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* [PATCH v3 00/13] Use qmp_send to update co-processor load state
@ 2021-06-24 18:51 Sibi Sankar
  2021-06-24 18:51 ` [PATCH v3 01/13] dt-bindings: soc: qcom: aoss: Drop power-domain bindings Sibi Sankar
                   ` (12 more replies)
  0 siblings, 13 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:51 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

The power domains exposed by the AOSS QMP driver control the load state
resources linked to modem, adsp, cdsp remoteprocs. These are used to
notify the Always on Subsystem (AOSS) that a particular co-processor is
up/down. AOSS uses this information to wait for the co-processors to
suspend before starting its sleep sequence. These co-processors enter
low-power modes independent to that of the application processor and
the load state resources linked to them are expected to remain unaltered
across system suspend/resume cycles. To achieve this behavior let's stop
modeling them as power-domains and replace them with generic qmp_send
interface instead.

https://lore.kernel.org/lkml/20200913034603.GV3715@yoga/
Previous dicussion on dropping power-domain support from AOSS QMP driver

Depends on:
qmp_send: https://patchwork.kernel.org/project/linux-arm-msm/cover/1623237532-20829-1-git-send-email-sibis@codeaurora.org/

V3:
 * Misc. documentation fixes [patch 2]:
  - Reduce power-domain maxItems due to load_state pd removal
  - Combine compatibles where possible with the load_state pd removal
  - Fixup the qcom,qmp ref to phandle type

V2:
 * load_state is currently broken on mainline so be safely dropped
   without side-effects.
 * Rebased on top of qmp_send v3 series.
 * Dropped R-b from Stephen and Rob on patch 3 due to the yaml
   conversion.
 * New patch [12] to drop unused aoss-qmp header.
 * Commit message update [patch 1] [Rob]
 * Reorder the series [Stephen]

Sibi Sankar (13):
  dt-bindings: soc: qcom: aoss: Drop power-domain bindings
  dt-bindings: remoteproc: qcom: pas: Add QMP bindings
  dt-bindings: remoteproc: qcom: Add QMP bindings
  remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state
  arm64: dts: qcom: sc7180: Use QMP binding to control load state
  arm64: dts: qcom: sc7280: Use QMP binding to control load state
  arm64: dts: qcom: sdm845: Use QMP binding to control load state
  arm64: dts: qcom: sm8150: Use QMP binding to control load state
  arm64: dts: qcom: sm8250: Use QMP binding to control load state
  arm64: dts: qcom: sm8350: Use QMP binding to control load state
  soc: qcom: aoss: Drop power domain support
  dt-bindings: msm/dp: Remove aoss-qmp header
  dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions

 .../bindings/display/msm/dp-controller.yaml        |   1 -
 .../devicetree/bindings/remoteproc/qcom,adsp.yaml  |  62 ++++++------
 .../devicetree/bindings/remoteproc/qcom,q6v5.txt   |   7 +-
 .../devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt |  16 +--
 arch/arm64/boot/dts/qcom/sc7180.dtsi               |   9 +-
 arch/arm64/boot/dts/qcom/sc7280.dtsi               |   2 -
 arch/arm64/boot/dts/qcom/sdm845.dtsi               |   8 +-
 arch/arm64/boot/dts/qcom/sm8150.dtsi               |  28 +++---
 arch/arm64/boot/dts/qcom/sm8250.dtsi               |  22 ++---
 arch/arm64/boot/dts/qcom/sm8350.dtsi               |  30 +++---
 drivers/remoteproc/qcom_q6v5.c                     |  56 ++++++++++-
 drivers/remoteproc/qcom_q6v5.h                     |   7 +-
 drivers/remoteproc/qcom_q6v5_adsp.c                |   7 +-
 drivers/remoteproc/qcom_q6v5_mss.c                 |  44 ++-------
 drivers/remoteproc/qcom_q6v5_pas.c                 |  80 ++++-----------
 drivers/remoteproc/qcom_q6v5_wcss.c                |   4 +-
 drivers/soc/qcom/qcom_aoss.c                       | 109 +--------------------
 include/dt-bindings/power/qcom-aoss-qmp.h          |  14 ---
 18 files changed, 184 insertions(+), 322 deletions(-)
 delete mode 100644 include/dt-bindings/power/qcom-aoss-qmp.h

-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 01/13] dt-bindings: soc: qcom: aoss: Drop power-domain bindings
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
@ 2021-06-24 18:51 ` Sibi Sankar
  2021-06-25 21:31   ` Matthias Kaehlcke
  2021-06-24 18:51 ` [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings Sibi Sankar
                   ` (11 subsequent siblings)
  12 siblings, 1 reply; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:51 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

The power-domains exposed by AOSS QMP node are used to notify the Always
on Subsystem (AOSS) that a particular co-processor is up/down. These
co-processors enter low-power modes independent to that of the application
processor and their states are expected to remain unaltered across system
suspend/resume cycles. To achieve this behavior let's drop the power-domain
bindings and replace them with generic qmp_send interface instead.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt       | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt
index 783dc81b0f26..c0ae051a5b76 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt
@@ -9,8 +9,7 @@ Messaging Protocol (QMP)
 
 The AOSS side channel exposes control over a set of resources, used to control
 a set of debug related clocks and to affect the low power state of resources
-related to the secondary subsystems. These resources are exposed as a set of
-power-domains.
+related to the secondary subsystems.
 
 - compatible:
 	Usage: required
@@ -46,14 +45,6 @@ power-domains.
 	Definition: must be 0
 		    The single clock represents the QDSS clock.
 
-- #power-domain-cells:
-	Usage: optional
-	Value type: <u32>
-	Definition: must be 1
-		    The provided power-domains are:
-		    CDSP state (0), LPASS state (1), modem state (2), SLPI
-		    state (3), SPSS state (4) and Venus state (5).
-
 = SUBNODES
 The AOSS side channel also provides the controls for three cooling devices,
 these are expressed as subnodes of the QMP node. The name of the node is used
@@ -66,8 +57,7 @@ to identify the resource and must therefor be "cx", "mx" or "ebi".
 
 = EXAMPLE
 
-The following example represents the AOSS side-channel message RAM and the
-mechanism exposing the power-domains, as found in SDM845.
+The following example represents the AOSS side-channel message RAM as found in SDM845.
 
   aoss_qmp: qmp@c300000 {
 	  compatible = "qcom,sdm845-aoss-qmp";
@@ -75,8 +65,6 @@ mechanism exposing the power-domains, as found in SDM845.
 	  interrupts = <GIC_SPI 389 IRQ_TYPE_EDGE_RISING>;
 	  mboxes = <&apss_shared 0>;
 
-	  #power-domain-cells = <1>;
-
 	  cx_cdev: cx {
 		#cooling-cells = <2>;
 	  };
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
  2021-06-24 18:51 ` [PATCH v3 01/13] dt-bindings: soc: qcom: aoss: Drop power-domain bindings Sibi Sankar
@ 2021-06-24 18:51 ` Sibi Sankar
  2021-06-25 21:19   ` Matthias Kaehlcke
                     ` (2 more replies)
  2021-06-24 18:51 ` [PATCH v3 03/13] dt-bindings: remoteproc: qcom: " Sibi Sankar
                   ` (10 subsequent siblings)
  12 siblings, 3 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:51 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

Add Qualcomm Mailbox Protocol (QMP) binding to replace the power domains
exposed by the AOSS QMP node.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
---

v3:
 * Misc. documentation fixes:
  - Reduce power-domain maxItems due to load_state pd removal
  - Combine compatibles where possible with the load_state pd removal
  - Fixup the qcom,qmp ref to phandle type

 .../devicetree/bindings/remoteproc/qcom,adsp.yaml  | 62 +++++++++++-----------
 1 file changed, 30 insertions(+), 32 deletions(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
index 9ea05e608bc1..ad85617b43fa 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
@@ -75,11 +75,11 @@ properties:
 
   power-domains:
     minItems: 1
-    maxItems: 3
+    maxItems: 2
 
   power-domain-names:
     minItems: 1
-    maxItems: 3
+    maxItems: 2
 
   firmware-name:
     $ref: /schemas/types.yaml#/definitions/string
@@ -89,6 +89,10 @@ properties:
     maxItems: 1
     description: Reference to the reserved-memory for the Hexagon core
 
+  qcom,qmp:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: Reference to the AOSS side-channel message RAM.
+
   qcom,smem-states:
     $ref: /schemas/types.yaml#/definitions/phandle-array
     description: States used by the AP to signal the Hexagon core
@@ -359,13 +363,11 @@ allOf:
       properties:
         power-domains:
           items:
-            - description: Load State power domain
             - description: CX power domain
             - description: MX power domain
             - description: MSS power domain
         power-domain-names:
           items:
-            - const: load_state
             - const: cx
             - const: mx
             - const: mss
@@ -381,43 +383,20 @@ allOf:
       properties:
         power-domains:
           items:
-            - description: Load State power domain
             - description: CX power domain
-        power-domain-names:
-          items:
-            - const: load_state
-            - const: cx
 
   - if:
       properties:
         compatible:
           contains:
             enum:
+              - qcom,sdx55-mpss-pas
               - qcom,sm8150-mpss-pas
               - qcom,sm8350-mpss-pas
     then:
       properties:
         power-domains:
           items:
-            - description: Load State power domain
-            - description: CX power domain
-            - description: MSS power domain
-        power-domain-names:
-          items:
-            - const: load_state
-            - const: cx
-            - const: mss
-
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - qcom,sdx55-mpss-pas
-    then:
-      properties:
-        power-domains:
-          items:
             - description: CX power domain
             - description: MSS power domain
         power-domain-names:
@@ -439,12 +418,10 @@ allOf:
       properties:
         power-domains:
           items:
-            - description: Load State power domain
             - description: LCX power domain
             - description: LMX power domain
         power-domain-names:
           items:
-            - const: load_state
             - const: lcx
             - const: lmx
 
@@ -458,12 +435,10 @@ allOf:
       properties:
         power-domains:
           items:
-            - description: Load State power domain
             - description: CX power domain
             - description: MXC power domain
         power-domain-names:
           items:
-            - const: load_state
             - const: cx
             - const: mxc
 
@@ -499,6 +474,29 @@ allOf:
             - const: mss_restart
             - const: pdc_reset
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,sc7180-mpss-pas
+              - qcom,sm8150-adsp-pas
+              - qcom,sm8150-cdsp-pas
+              - qcom,sm8150-mpss-pas
+              - qcom,sm8150-slpi-pas
+              - qcom,sm8250-adsp-pas
+              - qcom,sm8250-cdsp-pas
+              - qcom,sm8250-slpi-pas
+              - qcom,sm8350-adsp-pas
+              - qcom,sm8350-cdsp-pas
+              - qcom,sm8350-mpss-pas
+              - qcom,sm8350-slpi-pas
+    then:
+      properties:
+        qcom,qmp:
+          items:
+            - description: Reference to the AOSS side-channel message RAM.
+
 examples:
   - |
     #include <dt-bindings/clock/qcom,rpmcc.h>
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 03/13] dt-bindings: remoteproc: qcom: Add QMP bindings
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
  2021-06-24 18:51 ` [PATCH v3 01/13] dt-bindings: soc: qcom: aoss: Drop power-domain bindings Sibi Sankar
  2021-06-24 18:51 ` [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings Sibi Sankar
@ 2021-06-24 18:51 ` Sibi Sankar
  2021-06-24 18:51 ` [PATCH v3 04/13] remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state Sibi Sankar
                   ` (9 subsequent siblings)
  12 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:51 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

Add Qualcomm Mailbox Protocol (QMP) binding to replace the power domains
exposed by the AOSS QMP node.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
index 69c49c7b2cff..494257010629 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
@@ -174,7 +174,12 @@ For the compatible string below the following supplies are required:
 		    must be "cx", "mx"
 	qcom,sc7180-mss-pil:
 	qcom,sdm845-mss-pil:
-		    must be "cx", "mx", "mss", "load_state"
+		    must be "cx", "mx", "mss"
+
+- qcom,qmp:
+	Usage: optional
+	Value type: <phandle>
+	Definition: reference to the AOSS side-channel message RAM.
 
