> + dev_err(&pdev->dev, "unable to create irq_domain\n");
> + return -ENOMEM;
> + }
> +
> + irq_set_chained_handler_and_data(bus->irq,
> + pmic_arb_chained_irq, bus);
> +
> + bus->spmic->dev.of_node = node;
> + dev_set_name(&bus->spmic->dev, "spmi-%d", bus_index);
> +
> + ret = devm_spmi_controller_add(dev, bus->spmic);
> + if (ret)
> + return ret;
> +
> + pmic_arb->buses_available++;
> +
> + return 0;
> +}
> +
> +static int spmi_pmic_arb_register_buses(struct spmi_pmic_arb *pmic_arb,
> + struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct device_node *node = dev->of_node;
> + struct device_node *child;
> + int ret;
> +
> + /* legacy mode doesn't provide child node for the bus */
> + if (of_device_is_compatible(node, "qcom,spmi-pmic-arb"))
> + return spmi_pmic_arb_bus_init(pdev, node, pmic_arb);
> +
> + for_each_available_child_of_node(node, child) {
> + if (of_node_name_eq(child, "spmi")) {
> + ret = spmi_pmic_arb_bus_init(pdev, child, pmic_arb);
> + if (ret)
> + return ret;
> + }
> + }
> +
> + return ret;
> +}
> +
> +static void spmi_pmic_arb_deregister_buses(struct spmi_pmic_arb *pmic_arb)
> +{
> + int i;
> +
> + for (i = 0; i < PMIC_ARB_MAX_BUSES; i++) {
> + struct spmi_pmic_arb_bus *bus = &pmic_arb->buses[i];
> +
> + irq_set_chained_handler_and_data(bus->irq,
> + NULL, NULL);
> + irq_domain_remove(bus->domain);
> + }
> +}
> +
> static int spmi_pmic_arb_probe(struct platform_device *pdev)
> {
> struct spmi_pmic_arb *pmic_arb;
> - struct spmi_controller *ctrl;
> + struct device *dev = &pdev->dev;
> struct resource *res;
> void __iomem *core;
> u32 channel, ee, hw_ver;
> int err;
>
> - ctrl = devm_spmi_controller_alloc(&pdev->dev, sizeof(*pmic_arb));
> - if (IS_ERR(ctrl))
> - return PTR_ERR(ctrl);
> -
> - pmic_arb = spmi_controller_get_drvdata(ctrl);
> - pmic_arb->spmic = ctrl;
> + pmic_arb = devm_kzalloc(dev, sizeof(*pmic_arb), GFP_KERNEL);
> + if (!pmic_arb)
> + return -ENOMEM;
>
> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
> - core = devm_ioremap(&ctrl->dev, res->start, resource_size(res));
> + core = devm_ioremap(dev, res->start, resource_size(res));
> if (IS_ERR(core))
> return PTR_ERR(core);
>
> pmic_arb->core_size = resource_size(res);
>
> + platform_set_drvdata(pdev, pmic_arb);
> + raw_spin_lock_init(&pmic_arb->lock);
> +
> hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
>
> if (hw_ver < PMIC_ARB_VERSION_V2_MIN)
> @@ -1643,30 +1820,12 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
> else
> pmic_arb->ver_ops = &pmic_arb_v7;
>
> - dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
> - pmic_arb->ver_ops->ver_str, hw_ver);
> -
> err = pmic_arb->ver_ops->get_core_resources(pdev, core);
> if (err)
> return err;
>
> - err = pmic_arb->ver_ops->init_apid(pmic_arb, 0);
> - if (err)
> - return err;
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr");
> - pmic_arb->intr = devm_ioremap_resource(&ctrl->dev, res);
> - if (IS_ERR(pmic_arb->intr))
> - return PTR_ERR(pmic_arb->intr);
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cnfg");
> - pmic_arb->cnfg = devm_ioremap_resource(&ctrl->dev, res);
> - if (IS_ERR(pmic_arb->cnfg))
> - return PTR_ERR(pmic_arb->cnfg);
> -
> - pmic_arb->irq = platform_get_irq_byname(pdev, "periph_irq");
> - if (pmic_arb->irq < 0)
> - return pmic_arb->irq;
> + dev_info(dev, "PMIC arbiter version %s (0x%x)\n",
> + pmic_arb->ver_ops->ver_str, hw_ver);
>
> err = of_property_read_u32(pdev->dev.of_node, "qcom,channel", &channel);
> if (err) {
> @@ -1695,46 +1854,19 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
>
> pmic_arb->ee = ee;
>
> - platform_set_drvdata(pdev, ctrl);