 - qcom,smem-states:
 	Usage: required
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 04/13] remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
                   ` (2 preceding siblings ...)
  2021-06-24 18:51 ` [PATCH v3 03/13] dt-bindings: remoteproc: qcom: " Sibi Sankar
@ 2021-06-24 18:51 ` Sibi Sankar
  2021-06-25 21:11   ` Matthias Kaehlcke
  2021-06-24 18:51 ` [PATCH v3 05/13] arm64: dts: qcom: sc7180: Use QMP binding to control " Sibi Sankar
                   ` (8 subsequent siblings)
  12 siblings, 1 reply; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:51 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

The power domains exposed by the AOSS QMP driver control the load state
resources linked to modem, adsp, cdsp remoteprocs. These are used to
notify the Always on Subsystem (AOSS) that a particular co-processor is
up/down. AOSS uses this information to wait for the co-processors to
suspend before starting its sleep sequence.

These co-processors enter low-power modes independent to that of the
application processor and the load state resources linked to them are
expected to remain unaltered across system suspend/resume cycles. To
achieve this behavior lets stop using the power-domains exposed by the
AOSS QMP node and replace them with generic qmp_send interface instead.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
---
 drivers/remoteproc/qcom_q6v5.c      | 56 +++++++++++++++++++++++++-
 drivers/remoteproc/qcom_q6v5.h      |  7 +++-
 drivers/remoteproc/qcom_q6v5_adsp.c |  7 +++-
 drivers/remoteproc/qcom_q6v5_mss.c  | 44 ++++----------------
 drivers/remoteproc/qcom_q6v5_pas.c  | 80 +++++++++----------------------------
 drivers/remoteproc/qcom_q6v5_wcss.c |  4 +-
 6 files changed, 94 insertions(+), 104 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5.c b/drivers/remoteproc/qcom_q6v5.c
index 9627a950928e..4a9a481c211b 100644
--- a/drivers/remoteproc/qcom_q6v5.c
+++ b/drivers/remoteproc/qcom_q6v5.c
@@ -16,8 +16,28 @@
 #include "qcom_common.h"
 #include "qcom_q6v5.h"
 
+#define Q6V5_LOAD_STATE_MSG_LEN	64
 #define Q6V5_PANIC_DELAY_MS	200
 
+static int q6v5_load_state_toggle(struct qcom_q6v5 *q6v5, bool enable)
+{
+	char buf[Q6V5_LOAD_STATE_MSG_LEN] = {};
+	int ret;
+
+	if (IS_ERR(q6v5->qmp))
+		return 0;
+
+	snprintf(buf, sizeof(buf),
+		 "{class: image, res: load_state, name: %s, val: %s}",
+		 q6v5->load_state, enable ? "on" : "off");
+
+	ret = qmp_send(q6v5->qmp, buf, sizeof(buf));
+	if (ret)
+		dev_err(q6v5->dev, "failed to toggle load state\n");
+
+	return ret;
+}
+
 /**
  * qcom_q6v5_prepare() - reinitialize the qcom_q6v5 context before start
  * @q6v5:	reference to qcom_q6v5 context to be reinitialized
@@ -26,6 +46,12 @@
  */
 int qcom_q6v5_prepare(struct qcom_q6v5 *q6v5)
 {
+	int ret;
+
+	ret = q6v5_load_state_toggle(q6v5, true);
+	if (ret)
+		return ret;
+
 	reinit_completion(&q6v5->start_done);
 	reinit_completion(&q6v5->stop_done);
 
@@ -47,6 +73,7 @@ EXPORT_SYMBOL_GPL(qcom_q6v5_prepare);
 int qcom_q6v5_unprepare(struct qcom_q6v5 *q6v5)
 {
 	disable_irq(q6v5->handover_irq);
+	q6v5_load_state_toggle(q6v5, false);
 
 	return !q6v5->handover_issued;
 }
@@ -196,12 +223,13 @@ EXPORT_SYMBOL_GPL(qcom_q6v5_panic);
  * @pdev:	platform_device reference for acquiring resources
  * @rproc:	associated remoteproc instance
  * @crash_reason: SMEM id for crash reason string, or 0 if none
+ * @load_state: load state resource string
  * @handover:	function to be called when proxy resources should be released
  *
  * Return: 0 on success, negative errno on failure
  */
 int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device *pdev,
-		   struct rproc *rproc, int crash_reason,
+		   struct rproc *rproc, int crash_reason, const char *load_state,
 		   void (*handover)(struct qcom_q6v5 *q6v5))
 {
 	int ret;
@@ -210,6 +238,7 @@ int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device *pdev,
 	q6v5->dev = &pdev->dev;
 	q6v5->crash_reason = crash_reason;
 	q6v5->handover = handover;
+	q6v5->load_state = kstrdup_const(load_state, GFP_KERNEL);
 
 	init_completion(&q6v5->start_done);
 	init_completion(&q6v5->stop_done);
@@ -286,9 +315,34 @@ int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device *pdev,
 		return PTR_ERR(q6v5->state);
 	}
 
+	q6v5->qmp = qmp_get(&pdev->dev);
+	if (IS_ERR(q6v5->qmp)) {
+		if (PTR_ERR(q6v5->qmp) != -ENODEV) {
+			if (PTR_ERR(q6v5->qmp) != -EPROBE_DEFER)
+				dev_err(&pdev->dev, "failed to acquire load state\n");
+			return PTR_ERR(q6v5->qmp);
+		}
+	} else {
+		if (!q6v5->load_state) {
+			dev_err(&pdev->dev, "load state resource string empty\n");
+			return -EINVAL;
+		}
+	}
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(qcom_q6v5_init);
 
+/**
+ * qcom_q6v5_deinit() - deinitialize the q6v5 common struct
+ * @q6v5:	reference to qcom_q6v5 context to be deinitialized
+ * @pdev:	platform_device reference for acquiring resources
+ */
+void qcom_q6v5_deinit(struct qcom_q6v5 *q6v5, struct platform_device *pdev)
+{
+	qmp_put(q6v5->qmp);
+}
+EXPORT_SYMBOL_GPL(qcom_q6v5_deinit);
+
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("Qualcomm Peripheral Image Loader for Q6V5");
diff --git a/drivers/remoteproc/qcom_q6v5.h b/drivers/remoteproc/qcom_q6v5.h
index 1c212f670cbc..3d9f525cb4ec 100644
--- a/drivers/remoteproc/qcom_q6v5.h
+++ b/drivers/remoteproc/qcom_q6v5.h
@@ -5,6 +5,7 @@
 
 #include <linux/kernel.h>
 #include <linux/completion.h>
+#include <linux/soc/qcom/qcom_aoss.h>
 
 struct rproc;
 struct qcom_smem_state;
@@ -15,6 +16,8 @@ struct qcom_q6v5 {
 	struct rproc *rproc;
 
 	struct qcom_smem_state *state;
+	struct qmp *qmp;
+
 	unsigned stop_bit;
 
 	int wdog_irq;
@@ -32,12 +35,14 @@ struct qcom_q6v5 {
 
 	bool running;
 
+	const char *load_state;
 	void (*handover)(struct qcom_q6v5 *q6v5);
 };
 
 int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device *pdev,
-		   struct rproc *rproc, int crash_reason,
+		   struct rproc *rproc, int crash_reason, const char *load_state,
 		   void (*handover)(struct qcom_q6v5 *q6v5));
+void qcom_q6v5_deinit(struct qcom_q6v5 *q6v5, struct platform_device *pdev);
 
 int qcom_q6v5_prepare(struct qcom_q6v5 *q6v5);
 int qcom_q6v5_unprepare(struct qcom_q6v5 *q6v5);
diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
index 8b0d8bbacd2e..0f5e0fd216b4 100644
--- a/drivers/remoteproc/qcom_q6v5_adsp.c
+++ b/drivers/remoteproc/qcom_q6v5_adsp.c
@@ -185,7 +185,9 @@ static int adsp_start(struct rproc *rproc)
 	int ret;
 	unsigned int val;
 
-	qcom_q6v5_prepare(&adsp->q6v5);
+	ret = qcom_q6v5_prepare(&adsp->q6v5);
+	if (ret)
+		return ret;
 
 	ret = clk_prepare_enable(adsp->xo);
 	if (ret)
@@ -465,7 +467,7 @@ static int adsp_probe(struct platform_device *pdev)
 	if (ret)
 		goto disable_pm;
 
-	ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem,
+	ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem, NULL,
 			     qcom_adsp_pil_handover);
 	if (ret)
 		goto disable_pm;
@@ -500,6 +502,7 @@ static int adsp_remove(struct platform_device *pdev)
 
 	rproc_del(adsp->rproc);
 
+	qcom_q6v5_deinit(&adsp->q6v5, pdev);
 	qcom_remove_glink_subdev(adsp->rproc, &adsp->glink_subdev);
 	qcom_remove_sysmon_subdev(adsp->sysmon);
 	qcom_remove_ssr_subdev(adsp->rproc, &adsp->ssr_subdev);
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 423b31dfa574..5d21084004cb 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -137,7 +137,6 @@ struct rproc_hexagon_res {
 	char **proxy_clk_names;
 	char **reset_clk_names;
 	char **active_clk_names;
-	char **active_pd_names;
 	char **proxy_pd_names;
 	int version;
 	bool need_mem_protection;
@@ -169,12 +168,10 @@ struct q6v5 {
 	struct clk *active_clks[8];
 	struct clk *reset_clks[4];
 	struct clk *proxy_clks[4];
-	struct device *active_pds[1];
 	struct device *proxy_pds[3];
 	int active_clk_count;
 	int reset_clk_count;
 	int proxy_clk_count;
-	int active_pd_count;
 	int proxy_pd_count;
 
 	struct reg_info active_regs[1];
@@ -895,18 +892,14 @@ static int q6v5_mba_load(struct q6v5 *qproc)
 	int xfermemop_ret;
 	bool mba_load_err = false;
 
-	qcom_q6v5_prepare(&qproc->q6v5);
-
-	ret = q6v5_pds_enable(qproc, qproc->active_pds, qproc->active_pd_count);
-	if (ret < 0) {
-		dev_err(qproc->dev, "failed to enable active power domains\n");
-		goto disable_irqs;
-	}
+	ret = qcom_q6v5_prepare(&qproc->q6v5);
+	if (ret)
+		return ret;
 
 	ret = q6v5_pds_enable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
 	if (ret < 0) {
 		dev_err(qproc->dev, "failed to enable proxy power domains\n");
-		goto disable_active_pds;
+		goto disable_irqs;
 	}
 
 	ret = q6v5_regulator_enable(qproc, qproc->fallback_proxy_regs,
@@ -1039,8 +1032,6 @@ static int q6v5_mba_load(struct q6v5 *qproc)
 			       qproc->fallback_proxy_reg_count);
 disable_proxy_pds:
 	q6v5_pds_disable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
-disable_active_pds:
-	q6v5_pds_disable(qproc, qproc->active_pds, qproc->active_pd_count);
 disable_irqs:
 	qcom_q6v5_unprepare(&qproc->q6v5);
 
@@ -1076,7 +1067,6 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc)
 			 qproc->active_clk_count);
 	q6v5_regulator_disable(qproc, qproc->active_regs,
 			       qproc->active_reg_count);
-	q6v5_pds_disable(qproc, qproc->active_pds, qproc->active_pd_count);
 
 	/* In case of failure or coredump scenario where reclaiming MBA memory
 	 * could not happen reclaim it here.
@@ -1756,14 +1746,6 @@ static int q6v5_probe(struct platform_device *pdev)
 	}
 	qproc->active_reg_count = ret;
 
-	ret = q6v5_pds_attach(&pdev->dev, qproc->active_pds,
-			      desc->active_pd_names);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Failed to attach active power domains\n");
-		goto free_rproc;
-	}
-	qproc->active_pd_count = ret;
-
 	ret = q6v5_pds_attach(&pdev->dev, qproc->proxy_pds,
 			      desc->proxy_pd_names);
 	/* Fallback to regulators for old device trees */
@@ -1773,12 +1755,12 @@ static int q6v5_probe(struct platform_device *pdev)
 					  desc->fallback_proxy_supply);
 		if (ret < 0) {
 			dev_err(&pdev->dev, "Failed to get fallback proxy regulators.\n");
-			goto detach_active_pds;
+			goto free_rproc;
 		}
 		qproc->fallback_proxy_reg_count = ret;
 	} else if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to init power domains\n");
-		goto detach_active_pds;
+		goto free_rproc;
 	} else {
 		qproc->proxy_pd_count = ret;
 	}
@@ -1792,7 +1774,7 @@ static int q6v5_probe(struct platform_device *pdev)
 	qproc->need_mem_protection = desc->need_mem_protection;
 	qproc->has_mba_logs = desc->has_mba_logs;
 
-	ret = qcom_q6v5_init(&qproc->q6v5, pdev, rproc, MPSS_CRASH_REASON_SMEM,
+	ret = qcom_q6v5_init(&qproc->q6v5, pdev, rproc, MPSS_CRASH_REASON_SMEM, "modem",
 			     qcom_msa_handover);
 	if (ret)
 		goto detach_proxy_pds;
@@ -1822,8 +1804,6 @@ static int q6v5_probe(struct platform_device *pdev)
 	qcom_remove_glink_subdev(rproc, &qproc->glink_subdev);
 detach_proxy_pds:
 	q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
-detach_active_pds:
-	q6v5_pds_detach(qproc, qproc->active_pds, qproc->active_pd_count);
 free_rproc:
 	rproc_free(rproc);
 
@@ -1837,13 +1817,13 @@ static int q6v5_remove(struct platform_device *pdev)
 
 	rproc_del(rproc);
 
+	qcom_q6v5_deinit(&qproc->q6v5, pdev);
 	qcom_remove_sysmon_subdev(qproc->sysmon);
 	qcom_remove_ssr_subdev(rproc, &qproc->ssr_subdev);
 	qcom_remove_smd_subdev(rproc, &qproc->smd_subdev);
 	qcom_remove_glink_subdev(rproc, &qproc->glink_subdev);
 
 	q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
-	q6v5_pds_detach(qproc, qproc->active_pds, qproc->active_pd_count);
 
 	rproc_free(rproc);
 
@@ -1867,10 +1847,6 @@ static const struct rproc_hexagon_res sc7180_mss = {
 		"nav",
 		NULL
 	},
-	.active_pd_names = (char*[]){
-		"load_state",
-		NULL
-	},
 	.proxy_pd_names = (char*[]){
 		"cx",
 		"mx",
@@ -1903,10 +1879,6 @@ static const struct rproc_hexagon_res sdm845_mss = {
 			"mnoc_axi",
 			NULL
 	},
-	.active_pd_names = (char*[]){
-			"load_state",
-			NULL
-	},
 	.proxy_pd_names = (char*[]){
 			"cx",
 			"mx",
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index ad20065dbdea..282b56effe8b 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -37,9 +37,9 @@ struct adsp_data {
 	bool has_aggre2_clk;
 	bool auto_boot;
 
-	char **active_pd_names;
 	char **proxy_pd_names;
 
+	const char *load_state;
 	const char *ssr_name;
 	const char *sysmon_name;
 	int ssctl_id;
@@ -57,10 +57,8 @@ struct qcom_adsp {
 	struct regulator *cx_supply;
 	struct regulator *px_supply;
 
-	struct device *active_pds[1];
 	struct device *proxy_pds[3];
 
-	int active_pd_count;
 	int proxy_pd_count;
 
 	int pas_id;
@@ -149,15 +147,13 @@ static int adsp_start(struct rproc *rproc)
 	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
 	int ret;
 
-	qcom_q6v5_prepare(&adsp->q6v5);
-
-	ret = adsp_pds_enable(adsp, adsp->active_pds, adsp->active_pd_count);
-	if (ret < 0)
-		goto disable_irqs;
+	ret = qcom_q6v5_prepare(&adsp->q6v5);
+	if (ret)
+		return ret;
 
 	ret = adsp_pds_enable(adsp, adsp->proxy_pds, adsp->proxy_pd_count);
 	if (ret < 0)
-		goto disable_active_pds;
+		goto disable_irqs;
 
 	ret = clk_prepare_enable(adsp->xo);
 	if (ret)
@@ -201,8 +197,6 @@ static int adsp_start(struct rproc *rproc)
 	clk_disable_unprepare(adsp->xo);
 disable_proxy_pds:
 	adsp_pds_disable(adsp, adsp->proxy_pds, adsp->proxy_pd_count);
-disable_active_pds:
-	adsp_pds_disable(adsp, adsp->active_pds, adsp->active_pd_count);
 disable_irqs:
 	qcom_q6v5_unprepare(&adsp->q6v5);
 
@@ -234,7 +228,6 @@ static int adsp_stop(struct rproc *rproc)
 	if (ret)
 		dev_err(adsp->dev, "failed to shutdown: %d\n", ret);
 
-	adsp_pds_disable(adsp, adsp->active_pds, adsp->active_pd_count);
 	handover = qcom_q6v5_unprepare(&adsp->q6v5);
 	if (handover)
 		qcom_pas_handover(&adsp->q6v5);
@@ -456,19 +449,13 @@ static int adsp_probe(struct platform_device *pdev)
 	if (ret)
 		goto free_rproc;
 
-	ret = adsp_pds_attach(&pdev->dev, adsp->active_pds,
-			      desc->active_pd_names);
-	if (ret < 0)
-		goto free_rproc;
-	adsp->active_pd_count = ret;
-
 	ret = adsp_pds_attach(&pdev->dev, adsp->proxy_pds,
 			      desc->proxy_pd_names);
 	if (ret < 0)
-		goto detach_active_pds;
+		goto free_rproc;
 	adsp->proxy_pd_count = ret;
 
-	ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem,
+	ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem, desc->load_state,
 			     qcom_pas_handover);
 	if (ret)
 		goto detach_proxy_pds;
@@ -492,8 +479,6 @@ static int adsp_probe(struct platform_device *pdev)
 
 detach_proxy_pds:
 	adsp_pds_detach(adsp, adsp->proxy_pds, adsp->proxy_pd_count);
-detach_active_pds:
-	adsp_pds_detach(adsp, adsp->active_pds, adsp->active_pd_count);
 free_rproc:
 	rproc_free(rproc);
 
@@ -506,6 +491,7 @@ static int adsp_remove(struct platform_device *pdev)
 
 	rproc_del(adsp->rproc);
 
+	qcom_q6v5_deinit(&adsp->q6v5, pdev);
 	qcom_remove_glink_subdev(adsp->rproc, &adsp->glink_subdev);
 	qcom_remove_sysmon_subdev(adsp->sysmon);
 	qcom_remove_smd_subdev(adsp->rproc, &adsp->smd_subdev);
@@ -532,14 +518,11 @@ static const struct adsp_data sm8150_adsp_resource = {
 		.pas_id = 1,
 		.has_aggre2_clk = false,
 		.auto_boot = true,
-		.active_pd_names = (char*[]){
-			"load_state",
-			NULL
-		},
 		.proxy_pd_names = (char*[]){
 			"cx",
 			NULL
 		},
+		.load_state = "adsp",
 		.ssr_name = "lpass",
 		.sysmon_name = "adsp",
 		.ssctl_id = 0x14,
@@ -551,15 +534,12 @@ static const struct adsp_data sm8250_adsp_resource = {
 	.pas_id = 1,
 	.has_aggre2_clk = false,
 	.auto_boot = true,
-	.active_pd_names = (char*[]){
-		"load_state",
-		NULL
-	},
 	.proxy_pd_names = (char*[]){
 		"lcx",
 		"lmx",
 		NULL
 	},
+	.load_state = "adsp",
 	.ssr_name = "lpass",
 	.sysmon_name = "adsp",
 	.ssctl_id = 0x14,
@@ -571,15 +551,12 @@ static const struct adsp_data sm8350_adsp_resource = {
 	.pas_id = 1,
 	.has_aggre2_clk = false,
 	.auto_boot = true,
-	.active_pd_names = (char*[]){
-		"load_state",
-		NULL
-	},
 	.proxy_pd_names = (char*[]){
 		"lcx",
 		"lmx",
 		NULL
 	},
+	.load_state = "adsp",
 	.ssr_name = "lpass",
 	.sysmon_name = "adsp",
 	.ssctl_id = 0x14,
@@ -617,14 +594,11 @@ static const struct adsp_data sm8150_cdsp_resource = {
 	.pas_id = 18,
 	.has_aggre2_clk = false,
 	.auto_boot = true,
-	.active_pd_names = (char*[]){
-		"load_state",
-		NULL
-	},
 	.proxy_pd_names = (char*[]){
 		"cx",
 		NULL
 	},
+	.load_state = "cdsp",
 	.ssr_name = "cdsp",
 	.sysmon_name = "cdsp",
 	.ssctl_id = 0x17,
@@ -636,14 +610,11 @@ static const struct adsp_data sm8250_cdsp_resource = {
 	.pas_id = 18,
 	.has_aggre2_clk = false,
 	.auto_boot = true,
-	.active_pd_names = (char*[]){
-		"load_state",
-		NULL
-	},
 	.proxy_pd_names = (char*[]){
 		"cx",
 		NULL
 	},
+	.load_state = "cdsp",
 	.ssr_name = "cdsp",
 	.sysmon_name = "cdsp",
 	.ssctl_id = 0x17,
@@ -655,15 +626,12 @@ static const struct adsp_data sm8350_cdsp_resource = {
 	.pas_id = 18,
 	.has_aggre2_clk = false,
 	.auto_boot = true,
-	.active_pd_names = (char*[]){
-		"load_state",
-		NULL
-	},
 	.proxy_pd_names = (char*[]){
 		"cx",
 		"mxc",
 		NULL
 	},
+	.load_state = "cdsp",
 	.ssr_name = "cdsp",
 	.sysmon_name = "cdsp",
 	.ssctl_id = 0x17,
@@ -676,15 +644,12 @@ static const struct adsp_data mpss_resource_init = {
 	.minidump_id = 3,
 	.has_aggre2_clk = false,
 	.auto_boot = false,
-	.active_pd_names = (char*[]){
-		"load_state",
-		NULL
-	},
 	.proxy_pd_names = (char*[]){
 		"cx",
 		"mss",
 		NULL
 	},
+	.load_state = "modem",
 	.ssr_name = "mpss",
 	.sysmon_name = "modem",
 	.ssctl_id = 0x12,
@@ -707,15 +672,12 @@ static const struct adsp_data sm8150_slpi_resource = {
 		.pas_id = 12,
 		.has_aggre2_clk = false,
 		.auto_boot = true,
-		.active_pd_names = (char*[]){
-			"load_state",
-			NULL
-		},
 		.proxy_pd_names = (char*[]){
 			"lcx",
 			"lmx",
 			NULL
 		},
+		.load_state = "slpi",
 		.ssr_name = "dsps",
 		.sysmon_name = "slpi",
 		.ssctl_id = 0x16,
@@ -727,15 +689,12 @@ static const struct adsp_data sm8250_slpi_resource = {
 	.pas_id = 12,
 	.has_aggre2_clk = false,
 	.auto_boot = true,
-	.active_pd_names = (char*[]){
-		"load_state",
-		NULL
-	},
 	.proxy_pd_names = (char*[]){
 		"lcx",
 		"lmx",
 		NULL
 	},
+	.load_state = "slpi",
 	.ssr_name = "dsps",
 	.sysmon_name = "slpi",
 	.ssctl_id = 0x16,
@@ -747,15 +706,12 @@ static const struct adsp_data sm8350_slpi_resource = {
 	.pas_id = 12,
 	.has_aggre2_clk = false,
 	.auto_boot = true,
-	.active_pd_names = (char*[]){
-		"load_state",
-		NULL
-	},
 	.proxy_pd_names = (char*[]){
 		"lcx",
 		"lmx",
 		NULL
 	},
+	.load_state = "slpi",
 	.ssr_name = "dsps",
 	.sysmon_name = "slpi",
 	.ssctl_id = 0x16,
diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c b/drivers/remoteproc/qcom_q6v5_wcss.c
index 20d50ec7eff1..247251e081d4 100644
--- a/drivers/remoteproc/qcom_q6v5_wcss.c
+++ b/drivers/remoteproc/qcom_q6v5_wcss.c
@@ -1044,8 +1044,7 @@ static int q6v5_wcss_probe(struct platform_device *pdev)
 	if (ret)
 		goto free_rproc;
 