> - raw_spin_lock_init(&pmic_arb->lock);
> -
> - ctrl->cmd = pmic_arb_cmd;
> - ctrl->read_cmd = pmic_arb_read_cmd;
> - ctrl->write_cmd = pmic_arb_write_cmd;
> -
> - dev_dbg(&pdev->dev, "adding irq domain\n");
> - pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node,
> - &pmic_arb_irq_domain_ops, pmic_arb);
> - if (!pmic_arb->domain) {
> - dev_err(&pdev->dev, "unable to create irq_domain\n");
> - return -ENOMEM;
> - }
> -
> - irq_set_chained_handler_and_data(pmic_arb->irq, pmic_arb_chained_irq,
> - pmic_arb);
> - err = spmi_controller_add(ctrl);
> - if (err)
> - goto err_domain_remove;
> -
> - return 0;
> -
> -err_domain_remove:
> - irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL);
> - irq_domain_remove(pmic_arb->domain);
> - return err;
> + return spmi_pmic_arb_register_buses(pmic_arb, pdev);
> }
>
> static void spmi_pmic_arb_remove(struct platform_device *pdev)
> {
> - struct spmi_controller *ctrl = platform_get_drvdata(pdev);
> - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
> - spmi_controller_remove(ctrl);
> - irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL);
> - irq_domain_remove(pmic_arb->domain);
> + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev);
> +
> + spmi_pmic_arb_deregister_buses(pmic_arb);
> }
>
> static const struct of_device_id spmi_pmic_arb_match_table[] = {
> { .compatible = "qcom,spmi-pmic-arb", },
> + { .compatible = "qcom,x1e80100-spmi-pmic-arb", },
> {},
> };
> MODULE_DEVICE_TABLE(of, spmi_pmic_arb_match_table);
>
The change is quite long and it's hard to disinguish the introduction of
spmi_pmic_arb_bus and the addition of 2 busses for v7.
Could you split in 2 by:
1) adding spmi_pmic_arb_bus but only registering a single bus
2) add the plumbing for 2 busses for v7
it would help review and bisecting.
Thanks,
Neil
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
2024-03-26 16:28 ` Abel Vesa
@ 2024-03-28 9:07 ` Neil Armstrong
-1 siblings, 0 replies; 34+ messages in thread
From: Neil Armstrong @ 2024-03-28 9:07 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
Hi Abel,
On 26/03/2024 17:28, Abel Vesa wrote:
> This RFC prepares for and adds support for 2 buses, which is supported
> in HW starting with version 7. Until now, none of the currently
> supported platforms in upstream have used the second bus. The X1E80100
> platform, on the other hand, needs the second bus for the USB2.0 to work
> as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
> all found on the second bus.
@Dmitry, @Konrad, @Bjorn, could you apply those patches and test an devices
you have to make sure there's no regression ?
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> Changes in v6:
> - Changed the compatible to platform specific (X1E80100) along with the
> schema. Fixed the spmi buses unit addresses and added the empty ranges
> property. Added missing properties to the spmi buses and the
> "unevaluatedProperties: false".
> - Deprecated the "qcom,bus-id" in the legacy schema.
> - Changed the driver to check for legacy compatible first
> - Link to v5: https://lore.kernel.org/r/20240221-spmi-multi-master-support-v5-0-3255ca413a0b@linaro.org
>
> Changes in v5:
> - Dropped the RFC as there aren't any concerns about the approach anymore
> - Dropped the unused dev and res variables from pmic_arb_get_obsrvr_chnls_v2
> - Link to v4: https://lore.kernel.org/r/20240220-spmi-multi-master-support-v4-0-dc813c878ba8@linaro.org
>
> Changes in v4:
> - Fixed comment above pmic_arb_init_apid_v7 by dropping the extra "bus" word
> - Swicthed to devm_platform_ioremap_resource_byname for obsrvr and chnls.