-	ret = qcom_q6v5_init(&wcss->q6v5, pdev, rproc, desc->crash_reason_smem,
-			     NULL);
+	ret = qcom_q6v5_init(&wcss->q6v5, pdev, rproc, desc->crash_reason_smem, NULL, NULL);
 	if (ret)
 		goto free_rproc;
 
@@ -1075,6 +1074,7 @@ static int q6v5_wcss_remove(struct platform_device *pdev)
 {
 	struct rproc *rproc = platform_get_drvdata(pdev);
 
+	qcom_q6v5_deinit(&qproc->q6v5, pdev);
 	rproc_del(rproc);
 	rproc_free(rproc);
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 05/13] arm64: dts: qcom: sc7180: Use QMP binding to control load state
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
                   ` (3 preceding siblings ...)
  2021-06-24 18:51 ` [PATCH v3 04/13] remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state Sibi Sankar
@ 2021-06-24 18:51 ` Sibi Sankar
  2021-06-25 21:35   ` Matthias Kaehlcke
  2021-06-24 18:52 ` [PATCH v3 06/13] arm64: dts: qcom: sc7280: " Sibi Sankar
                   ` (7 subsequent siblings)
  12 siblings, 1 reply; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:51 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

Use the Qualcomm Mailbox Protocol (QMP) binding to control the load
state resources on SC7180 SoCs and drop deprecated power-domains exposed
by AOSS QMP node.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sc7180.dtsi | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index a5d58eb92896..d3e5b67afcb4 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -15,7 +15,6 @@
 #include <dt-bindings/interconnect/qcom,sc7180.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/phy/phy-qcom-qusb2.h>
-#include <dt-bindings/power/qcom-aoss-qmp.h>
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/reset/qcom,sdm845-aoss.h>
 #include <dt-bindings/reset/qcom,sdm845-pdc.h>
@@ -1893,14 +1892,15 @@
 			clock-names = "iface", "bus", "nav", "snoc_axi",
 				      "mnoc_axi", "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_MODEM>,
-					<&rpmhpd SC7180_CX>,
+			power-domains = <&rpmhpd SC7180_CX>,
 					<&rpmhpd SC7180_MX>,
 					<&rpmhpd SC7180_MSS>;
-			power-domain-names = "load_state", "cx", "mx", "mss";
+			power-domain-names = "cx", "mx", "mss";
 
 			memory-region = <&mpss_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&modem_smp2p_out 0>;
 			qcom,smem-state-names = "stop";
 
@@ -3116,7 +3116,6 @@
 			mboxes = <&apss_shared 0>;
 
 			#clock-cells = <0>;
-			#power-domain-cells = <1>;
 		};
 
 		spmi_bus: spmi@c440000 {
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 06/13] arm64: dts: qcom: sc7280: Use QMP binding to control load state
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
                   ` (4 preceding siblings ...)
  2021-06-24 18:51 ` [PATCH v3 05/13] arm64: dts: qcom: sc7180: Use QMP binding to control " Sibi Sankar
@ 2021-06-24 18:52 ` Sibi Sankar
  2021-06-24 18:52 ` [PATCH v3 07/13] arm64: dts: qcom: sdm845: " Sibi Sankar
                   ` (6 subsequent siblings)
  12 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:52 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

Use the Qualcomm Mailbox Protocol (QMP) binding to control the load
state resources on SC7280 SoCs and drop deprecated power-domains exposed
by AOSS QMP node.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index a8c274ad74c4..d1adf64e21e9 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -9,7 +9,6 @@
 #include <dt-bindings/clock/qcom,rpmh.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/mailbox/qcom-ipcc.h>
-#include <dt-bindings/power/qcom-aoss-qmp.h>
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/reset/qcom,sdm845-aoss.h>
 #include <dt-bindings/reset/qcom,sdm845-pdc.h>
@@ -1149,7 +1148,6 @@
 					IPCC_MPROC_SIGNAL_GLINK_QMP>;
 
 			#clock-cells = <0>;
-			#power-domain-cells = <1>;
 		};
 
 		spmi_bus: spmi@c440000 {
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 07/13] arm64: dts: qcom: sdm845: Use QMP binding to control load state
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
                   ` (5 preceding siblings ...)
  2021-06-24 18:52 ` [PATCH v3 06/13] arm64: dts: qcom: sc7280: " Sibi Sankar
@ 2021-06-24 18:52 ` Sibi Sankar
  2021-06-24 18:52 ` [PATCH v3 08/13] arm64: dts: qcom: sm8150: " Sibi Sankar
                   ` (5 subsequent siblings)
  12 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:52 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

Use the Qualcomm Mailbox Protocol (QMP) binding to control the load
state resources on SDM845 SoCs and drop deprecated power-domains exposed
by AOSS QMP node.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 1796ae8372be..8c3601810fb2 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -2984,6 +2984,8 @@
 			clock-names = "iface", "bus", "mem", "gpll0_mss",
 				      "snoc_axi", "mnoc_axi", "prng", "xo";
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&modem_smp2p_out 0>;
 			qcom,smem-state-names = "stop";
 
@@ -2993,11 +2995,10 @@
 
 			qcom,halt-regs = <&tcsr_mutex_regs 0x23000 0x25000 0x24000>;
 
-			power-domains = <&aoss_qmp 2>,
-					<&rpmhpd SDM845_CX>,
+			power-domains = <&rpmhpd SDM845_CX>,
 					<&rpmhpd SDM845_MX>,
 					<&rpmhpd SDM845_MSS>;
-			power-domain-names = "load_state", "cx", "mx", "mss";
+			power-domain-names = "cx", "mx", "mss";
 
 			mba {
 				memory-region = <&mba_region>;
@@ -4582,7 +4583,6 @@
 			mboxes = <&apss_shared 0>;
 
 			#clock-cells = <0>;
-			#power-domain-cells = <1>;
 
 			cx_cdev: cx {
 				#cooling-cells = <2>;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 08/13] arm64: dts: qcom: sm8150: Use QMP binding to control load state
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
                   ` (6 preceding siblings ...)
  2021-06-24 18:52 ` [PATCH v3 07/13] arm64: dts: qcom: sdm845: " Sibi Sankar
@ 2021-06-24 18:52 ` Sibi Sankar
  2021-06-24 18:52 ` [PATCH v3 09/13] arm64: dts: qcom: sm8250: " Sibi Sankar
                   ` (4 subsequent siblings)
  12 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:52 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

Use the Qualcomm Mailbox Protocol (QMP) binding to control the load
state resources on SM8150 SoCs and drop deprecated power-domains exposed
by AOSS QMP node.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sm8150.dtsi | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8150.dtsi b/arch/arm64/boot/dts/qcom/sm8150.dtsi
index 612dda0fef43..7a040b74ef5a 100644
--- a/arch/arm64/boot/dts/qcom/sm8150.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8150.dtsi
@@ -6,7 +6,6 @@
 
 #include <dt-bindings/dma/qcom-gpi.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
-#include <dt-bindings/power/qcom-aoss-qmp.h>
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/soc/qcom,rpmh-rsc.h>
 #include <dt-bindings/clock/qcom,rpmh.h>
@@ -1110,13 +1109,14 @@
 			clocks = <&rpmhcc RPMH_CXO_CLK>;
 			clock-names = "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_SLPI>,
-					<&rpmhpd 3>,
+			power-domains = <&rpmhpd 3>,
 					<&rpmhpd 2>;
-			power-domain-names = "load_state", "lcx", "lmx";
+			power-domain-names = "lcx", "lmx";
 
 			memory-region = <&slpi_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&slpi_smp2p_out 0>;
 			qcom,smem-state-names = "stop";
 
@@ -1560,13 +1560,14 @@
 			clocks = <&rpmhcc RPMH_CXO_CLK>;
 			clock-names = "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_MODEM>,
-					<&rpmhpd 7>,
+			power-domains = <&rpmhpd 7>,
 					<&rpmhpd 0>;
-			power-domain-names = "load_state", "cx", "mss";
+			power-domain-names = "cx", "mss";
 
 			memory-region = <&mpss_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&modem_smp2p_out 0>;
 			qcom,smem-state-names = "stop";
 
@@ -2186,12 +2187,12 @@
 			clocks = <&rpmhcc RPMH_CXO_CLK>;
 			clock-names = "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_CDSP>,
-					<&rpmhpd 7>;
-			power-domain-names = "load_state", "cx";
+			power-domains = <&rpmhpd 7>;
 
 			memory-region = <&cdsp_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&cdsp_smp2p_out 0>;
 			qcom,smem-state-names = "stop";
 
@@ -2415,7 +2416,6 @@
 			mboxes = <&apss_shared 0>;
 