> The core remains with platform_get_resource_byname as we need the core size.
> - Dropped comment from probe related to the need of platform_get_resource_byname
> as it not true anymore.
> - Dropped the qcom,bus-id optional property.
> - Link to v3: https://lore.kernel.org/r/20240214-spmi-multi-master-support-v3-0-0bae0ef04faf@linaro.org
>
> Changes in v3:
> - Split the change into 3 separate patches. First 2 patches are moving
> apid init and core resources into version specific ops. Third one is
> adding the support for 2 buses and dedicated compatible.
> - Added separate bindings patch
> - Link to v2: https://lore.kernel.org/r/20240213-spmi-multi-master-support-v2-1-b3b102326906@linaro.org
>
> Changes in v2:
> - Reworked it so that it registers a spmi controller for each bus
> rather than relying on the generic framework to pass on the bus
> (master) id.
> - Link to v1: https://lore.kernel.org/r/20240207-spmi-multi-master-support-v1-0-ce57f301c7fd@linaro.org
>
> ---
> Abel Vesa (5):
> dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
> dt-bindings: spmi: Deprecate qcom,bus-id
Forgot to add, but please fix this in a v7:
> spmi: pmic-arb: Make the APID init a version operation
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'core' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'core_size' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'mapping_table_valid' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:243: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_read_data'
drivers/spmi/spmi-pmic-arb.c:257: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_write_data'
> spmi: pmic-arb: Make core resources acquiring a version operation
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'core' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'core_size' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'mapping_table_valid' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:222: warning: Function parameter or struct member 'get_core_resources' not described in 'pmic_arb_ver_ops'
drivers/spmi/spmi-pmic-arb.c:244: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_read_data'
drivers/spmi/spmi-pmic-arb.c:258: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_write_data'
> spmi: pmic-arb: Add multi bus support
>
> .../bindings/spmi/qcom,spmi-pmic-arb.yaml | 1 +
> .../bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml | 136 +++
> drivers/spmi/spmi-pmic-arb.c | 948 +++++++++++++--------
> 3 files changed, 715 insertions(+), 370 deletions(-)
> ---
> base-commit: 4893c639cc3659cefaa675bf1e59f4e7571afb5c
> change-id: 20240207-spmi-multi-master-support-832a704b779b
>
> Best regards,
Thanks,
Neil
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses
@ 2024-03-28 9:07 ` Neil Armstrong
0 siblings, 0 replies; 34+ messages in thread
From: Neil Armstrong @ 2024-03-28 9:07 UTC (permalink / raw)
To: Abel Vesa, Stephen Boyd, Matthias Brugger, Bjorn Andersson,
Konrad Dybcio, Dmitry Baryshkov, AngeloGioacchino Del Regno,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Srini Kandagatla, Johan Hovold, linux-kernel, linux-arm-kernel,
linux-arm-msm, linux-mediatek, devicetree
Hi Abel,
On 26/03/2024 17:28, Abel Vesa wrote:
> This RFC prepares for and adds support for 2 buses, which is supported
> in HW starting with version 7. Until now, none of the currently
> supported platforms in upstream have used the second bus. The X1E80100
> platform, on the other hand, needs the second bus for the USB2.0 to work
> as there are 3 SMB2360 PMICs which provide eUSB2 repeaters and they are
> all found on the second bus.
@Dmitry, @Konrad, @Bjorn, could you apply those patches and test an devices
you have to make sure there's no regression ?
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> Changes in v6:
> - Changed the compatible to platform specific (X1E80100) along with the
> schema. Fixed the spmi buses unit addresses and added the empty ranges
> property. Added missing properties to the spmi buses and the
> "unevaluatedProperties: false".
> - Deprecated the "qcom,bus-id" in the legacy schema.