 			#clock-cells = <0>;
-			#power-domain-cells = <1>;
 		};
 
 		tsens0: thermal-sensor@c263000 {
@@ -2562,12 +2562,12 @@
 			clocks = <&rpmhcc RPMH_CXO_CLK>;
 			clock-names = "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_LPASS>,
-					<&rpmhpd 7>;
-			power-domain-names = "load_state", "cx";
+			power-domains = <&rpmhpd 7>;
 
 			memory-region = <&adsp_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&adsp_smp2p_out 0>;
 			qcom,smem-state-names = "stop";
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 09/13] arm64: dts: qcom: sm8250: Use QMP binding to control load state
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
                   ` (7 preceding siblings ...)
  2021-06-24 18:52 ` [PATCH v3 08/13] arm64: dts: qcom: sm8150: " Sibi Sankar
@ 2021-06-24 18:52 ` Sibi Sankar
  2021-06-24 18:52 ` [PATCH v3 10/13] arm64: dts: qcom: sm8350: " Sibi Sankar
                   ` (3 subsequent siblings)
  12 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:52 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

Use the Qualcomm Mailbox Protocol (QMP) binding to control the load
state resources on SM8250 SoCs and drop deprecated power-domains exposed
by AOSS QMP node.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 4798368b02ef..535b488575f1 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -13,7 +13,6 @@
 #include <dt-bindings/interconnect/qcom,osm-l3.h>
 #include <dt-bindings/interconnect/qcom,sm8250.h>
 #include <dt-bindings/mailbox/qcom-ipcc.h>
-#include <dt-bindings/power/qcom-aoss-qmp.h>
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/soc/qcom,apr.h>
 #include <dt-bindings/soc/qcom,rpmh-rsc.h>
@@ -1968,13 +1967,14 @@
 			clocks = <&rpmhcc RPMH_CXO_CLK>;
 			clock-names = "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_SLPI>,
-					<&rpmhpd SM8250_LCX>,
+			power-domains = <&rpmhpd SM8250_LCX>,
 					<&rpmhpd SM8250_LMX>;
-			power-domain-names = "load_state", "lcx", "lmx";
+			power-domain-names = "lcx", "lmx";
 
 			memory-region = <&slpi_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&smp2p_slpi_out 0>;
 			qcom,smem-state-names = "stop";
 
@@ -2034,12 +2034,12 @@
 			clocks = <&rpmhcc RPMH_CXO_CLK>;
 			clock-names = "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_CDSP>,
-					<&rpmhpd SM8250_CX>;
-			power-domain-names = "load_state", "cx";
+			power-domains = <&rpmhpd SM8250_CX>;
 
 			memory-region = <&cdsp_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&smp2p_cdsp_out 0>;
 			qcom,smem-state-names = "stop";
 
@@ -2782,7 +2782,6 @@
 					IPCC_MPROC_SIGNAL_GLINK_QMP>;
 
 			#clock-cells = <0>;
-			#power-domain-cells = <1>;
 		};
 
 		spmi_bus: spmi@c440000 {
@@ -3699,13 +3698,14 @@
 			clocks = <&rpmhcc RPMH_CXO_CLK>;
 			clock-names = "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_LPASS>,
-					<&rpmhpd SM8250_LCX>,
+			power-domains = <&rpmhpd SM8250_LCX>,
 					<&rpmhpd SM8250_LMX>;
-			power-domain-names = "load_state", "lcx", "lmx";
+			power-domain-names = "lcx", "lmx";
 
 			memory-region = <&adsp_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&smp2p_adsp_out 0>;
 			qcom,smem-state-names = "stop";
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 10/13] arm64: dts: qcom: sm8350: Use QMP binding to control load state
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
                   ` (8 preceding siblings ...)
  2021-06-24 18:52 ` [PATCH v3 09/13] arm64: dts: qcom: sm8250: " Sibi Sankar
@ 2021-06-24 18:52 ` Sibi Sankar
  2021-06-24 18:52 ` [PATCH v3 11/13] soc: qcom: aoss: Drop power domain support Sibi Sankar
                   ` (2 subsequent siblings)
  12 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:52 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

Use the Qualcomm Mailbox Protocol (QMP) binding to control the load
state resources on SM8350 SoCs and drop deprecated power-domains exposed
by AOSS QMP node.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sm8350.dtsi | 30 ++++++++++++++++--------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi
index 0d16392bb976..2d78a55f33c2 100644
--- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
@@ -8,7 +8,6 @@
 #include <dt-bindings/clock/qcom,rpmh.h>
 #include <dt-bindings/interconnect/qcom,sm8350.h>
 #include <dt-bindings/mailbox/qcom-ipcc.h>
-#include <dt-bindings/power/qcom-aoss-qmp.h>
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/soc/qcom,rpmh-rsc.h>
 #include <dt-bindings/thermal/thermal.h>
@@ -703,15 +702,16 @@
 			clocks = <&rpmhcc RPMH_CXO_CLK>;
 			clock-names = "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_MODEM>,
-					<&rpmhpd 0>,
+			power-domains = <&rpmhpd 0>,
 					<&rpmhpd 12>;
-			power-domain-names = "load_state", "cx", "mss";
+			power-domain-names = "cx", "mss";
 
 			interconnects = <&mc_virt MASTER_LLCC &mc_virt SLAVE_EBI1>;
 
 			memory-region = <&pil_modem_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&smp2p_modem_out 0>;
 			qcom,smem-state-names = "stop";
 
@@ -771,7 +771,6 @@
 			mboxes = <&ipcc IPCC_CLIENT_AOP IPCC_MPROC_SIGNAL_GLINK_QMP>;
 
 			#clock-cells = <0>;
-			#power-domain-cells = <1>;
 		};
 
 		spmi_bus: spmi@c440000 {
@@ -1070,13 +1069,14 @@
 			clocks = <&rpmhcc RPMH_CXO_CLK>;
 			clock-names = "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_SLPI>,
-					<&rpmhpd 4>,
+			power-domains = <&rpmhpd 4>,
 					<&rpmhpd 5>;
-			power-domain-names = "load_state", "lcx", "lmx";
+			power-domain-names = "lcx", "lmx";
 
 			memory-region = <&pil_slpi_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&smp2p_slpi_out 0>;
 			qcom,smem-state-names = "stop";
 
@@ -1110,15 +1110,16 @@
 			clocks = <&rpmhcc RPMH_CXO_CLK>;
 			clock-names = "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_CDSP>,
-					<&rpmhpd 0>,
+			power-domains = <&rpmhpd 0>,
 					<&rpmhpd 10>;
-			power-domain-names = "load_state", "cx", "mxc";
+			power-domain-names = "cx", "mxc";
 
 			interconnects = <&compute_noc MASTER_CDSP_PROC &mc_virt SLAVE_EBI1>;
 
 			memory-region = <&pil_cdsp_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&smp2p_cdsp_out 0>;
 			qcom,smem-state-names = "stop";
 
@@ -1344,13 +1345,14 @@
 			clocks = <&rpmhcc RPMH_CXO_CLK>;
 			clock-names = "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_LPASS>,
-					<&rpmhpd 4>,
+			power-domains = <&rpmhpd 4>,
 					<&rpmhpd 5>;
-			power-domain-names = "load_state", "lcx", "lmx";
+			power-domain-names = "lcx", "lmx";
 
 			memory-region = <&pil_adsp_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&smp2p_adsp_out 0>;
 			qcom,smem-state-names = "stop";
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 11/13] soc: qcom: aoss: Drop power domain support
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
                   ` (9 preceding siblings ...)
  2021-06-24 18:52 ` [PATCH v3 10/13] arm64: dts: qcom: sm8350: " Sibi Sankar
@ 2021-06-24 18:52 ` Sibi Sankar
  2021-06-25 22:01   ` Matthias Kaehlcke
  2021-06-24 18:52 ` [PATCH v3 12/13] dt-bindings: msm/dp: Remove aoss-qmp header Sibi Sankar
  2021-06-24 18:52 ` [PATCH v3 13/13] dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions Sibi Sankar
  12 siblings, 1 reply; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:52 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

The load state resources are expected to follow the life cycle of the
remote processor it tracks. However, modeling load state resources as
power-domains result in them getting turned off during system suspend
and thereby falling out of sync with the remote processors that are still
on. Fix this by replacing load state resource control through the generic
qmp message send interface instead.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
---
 drivers/soc/qcom/qcom_aoss.c | 109 ++-----------------------------------------
 1 file changed, 3 insertions(+), 106 deletions(-)

diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c
index 998ee7605eb2..f0c3726e8c46 100644
--- a/drivers/soc/qcom/qcom_aoss.c
+++ b/drivers/soc/qcom/qcom_aoss.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (c) 2019, Linaro Ltd
  */
-#include <dt-bindings/power/qcom-aoss-qmp.h>
 #include <linux/clk-provider.h>
 #include <linux/debugfs.h>
 #include <linux/interrupt.h>
@@ -11,7 +10,6 @@
 #include <linux/module.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
-#include <linux/pm_domain.h>
 #include <linux/thermal.h>
 #include <linux/slab.h>
 #include <linux/soc/qcom/qcom_aoss.h>
@@ -68,7 +66,6 @@ struct qmp_cooling_device {
  * @event: wait_queue for synchronization with the IRQ
  * @tx_lock: provides synchronization between multiple callers of qmp_send()
  * @qdss_clk: QDSS clock hw struct
- * @pd_data: genpd data
  * @cooling_devs: thermal cooling devices
  */
 struct qmp {
@@ -88,20 +85,12 @@ struct qmp {
 	struct mutex tx_lock;
 
 	struct clk_hw qdss_clk;
-	struct genpd_onecell_data pd_data;
 	struct qmp_cooling_device *cooling_devs;
 #if IS_ENABLED(CONFIG_DEBUG_FS)
 	struct dentry *debugfs_file;
 #endif /* CONFIG_DEBUG_FS */
 };
 
-struct qmp_pd {
-	struct qmp *qmp;
-	struct generic_pm_domain pd;
-};
-
-#define to_qmp_pd_resource(res) container_of(res, struct qmp_pd, pd)
-
 static void qmp_kick(struct qmp *qmp)
 {
 	mbox_send_message(qmp->mbox_chan, NULL);
@@ -330,95 +319,6 @@ static void qmp_qdss_clk_remove(struct qmp *qmp)
 	clk_hw_unregister(&qmp->qdss_clk);
 }
 
-static int qmp_pd_power_toggle(struct qmp_pd *res, bool enable)
-{
-	char buf[QMP_MSG_LEN] = {};
-
-	snprintf(buf, sizeof(buf),
-		 "{class: image, res: load_state, name: %s, val: %s}",
-		 res->pd.name, enable ? "on" : "off");
-	return qmp_send(res->qmp, buf, sizeof(buf));
-}
-
-static int qmp_pd_power_on(struct generic_pm_domain *domain)
-{
-	return qmp_pd_power_toggle(to_qmp_pd_resource(domain), true);
-}
-
-static int qmp_pd_power_off(struct generic_pm_domain *domain)
-{
-	return qmp_pd_power_toggle(to_qmp_pd_resource(domain), false);
-}
-
-static const char * const sdm845_resources[] = {
-	[AOSS_QMP_LS_CDSP] = "cdsp",
-	[AOSS_QMP_LS_LPASS] = "adsp",
-	[AOSS_QMP_LS_MODEM] = "modem",
-	[AOSS_QMP_LS_SLPI] = "slpi",
-	[AOSS_QMP_LS_SPSS] = "spss",
-	[AOSS_QMP_LS_VENUS] = "venus",
-};
-
-static int qmp_pd_add(struct qmp *qmp)
-{
-	struct genpd_onecell_data *data = &qmp->pd_data;
-	struct device *dev = qmp->dev;
-	struct qmp_pd *res;
-	size_t num = ARRAY_SIZE(sdm845_resources);
-	int ret;
-	int i;
-
-	res = devm_kcalloc(dev, num, sizeof(*res), GFP_KERNEL);
-	if (!res)
-		return -ENOMEM;
-
-	data->domains = devm_kcalloc(dev, num, sizeof(*data->domains),
-				     GFP_KERNEL);
-	if (!data->domains)
-		return -ENOMEM;
-
-	for (i = 0; i < num; i++) {
-		res[i].qmp = qmp;
-		res[i].pd.name = sdm845_resources[i];
-		res[i].pd.power_on = qmp_pd_power_on;
-		res[i].pd.power_off = qmp_pd_power_off;
-
-		ret = pm_genpd_init(&res[i].pd, NULL, true);
-		if (ret < 0) {
-			dev_err(dev, "failed to init genpd\n");
-			goto unroll_genpds;
-		}
-
-		data->domains[i] = &res[i].pd;
-	}
-
-	data->num_domains = i;
-
-	ret = of_genpd_add_provider_onecell(dev->of_node, data);
-	if (ret < 0)
-		goto unroll_genpds;
-
-	return 0;
-
-unroll_genpds:
-	for (i--; i >= 0; i--)
-		pm_genpd_remove(data->domains[i]);
-
-	return ret;
-}
-
-static void qmp_pd_remove(struct qmp *qmp)
-{
-	struct genpd_onecell_data *data = &qmp->pd_data;
-	struct device *dev = qmp->dev;
-	int i;
-
-	of_genpd_del_provider(dev->of_node);
-
-	for (i = 0; i < data->num_domains; i++)
-		pm_genpd_remove(data->domains[i]);
-}
-
 static int qmp_cdev_get_max_state(struct thermal_cooling_device *cdev,
 				  unsigned long *state)
 {
@@ -650,13 +550,11 @@ static int qmp_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_close_qmp;
 
-	ret = qmp_pd_add(qmp);
-	if (ret)
-		goto err_remove_qdss_clk;
-
 	ret = qmp_cooling_devices_register(qmp);
-	if (ret)
+	if (ret) {
 		dev_err(&pdev->dev, "failed to register aoss cooling devices\n");
+		goto err_remove_qdss_clk;
+	}
 
 	platform_set_drvdata(pdev, qmp);
 
@@ -689,7 +587,6 @@ static int qmp_remove(struct platform_device *pdev)
 #endif /* CONFIG_DEBUG_FS */
 
 	qmp_qdss_clk_remove(qmp);
-	qmp_pd_remove(qmp);
 	qmp_cooling_devices_remove(qmp);
 
 	qmp_close(qmp);
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 12/13] dt-bindings: msm/dp: Remove aoss-qmp header
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
                   ` (10 preceding siblings ...)
  2021-06-24 18:52 ` [PATCH v3 11/13] soc: qcom: aoss: Drop power domain support Sibi Sankar
@ 2021-06-24 18:52 ` Sibi Sankar
  2021-06-24 18:52 ` [PATCH v3 13/13] dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions Sibi Sankar
  12 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:52 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

Remove the unused aoss-qmp header from the list of includes.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/display/msm/dp-controller.yaml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index 64d8d9e5e47a..d89b3c510c27 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -95,7 +95,6 @@ examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
-    #include <dt-bindings/power/qcom-aoss-qmp.h>
     #include <dt-bindings/power/qcom-rpmpd.h>
 
     displayport-controller@ae90000 {
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* [PATCH v3 13/13] dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions
  2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
                   ` (11 preceding siblings ...)
  2021-06-24 18:52 ` [PATCH v3 12/13] dt-bindings: msm/dp: Remove aoss-qmp header Sibi Sankar
@ 2021-06-24 18:52 ` Sibi Sankar
  2021-06-25 22:16   ` Matthias Kaehlcke
  12 siblings, 1 reply; 27+ messages in thread
From: Sibi Sankar @ 2021-06-24 18:52 UTC (permalink / raw)
  To: bjorn.andersson, robh+dt, swboyd
  Cc: ulf.hansson, rjw, agross, ohad, mathieu.poirier, linux-arm-msm,
	linux-remoteproc, devicetree, linux-kernel, dianders, rishabhb,
	sidgup, Sibi Sankar

Delete unused power-domain definitions exposed by AOSS QMP.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
---
 include/dt-bindings/power/qcom-aoss-qmp.h | 14 --------------
 1 file changed, 14 deletions(-)
 delete mode 100644 include/dt-bindings/power/qcom-aoss-qmp.h

diff --git a/include/dt-bindings/power/qcom-aoss-qmp.h b/include/dt-bindings/power/qcom-aoss-qmp.h
deleted file mode 100644
index ec336d31dee4..000000000000
--- a/include/dt-bindings/power/qcom-aoss-qmp.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (c) 2018, Linaro Ltd. */
-
-#ifndef __DT_BINDINGS_POWER_QCOM_AOSS_QMP_H
-#define __DT_BINDINGS_POWER_QCOM_AOSS_QMP_H
-
-#define AOSS_QMP_LS_CDSP		0
-#define AOSS_QMP_LS_LPASS	1
-#define AOSS_QMP_LS_MODEM	2
-#define AOSS_QMP_LS_SLPI		3
-#define AOSS_QMP_LS_SPSS		4
-#define AOSS_QMP_LS_VENUS	5
-
-#endif
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 04/13] remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state
  2021-06-24 18:51 ` [PATCH v3 04/13] remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state Sibi Sankar
@ 2021-06-25 21:11   ` Matthias Kaehlcke
  2021-06-30 19:31     ` Sibi Sankar
  0 siblings, 1 reply; 27+ messages in thread
From: Matthias Kaehlcke @ 2021-06-25 21:11 UTC (permalink / raw)
  To: Sibi Sankar
  Cc: bjorn.andersson, robh+dt, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

On Fri, Jun 25, 2021 at 12:21:58AM +0530, Sibi Sankar wrote:
> The power domains exposed by the AOSS QMP driver control the load state
> resources linked to modem, adsp, cdsp remoteprocs. These are used to
> notify the Always on Subsystem (AOSS) that a particular co-processor is
> up/down. AOSS uses this information to wait for the co-processors to
> suspend before starting its sleep sequence.
> 
> These co-processors enter low-power modes independent to that of the
> application processor and the load state resources linked to them are
> expected to remain unaltered across system suspend/resume cycles. To
> achieve this behavior lets stop using the power-domains exposed by the
> AOSS QMP node and replace them with generic qmp_send interface instead.
> 
> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> ---
>  drivers/remoteproc/qcom_q6v5.c      | 56 +++++++++++++++++++++++++-
>  drivers/remoteproc/qcom_q6v5.h      |  7 +++-
>  drivers/remoteproc/qcom_q6v5_adsp.c |  7 +++-
>  drivers/remoteproc/qcom_q6v5_mss.c  | 44 ++++----------------
>  drivers/remoteproc/qcom_q6v5_pas.c  | 80 +++++++++----------------------------
>  drivers/remoteproc/qcom_q6v5_wcss.c |  4 +-
>  6 files changed, 94 insertions(+), 104 deletions(-)
> 
> diff --git a/drivers/remoteproc/qcom_q6v5.c b/drivers/remoteproc/qcom_q6v5.c
> index 9627a950928e..4a9a481c211b 100644
> --- a/drivers/remoteproc/qcom_q6v5.c
> +++ b/drivers/remoteproc/qcom_q6v5.c
> @@ -16,8 +16,28 @@
>  #include "qcom_common.h"
>  #include "qcom_q6v5.h"
>  
> +#define Q6V5_LOAD_STATE_MSG_LEN	64
>  #define Q6V5_PANIC_DELAY_MS	200
>  
> +static int q6v5_load_state_toggle(struct qcom_q6v5 *q6v5, bool enable)
> +{
> +	char buf[Q6V5_LOAD_STATE_MSG_LEN] = {};
> +	int ret;
> +
> +	if (IS_ERR(q6v5->qmp))
> +		return 0;
> +
> +	snprintf(buf, sizeof(buf),
> +		 "{class: image, res: load_state, name: %s, val: %s}",
> +		 q6v5->load_state, enable ? "on" : "off");
> +
> +	ret = qmp_send(q6v5->qmp, buf, sizeof(buf));
> +	if (ret)
> +		dev_err(q6v5->dev, "failed to toggle load state\n");
> +
> +	return ret;
> +}
> +
>  /**
>   * qcom_q6v5_prepare() - reinitialize the qcom_q6v5 context before start
>   * @q6v5:	reference to qcom_q6v5 context to be reinitialized
> @@ -26,6 +46,12 @@
>   */
>  int qcom_q6v5_prepare(struct qcom_q6v5 *q6v5)
>  {
> +	int ret;
> +
> +	ret = q6v5_load_state_toggle(q6v5, true);
> +	if (ret)
> +		return ret;
> +
>  	reinit_completion(&q6v5->start_done);
>  	reinit_completion(&q6v5->stop_done);
>  
> @@ -47,6 +73,7 @@ EXPORT_SYMBOL_GPL(qcom_q6v5_prepare);
>  int qcom_q6v5_unprepare(struct qcom_q6v5 *q6v5)
>  {
>  	disable_irq(q6v5->handover_irq);
> +	q6v5_load_state_toggle(q6v5, false);
>  
>  	return !q6v5->handover_issued;
>  }
> @@ -196,12 +223,13 @@ EXPORT_SYMBOL_GPL(qcom_q6v5_panic);
>   * @pdev:	platform_device reference for acquiring resources
>   * @rproc:	associated remoteproc instance
>   * @crash_reason: SMEM id for crash reason string, or 0 if none
> + * @load_state: load state resource string
>   * @handover:	function to be called when proxy resources should be released
>   *
>   * Return: 0 on success, negative errno on failure
>   */
>  int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device *pdev,
> -		   struct rproc *rproc, int crash_reason,
> +		   struct rproc *rproc, int crash_reason, const char *load_state,
>  		   void (*handover)(struct qcom_q6v5 *q6v5))
>  {
>  	int ret;
> @@ -210,6 +238,7 @@ int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device *pdev,
>  	q6v5->dev = &pdev->dev;
>  	q6v5->crash_reason = crash_reason;
>  	q6v5->handover = handover;
> +	q6v5->load_state = kstrdup_const(load_state, GFP_KERNEL);
>  
>  	init_completion(&q6v5->start_done);
>  	init_completion(&q6v5->stop_done);
> @@ -286,9 +315,34 @@ int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device *pdev,
>  		return PTR_ERR(q6v5->state);
>  	}
>  
> +	q6v5->qmp = qmp_get(&pdev->dev);
> +	if (IS_ERR(q6v5->qmp)) {
> +		if (PTR_ERR(q6v5->qmp) != -ENODEV) {
> +			if (PTR_ERR(q6v5->qmp) != -EPROBE_DEFER)
> +				dev_err(&pdev->dev, "failed to acquire load state\n");
> +			return PTR_ERR(q6v5->qmp);
> +		}
> +	} else {
> +		if (!q6v5->load_state) {
> +			dev_err(&pdev->dev, "load state resource string empty\n");
> +			return -EINVAL;
> +		}
> +	}
> +
>  	return 0;
>  }
>  EXPORT_SYMBOL_GPL(qcom_q6v5_init);
>  
> +/**
> + * qcom_q6v5_deinit() - deinitialize the q6v5 common struct
> + * @q6v5:	reference to qcom_q6v5 context to be deinitialized
> + * @pdev:	platform_device reference for acquiring resources
> + */
> +void qcom_q6v5_deinit(struct qcom_q6v5 *q6v5, struct platform_device *pdev)
> +{

pdev isn't used, remove it?