> - Changed the driver to check for legacy compatible first
> - Link to v5: https://lore.kernel.org/r/20240221-spmi-multi-master-support-v5-0-3255ca413a0b@linaro.org
>
> Changes in v5:
> - Dropped the RFC as there aren't any concerns about the approach anymore
> - Dropped the unused dev and res variables from pmic_arb_get_obsrvr_chnls_v2
> - Link to v4: https://lore.kernel.org/r/20240220-spmi-multi-master-support-v4-0-dc813c878ba8@linaro.org
>
> Changes in v4:
> - Fixed comment above pmic_arb_init_apid_v7 by dropping the extra "bus" word
> - Swicthed to devm_platform_ioremap_resource_byname for obsrvr and chnls.
> The core remains with platform_get_resource_byname as we need the core size.
> - Dropped comment from probe related to the need of platform_get_resource_byname
> as it not true anymore.
> - Dropped the qcom,bus-id optional property.
> - Link to v3: https://lore.kernel.org/r/20240214-spmi-multi-master-support-v3-0-0bae0ef04faf@linaro.org
>
> Changes in v3:
> - Split the change into 3 separate patches. First 2 patches are moving
> apid init and core resources into version specific ops. Third one is
> adding the support for 2 buses and dedicated compatible.
> - Added separate bindings patch
> - Link to v2: https://lore.kernel.org/r/20240213-spmi-multi-master-support-v2-1-b3b102326906@linaro.org
>
> Changes in v2:
> - Reworked it so that it registers a spmi controller for each bus
> rather than relying on the generic framework to pass on the bus
> (master) id.
> - Link to v1: https://lore.kernel.org/r/20240207-spmi-multi-master-support-v1-0-ce57f301c7fd@linaro.org
>
> ---
> Abel Vesa (5):
> dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
> dt-bindings: spmi: Deprecate qcom,bus-id
Forgot to add, but please fix this in a v7:
> spmi: pmic-arb: Make the APID init a version operation
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'core' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'core_size' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'mapping_table_valid' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:243: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_read_data'
drivers/spmi/spmi-pmic-arb.c:257: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_write_data'
> spmi: pmic-arb: Make core resources acquiring a version operation
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'core' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'core_size' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:180: warning: Function parameter or struct member 'mapping_table_valid' not described in 'spmi_pmic_arb'
drivers/spmi/spmi-pmic-arb.c:222: warning: Function parameter or struct member 'get_core_resources' not described in 'pmic_arb_ver_ops'
drivers/spmi/spmi-pmic-arb.c:244: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_read_data'
drivers/spmi/spmi-pmic-arb.c:258: warning: Function parameter or struct member 'pmic_arb' not described in 'pmic_arb_write_data'
> spmi: pmic-arb: Add multi bus support
>
> .../bindings/spmi/qcom,spmi-pmic-arb.yaml | 1 +
> .../bindings/spmi/qcom,x1e80100-spmi-pmic-arb.yaml | 136 +++
> drivers/spmi/spmi-pmic-arb.c | 948 +++++++++++++--------
> 3 files changed, 715 insertions(+), 370 deletions(-)
> ---
> base-commit: 4893c639cc3659cefaa675bf1e59f4e7571afb5c
> change-id: 20240207-spmi-multi-master-support-832a704b779b
>
> Best regards,
Thanks,
Neil
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 3/5] spmi: pmic-arb: Make the APID init a version operation
2024-03-28 8:51 ` Neil Armstrong
@ 2024-03-29 16:32 ` Abel Vesa
-1 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-29 16:32 UTC (permalink / raw)
To: Neil Armstrong
Cc: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, AngeloGioacchino Del Regno, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Srini Kandagatla,
Johan Hovold, linux-kernel, linux-arm-kernel, linux-arm-msm,
linux-mediatek, devicetree
On 24-03-28 09:51:49, Neil Armstrong wrote:
> On 26/03/2024 17:28, Abel Vesa wrote:
> > Rather than using conditionals in probe function, add the APID init
> > as a version specific operation. Due to v7, which supports multiple
> > buses, pass on the bus index to be used for sorting out the apid base
> > and count.