	kfree_const(q6v5->load_state);

> +	qmp_put(q6v5->qmp);
> +}
> +EXPORT_SYMBOL_GPL(qcom_q6v5_deinit);
> +
>  MODULE_LICENSE("GPL v2");
>  MODULE_DESCRIPTION("Qualcomm Peripheral Image Loader for Q6V5");
> diff --git a/drivers/remoteproc/qcom_q6v5.h b/drivers/remoteproc/qcom_q6v5.h
> index 1c212f670cbc..3d9f525cb4ec 100644
> --- a/drivers/remoteproc/qcom_q6v5.h
> +++ b/drivers/remoteproc/qcom_q6v5.h
> @@ -5,6 +5,7 @@
>  
>  #include <linux/kernel.h>
>  #include <linux/completion.h>
> +#include <linux/soc/qcom/qcom_aoss.h>
>  
>  struct rproc;
>  struct qcom_smem_state;
> @@ -15,6 +16,8 @@ struct qcom_q6v5 {
>  	struct rproc *rproc;
>  
>  	struct qcom_smem_state *state;
> +	struct qmp *qmp;
> +
>  	unsigned stop_bit;
>  
>  	int wdog_irq;
> @@ -32,12 +35,14 @@ struct qcom_q6v5 {
>  
>  	bool running;
>  
> +	const char *load_state;
>  	void (*handover)(struct qcom_q6v5 *q6v5);
>  };
>  
>  int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device *pdev,
> -		   struct rproc *rproc, int crash_reason,
> +		   struct rproc *rproc, int crash_reason, const char *load_state,
>  		   void (*handover)(struct qcom_q6v5 *q6v5));
> +void qcom_q6v5_deinit(struct qcom_q6v5 *q6v5, struct platform_device *pdev);
>  
>  int qcom_q6v5_prepare(struct qcom_q6v5 *q6v5);
>  int qcom_q6v5_unprepare(struct qcom_q6v5 *q6v5);
> diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
> index 8b0d8bbacd2e..0f5e0fd216b4 100644
> --- a/drivers/remoteproc/qcom_q6v5_adsp.c
> +++ b/drivers/remoteproc/qcom_q6v5_adsp.c
> @@ -185,7 +185,9 @@ static int adsp_start(struct rproc *rproc)
>  	int ret;
>  	unsigned int val;
>  
> -	qcom_q6v5_prepare(&adsp->q6v5);
> +	ret = qcom_q6v5_prepare(&adsp->q6v5);
> +	if (ret)
> +		return ret;
>  
>  	ret = clk_prepare_enable(adsp->xo);
>  	if (ret)
> @@ -465,7 +467,7 @@ static int adsp_probe(struct platform_device *pdev)
>  	if (ret)
>  		goto disable_pm;
>  
> -	ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem,
> +	ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem, NULL,
>  			     qcom_adsp_pil_handover);

Doesn't passing a load_state of NULL cause qcom_q6v5_init() to fail with -EINVAL?

> --- a/drivers/remoteproc/qcom_q6v5_wcss.c
> +++ b/drivers/remoteproc/qcom_q6v5_wcss.c
> @@ -1044,8 +1044,7 @@ static int q6v5_wcss_probe(struct platform_device *pdev)
>  	if (ret)
>  		goto free_rproc;
>  
> -	ret = qcom_q6v5_init(&wcss->q6v5, pdev, rproc, desc->crash_reason_smem,
> -			     NULL);
> +	ret = qcom_q6v5_init(&wcss->q6v5, pdev, rproc, desc->crash_reason_smem, NULL, NULL);

Same as for adsp_probe(), doesn't a load_state of NULL cause _init() to fail?

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings
  2021-06-24 18:51 ` [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings Sibi Sankar
@ 2021-06-25 21:19   ` Matthias Kaehlcke
  2021-06-30 19:51     ` Sibi Sankar
  2021-07-14 19:34   ` Rob Herring
  2021-07-19 19:44   ` Bjorn Andersson
  2 siblings, 1 reply; 27+ messages in thread
From: Matthias Kaehlcke @ 2021-06-25 21:19 UTC (permalink / raw)
  To: Sibi Sankar
  Cc: bjorn.andersson, robh+dt, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

On Fri, Jun 25, 2021 at 12:21:56AM +0530, Sibi Sankar wrote:

> Subject: dt-bindings: remoteproc: qcom: pas: Add QMP bindings

nit: does this really add a QMP binding (as in
Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt) or
rather a QMP property/phandle to the ADSP binding?

> Add Qualcomm Mailbox Protocol (QMP) binding to replace the power domains

same nit

> exposed by the AOSS QMP node.
> 
> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 01/13] dt-bindings: soc: qcom: aoss: Drop power-domain bindings
  2021-06-24 18:51 ` [PATCH v3 01/13] dt-bindings: soc: qcom: aoss: Drop power-domain bindings Sibi Sankar
@ 2021-06-25 21:31   ` Matthias Kaehlcke
  0 siblings, 0 replies; 27+ messages in thread
From: Matthias Kaehlcke @ 2021-06-25 21:31 UTC (permalink / raw)
  To: Sibi Sankar
  Cc: bjorn.andersson, robh+dt, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

On Fri, Jun 25, 2021 at 12:21:55AM +0530, Sibi Sankar wrote:
> The power-domains exposed by AOSS QMP node are used to notify the Always
> on Subsystem (AOSS) that a particular co-processor is up/down. These
> co-processors enter low-power modes independent to that of the application
> processor and their states are expected to remain unaltered across system
> suspend/resume cycles. To achieve this behavior let's drop the power-domain
> bindings and replace them with generic qmp_send interface instead.
> 
> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> Reviewed-by: Stephen Boyd <swboyd@chromium.org>
> Acked-by: Rob Herring <robh@kernel.org>

FWIW:

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 05/13] arm64: dts: qcom: sc7180: Use QMP binding to control load state
  2021-06-24 18:51 ` [PATCH v3 05/13] arm64: dts: qcom: sc7180: Use QMP binding to control " Sibi Sankar
@ 2021-06-25 21:35   ` Matthias Kaehlcke
  2021-06-30 19:52     ` Sibi Sankar
  0 siblings, 1 reply; 27+ messages in thread
From: Matthias Kaehlcke @ 2021-06-25 21:35 UTC (permalink / raw)
  To: Sibi Sankar
  Cc: bjorn.andersson, robh+dt, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

On Fri, Jun 25, 2021 at 12:21:59AM +0530, Sibi Sankar wrote:
> Subject: arm64: dts: qcom: sc7180: Use QMP binding to control load state

nit: s/binding //

> Use the Qualcomm Mailbox Protocol (QMP) binding to control the load

ditto

same for other DT patches if you re-spin

> state resources on SC7180 SoCs and drop deprecated power-domains exposed
> by AOSS QMP node.
> 
> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> Reviewed-by: Stephen Boyd <swboyd@chromium.org>

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 11/13] soc: qcom: aoss: Drop power domain support
  2021-06-24 18:52 ` [PATCH v3 11/13] soc: qcom: aoss: Drop power domain support Sibi Sankar
@ 2021-06-25 22:01   ` Matthias Kaehlcke
  2021-06-30 19:56     ` Sibi Sankar
  0 siblings, 1 reply; 27+ messages in thread
From: Matthias Kaehlcke @ 2021-06-25 22:01 UTC (permalink / raw)
  To: Sibi Sankar
  Cc: bjorn.andersson, robh+dt, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

On Fri, Jun 25, 2021 at 12:22:05AM +0530, Sibi Sankar wrote:
> The load state resources are expected to follow the life cycle of the
> remote processor it tracks. However, modeling load state resources as
> power-domains result in them getting turned off during system suspend
> and thereby falling out of sync with the remote processors that are still
> on. Fix this by replacing load state resource control through the generic
> qmp message send interface instead.

nit: the above sounds as if this patch does all of that, when it only
removes power domain support. Instead you could start with saying what
the patch actually does (remove power domain support), followed by why
PD support isn't needed anymore (now done by sending QMP messages directly).

> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> ---
>  drivers/soc/qcom/qcom_aoss.c | 109 ++-----------------------------------------
>  1 file changed, 3 insertions(+), 106 deletions(-)
> 
> diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c
> index 998ee7605eb2..f0c3726e8c46 100644
> --- a/drivers/soc/qcom/qcom_aoss.c
> +++ b/drivers/soc/qcom/qcom_aoss.c
>
> ...
>
> @@ -650,13 +550,11 @@ static int qmp_probe(struct platform_device *pdev)
>  	if (ret)
>  		goto err_close_qmp;
>  
> -	ret = qmp_pd_add(qmp);
> -	if (ret)
> -		goto err_remove_qdss_clk;
> -
>  	ret = qmp_cooling_devices_register(qmp);
> -	if (ret)
> +	if (ret) {
>  		dev_err(&pdev->dev, "failed to register aoss cooling devices\n");
> +		goto err_remove_qdss_clk;

This isn't really related with the PD removal, right? I wonder if it was
intentional to have _probe() succeed even when the cooling device
registration failed, since the cooling devices aren't essential.

If it is still desirable to fail the change should be done in a separate
patch, unless it is actually related with removing PD support.

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 13/13] dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions
  2021-06-24 18:52 ` [PATCH v3 13/13] dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions Sibi Sankar
@ 2021-06-25 22:16   ` Matthias Kaehlcke
  0 siblings, 0 replies; 27+ messages in thread
From: Matthias Kaehlcke @ 2021-06-25 22:16 UTC (permalink / raw)
  To: Sibi Sankar
  Cc: bjorn.andersson, robh+dt, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

On Fri, Jun 25, 2021 at 12:22:07AM +0530, Sibi Sankar wrote:
> Delete unused power-domain definitions exposed by AOSS QMP.
> 
> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> Reviewed-by: Stephen Boyd <swboyd@chromium.org>
> Acked-by: Rob Herring <robh@kernel.org>

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 04/13] remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state
  2021-06-25 21:11   ` Matthias Kaehlcke
@ 2021-06-30 19:31     ` Sibi Sankar
  0 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-30 19:31 UTC (permalink / raw)
  To: Matthias Kaehlcke
  Cc: bjorn.andersson, robh+dt, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

Hey Matthias,
Thanks for taking time to review the series.