> >
> > Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> > ---
> > drivers/spmi/spmi-pmic-arb.c | 199 +++++++++++++++++++++++++++----------------
> > 1 file changed, 124 insertions(+), 75 deletions(-)
> >
> > diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
> > index 9ed1180fe31f..38fed8a585fe 100644
> > --- a/drivers/spmi/spmi-pmic-arb.c
> > +++ b/drivers/spmi/spmi-pmic-arb.c
> > @@ -183,6 +183,7 @@ struct spmi_pmic_arb {
> > * struct pmic_arb_ver_ops - version dependent functionality.
> > *
> > * @ver_str: version string.
> > + * @init_apid: finds the apid base and count
> > * @ppid_to_apid: finds the apid for a given ppid.
> > * @non_data_cmd: on v1 issues an spmi non-data command.
> > * on v2 no HW support, returns -EOPNOTSUPP.
> > @@ -202,6 +203,7 @@ struct spmi_pmic_arb {
> > */
> > struct pmic_arb_ver_ops {
> > const char *ver_str;
> > + int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
> > int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
> > /* spmi commands (read_cmd, write_cmd, cmd) functionality */
> > int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> > @@ -942,6 +944,38 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
> > return 0;
> > }
> > +static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
> > +{
> > + /*
> > + * Initialize max_apid/min_apid to the opposite bounds, during
> > + * the irq domain translation, we are sure to update these
> > + */
> > + pmic_arb->max_apid = 0;
> > + pmic_arb->min_apid = pmic_arb->max_periphs - 1;
> > +
> > + return 0;
> > +}
> > +
> > +static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
> > +{
> > + u32 *mapping_table;
> > +
> > + if (index) {
> > + dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> > + index);
> > + return -EINVAL;
> > + }
> > +
> > + mapping_table = devm_kcalloc(&pmic_arb->spmic->dev, pmic_arb->max_periphs,
> > + sizeof(*mapping_table), GFP_KERNEL);
> > + if (!mapping_table)
> > + return -ENOMEM;
> > +
> > + pmic_arb->mapping_table = mapping_table;
>
> Can you specify in the spmi_pmic_arb->mapping_table struct documentation the mapping_table
> is only used in v1 ? or even better rename it to mapping_table_v1
>
Actually the mapping_table is used on version 1 through 3.
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH RESEND v6 3/5] spmi: pmic-arb: Make the APID init a version operation
@ 2024-03-29 16:32 ` Abel Vesa
0 siblings, 0 replies; 34+ messages in thread
From: Abel Vesa @ 2024-03-29 16:32 UTC (permalink / raw)
To: Neil Armstrong
Cc: Stephen Boyd, Matthias Brugger, Bjorn Andersson, Konrad Dybcio,
Dmitry Baryshkov, AngeloGioacchino Del Regno, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Srini Kandagatla,
Johan Hovold, linux-kernel, linux-arm-kernel, linux-arm-msm,
linux-mediatek, devicetree
On 24-03-28 09:51:49, Neil Armstrong wrote:
> On 26/03/2024 17:28, Abel Vesa wrote:
> > Rather than using conditionals in probe function, add the APID init
> > as a version specific operation. Due to v7, which supports multiple
> > buses, pass on the bus index to be used for sorting out the apid base
> > and count.
> >
> > Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> > ---
> > drivers/spmi/spmi-pmic-arb.c | 199 +++++++++++++++++++++++++++----------------
> > 1 file changed, 124 insertions(+), 75 deletions(-)
> >
> > diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
> > index 9ed1180fe31f..38fed8a585fe 100644
> > --- a/drivers/spmi/spmi-pmic-arb.c
> > +++ b/drivers/spmi/spmi-pmic-arb.c
> > @@ -183,6 +183,7 @@ struct spmi_pmic_arb {
> > * struct pmic_arb_ver_ops - version dependent functionality.
> > *
> > * @ver_str: version string.
> > + * @init_apid: finds the apid base and count
> > * @ppid_to_apid: finds the apid for a given ppid.
> > * @non_data_cmd: on v1 issues an spmi non-data command.
> > * on v2 no HW support, returns -EOPNOTSUPP.
> > @@ -202,6 +203,7 @@ struct spmi_pmic_arb {
> > */
> > struct pmic_arb_ver_ops {
> > const char *ver_str;
> > + int (*init_apid)(struct spmi_pmic_arb *pmic_arb, int index);
> > int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
> > /* spmi commands (read_cmd, write_cmd, cmd) functionality */
> > int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
> > @@ -942,6 +944,38 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain,
> > return 0;
> > }
> > +static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb *pmic_arb)
> > +{
> > + /*
> > + * Initialize max_apid/min_apid to the opposite bounds, during
> > + * the irq domain translation, we are sure to update these
> > + */
> > + pmic_arb->max_apid = 0;
> > + pmic_arb->min_apid = pmic_arb->max_periphs - 1;
> > +
> > + return 0;
> > +}
> > +
> > +static int pmic_arb_init_apid_v1(struct spmi_pmic_arb *pmic_arb, int index)
> > +{
> > + u32 *mapping_table;
> > +
> > + if (index) {
> > + dev_err(&pmic_arb->spmic->dev, "Unsupported buses count %d detected\n",
> > + index);
> > + return -EINVAL;
> > + }
> > +
> > + mapping_table = devm_kcalloc(&pmic_arb->spmic->dev, pmic_arb->max_periphs,
> > + sizeof(*mapping_table), GFP_KERNEL);
> > + if (!mapping_table)
> > + return -ENOMEM;
> > +
> > + pmic_arb->mapping_table = mapping_table;
>
> Can you specify in the spmi_pmic_arb->mapping_table struct documentation the mapping_table
> is only used in v1 ? or even better rename it to mapping_table_v1
>
Actually the mapping_table is used on version 1 through 3.
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^ permalink raw reply [flat|nested] 34+ messages in thread
end of thread, other threads:[~2024-03-29 16:33 UTC | newest]
Thread overview: 34+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-03-26 16:28 [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses Abel Vesa
2024-03-26 16:28 ` Abel Vesa
2024-03-26 16:28 ` [PATCH RESEND v6 1/5] dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema Abel Vesa
2024-03-26 16:28 ` Abel Vesa
2024-03-27 18:40 ` Krzysztof Kozlowski
2024-03-27 18:40 ` Krzysztof Kozlowski
2024-03-26 16:28 ` [PATCH RESEND v6 2/5] dt-bindings: spmi: Deprecate qcom,bus-id Abel Vesa
2024-03-26 16:28 ` Abel Vesa
2024-03-26 16:28 ` [PATCH RESEND v6 3/5] spmi: pmic-arb: Make the APID init a version operation Abel Vesa
2024-03-26 16:28 ` Abel Vesa
2024-03-28 8:51 ` Neil Armstrong
2024-03-28 8:51 ` Neil Armstrong
2024-03-29 16:32 ` Abel Vesa
2024-03-29 16:32 ` Abel Vesa
2024-03-26 16:28 ` [PATCH RESEND v6 4/5] spmi: pmic-arb: Make core resources acquiring " Abel Vesa
2024-03-26 16:28 ` Abel Vesa
2024-03-28 8:54 ` Neil Armstrong
2024-03-28 8:54 ` Neil Armstrong
2024-03-26 16:28 ` [PATCH RESEND v6 5/5] spmi: pmic-arb: Add multi bus support Abel Vesa
2024-03-26 16:28 ` Abel Vesa
2024-03-28 9:05 ` Neil Armstrong
2024-03-28 9:05 ` Neil Armstrong
2024-03-26 19:32 ` [PATCH RESEND v6 0/5] spmi: pmic-arb: Add support for multiple buses Rob Herring
2024-03-26 19:32 ` Rob Herring
2024-03-26 19:57 ` Abel Vesa
2024-03-26 19:57 ` Abel Vesa
2024-03-27 9:23 ` Krzysztof Kozlowski
2024-03-27 9:23 ` Krzysztof Kozlowski
2024-03-27 10:37 ` Abel Vesa
2024-03-27 10:37 ` Abel Vesa
2024-03-27 10:44 ` Krzysztof Kozlowski
2024-03-27 10:44 ` Krzysztof Kozlowski
2024-03-28 9:07 ` Neil Armstrong
2024-03-28 9:07 ` Neil Armstrong
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