On 2021-06-26 02:41, Matthias Kaehlcke wrote:
> On Fri, Jun 25, 2021 at 12:21:58AM +0530, Sibi Sankar wrote:
>> The power domains exposed by the AOSS QMP driver control the load 
>> state
>> resources linked to modem, adsp, cdsp remoteprocs. These are used to
>> notify the Always on Subsystem (AOSS) that a particular co-processor 
>> is
>> up/down. AOSS uses this information to wait for the co-processors to
>> suspend before starting its sleep sequence.
>> 
>> These co-processors enter low-power modes independent to that of the
>> application processor and the load state resources linked to them are
>> expected to remain unaltered across system suspend/resume cycles. To
>> achieve this behavior lets stop using the power-domains exposed by the
>> AOSS QMP node and replace them with generic qmp_send interface 
>> instead.
>> 
>> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
>> ---
>>  drivers/remoteproc/qcom_q6v5.c      | 56 +++++++++++++++++++++++++-
>>  drivers/remoteproc/qcom_q6v5.h      |  7 +++-
>>  drivers/remoteproc/qcom_q6v5_adsp.c |  7 +++-
>>  drivers/remoteproc/qcom_q6v5_mss.c  | 44 ++++----------------
>>  drivers/remoteproc/qcom_q6v5_pas.c  | 80 
>> +++++++++----------------------------
>>  drivers/remoteproc/qcom_q6v5_wcss.c |  4 +-
>>  6 files changed, 94 insertions(+), 104 deletions(-)
>> 
>> diff --git a/drivers/remoteproc/qcom_q6v5.c 
>> b/drivers/remoteproc/qcom_q6v5.c
>> index 9627a950928e..4a9a481c211b 100644
>> --- a/drivers/remoteproc/qcom_q6v5.c
>> +++ b/drivers/remoteproc/qcom_q6v5.c
>> @@ -16,8 +16,28 @@
>>  #include "qcom_common.h"
>>  #include "qcom_q6v5.h"
>> 
>> +#define Q6V5_LOAD_STATE_MSG_LEN	64
>>  #define Q6V5_PANIC_DELAY_MS	200
>> 
>> +static int q6v5_load_state_toggle(struct qcom_q6v5 *q6v5, bool 
>> enable)
>> +{
>> +	char buf[Q6V5_LOAD_STATE_MSG_LEN] = {};
>> +	int ret;
>> +
>> +	if (IS_ERR(q6v5->qmp))
>> +		return 0;
>> +
>> +	snprintf(buf, sizeof(buf),
>> +		 "{class: image, res: load_state, name: %s, val: %s}",
>> +		 q6v5->load_state, enable ? "on" : "off");
>> +
>> +	ret = qmp_send(q6v5->qmp, buf, sizeof(buf));
>> +	if (ret)
>> +		dev_err(q6v5->dev, "failed to toggle load state\n");
>> +
>> +	return ret;
>> +}
>> +
>>  /**
>>   * qcom_q6v5_prepare() - reinitialize the qcom_q6v5 context before 
>> start
>>   * @q6v5:	reference to qcom_q6v5 context to be reinitialized
>> @@ -26,6 +46,12 @@
>>   */
>>  int qcom_q6v5_prepare(struct qcom_q6v5 *q6v5)
>>  {
>> +	int ret;
>> +
>> +	ret = q6v5_load_state_toggle(q6v5, true);
>> +	if (ret)
>> +		return ret;
>> +
>>  	reinit_completion(&q6v5->start_done);
>>  	reinit_completion(&q6v5->stop_done);
>> 
>> @@ -47,6 +73,7 @@ EXPORT_SYMBOL_GPL(qcom_q6v5_prepare);
>>  int qcom_q6v5_unprepare(struct qcom_q6v5 *q6v5)
>>  {
>>  	disable_irq(q6v5->handover_irq);
>> +	q6v5_load_state_toggle(q6v5, false);
>> 
>>  	return !q6v5->handover_issued;
>>  }
>> @@ -196,12 +223,13 @@ EXPORT_SYMBOL_GPL(qcom_q6v5_panic);
>>   * @pdev:	platform_device reference for acquiring resources
>>   * @rproc:	associated remoteproc instance
>>   * @crash_reason: SMEM id for crash reason string, or 0 if none
>> + * @load_state: load state resource string
>>   * @handover:	function to be called when proxy resources should be 
>> released
>>   *
>>   * Return: 0 on success, negative errno on failure
>>   */
>>  int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device 
>> *pdev,
>> -		   struct rproc *rproc, int crash_reason,
>> +		   struct rproc *rproc, int crash_reason, const char *load_state,
>>  		   void (*handover)(struct qcom_q6v5 *q6v5))
>>  {
>>  	int ret;
>> @@ -210,6 +238,7 @@ int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct 
>> platform_device *pdev,
>>  	q6v5->dev = &pdev->dev;
>>  	q6v5->crash_reason = crash_reason;
>>  	q6v5->handover = handover;
>> +	q6v5->load_state = kstrdup_const(load_state, GFP_KERNEL);
>> 
>>  	init_completion(&q6v5->start_done);
>>  	init_completion(&q6v5->stop_done);
>> @@ -286,9 +315,34 @@ int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct 
>> platform_device *pdev,
>>  		return PTR_ERR(q6v5->state);
>>  	}
>> 
>> +	q6v5->qmp = qmp_get(&pdev->dev);
>> +	if (IS_ERR(q6v5->qmp)) {
>> +		if (PTR_ERR(q6v5->qmp) != -ENODEV) {
>> +			if (PTR_ERR(q6v5->qmp) != -EPROBE_DEFER)
>> +				dev_err(&pdev->dev, "failed to acquire load state\n");
>> +			return PTR_ERR(q6v5->qmp);
>> +		}
>> +	} else {
>> +		if (!q6v5->load_state) {
>> +			dev_err(&pdev->dev, "load state resource string empty\n");
>> +			return -EINVAL;
>> +		}
>> +	}
>> +
>>  	return 0;
>>  }
>>  EXPORT_SYMBOL_GPL(qcom_q6v5_init);
>> 
>> +/**
>> + * qcom_q6v5_deinit() - deinitialize the q6v5 common struct
>> + * @q6v5:	reference to qcom_q6v5 context to be deinitialized
>> + * @pdev:	platform_device reference for acquiring resources
>> + */
>> +void qcom_q6v5_deinit(struct qcom_q6v5 *q6v5, struct platform_device 
>> *pdev)
>> +{
> 
> pdev isn't used, remove it?

thanks for catching this. It was an
artefact of the recent qmp api changes.

> 
> 	kfree_const(q6v5->load_state);
> 
>> +	qmp_put(q6v5->qmp);
>> +}
>> +EXPORT_SYMBOL_GPL(qcom_q6v5_deinit);
>> +
>>  MODULE_LICENSE("GPL v2");
>>  MODULE_DESCRIPTION("Qualcomm Peripheral Image Loader for Q6V5");
>> diff --git a/drivers/remoteproc/qcom_q6v5.h 
>> b/drivers/remoteproc/qcom_q6v5.h
>> index 1c212f670cbc..3d9f525cb4ec 100644
>> --- a/drivers/remoteproc/qcom_q6v5.h
>> +++ b/drivers/remoteproc/qcom_q6v5.h
>> @@ -5,6 +5,7 @@
>> 
>>  #include <linux/kernel.h>
>>  #include <linux/completion.h>
>> +#include <linux/soc/qcom/qcom_aoss.h>
>> 
>>  struct rproc;
>>  struct qcom_smem_state;
>> @@ -15,6 +16,8 @@ struct qcom_q6v5 {
>>  	struct rproc *rproc;
>> 
>>  	struct qcom_smem_state *state;
>> +	struct qmp *qmp;
>> +
>>  	unsigned stop_bit;
>> 
>>  	int wdog_irq;
>> @@ -32,12 +35,14 @@ struct qcom_q6v5 {
>> 
>>  	bool running;
>> 
>> +	const char *load_state;
>>  	void (*handover)(struct qcom_q6v5 *q6v5);
>>  };
>> 
>>  int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device 
>> *pdev,
>> -		   struct rproc *rproc, int crash_reason,
>> +		   struct rproc *rproc, int crash_reason, const char *load_state,
>>  		   void (*handover)(struct qcom_q6v5 *q6v5));
>> +void qcom_q6v5_deinit(struct qcom_q6v5 *q6v5, struct platform_device 
>> *pdev);
>> 
>>  int qcom_q6v5_prepare(struct qcom_q6v5 *q6v5);
>>  int qcom_q6v5_unprepare(struct qcom_q6v5 *q6v5);
>> diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c 
>> b/drivers/remoteproc/qcom_q6v5_adsp.c
>> index 8b0d8bbacd2e..0f5e0fd216b4 100644
>> --- a/drivers/remoteproc/qcom_q6v5_adsp.c
>> +++ b/drivers/remoteproc/qcom_q6v5_adsp.c
>> @@ -185,7 +185,9 @@ static int adsp_start(struct rproc *rproc)
>>  	int ret;
>>  	unsigned int val;
>> 
>> -	qcom_q6v5_prepare(&adsp->q6v5);
>> +	ret = qcom_q6v5_prepare(&adsp->q6v5);
>> +	if (ret)
>> +		return ret;
>> 
>>  	ret = clk_prepare_enable(adsp->xo);
>>  	if (ret)
>> @@ -465,7 +467,7 @@ static int adsp_probe(struct platform_device 
>> *pdev)
>>  	if (ret)
>>  		goto disable_pm;
>> 
>> -	ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, 
>> desc->crash_reason_smem,
>> +	ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, 
>> desc->crash_reason_smem, NULL,
>>  			     qcom_adsp_pil_handover);
> 
> Doesn't passing a load_state of NULL cause qcom_q6v5_init() to fail
> with -EINVAL?

qmp_get is expected to error out with
-ENODEV since we don't mention a qmp
node in dt. When a client needs to use
qmp in the future we would replace NULL
with the proper load_state string value.

> 
>> --- a/drivers/remoteproc/qcom_q6v5_wcss.c
>> +++ b/drivers/remoteproc/qcom_q6v5_wcss.c
>> @@ -1044,8 +1044,7 @@ static int q6v5_wcss_probe(struct 
>> platform_device *pdev)
>>  	if (ret)
>>  		goto free_rproc;
>> 
>> -	ret = qcom_q6v5_init(&wcss->q6v5, pdev, rproc, 
>> desc->crash_reason_smem,
>> -			     NULL);
>> +	ret = qcom_q6v5_init(&wcss->q6v5, pdev, rproc, 
>> desc->crash_reason_smem, NULL, NULL);
> 
> Same as for adsp_probe(), doesn't a load_state of NULL cause _init() to 
> fail?

it won't for the same reason explained
above.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings
  2021-06-25 21:19   ` Matthias Kaehlcke
@ 2021-06-30 19:51     ` Sibi Sankar
  0 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-30 19:51 UTC (permalink / raw)
  To: Matthias Kaehlcke
  Cc: bjorn.andersson, robh+dt, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

On 2021-06-26 02:49, Matthias Kaehlcke wrote:
> On Fri, Jun 25, 2021 at 12:21:56AM +0530, Sibi Sankar wrote:
> 
>> Subject: dt-bindings: remoteproc: qcom: pas: Add QMP bindings
> 
> nit: does this really add a QMP binding (as in
> Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt) or
> rather a QMP property/phandle to the ADSP binding?
> 
>> Add Qualcomm Mailbox Protocol (QMP) binding to replace the power 
>> domains
> 
> same nit
> 

Will need to re-spin this anyway since Bjorn
aoss-qmp to yaml, will fixup the commit message.

>> exposed by the AOSS QMP node.
>> 
>> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 05/13] arm64: dts: qcom: sc7180: Use QMP binding to control load state
  2021-06-25 21:35   ` Matthias Kaehlcke
@ 2021-06-30 19:52     ` Sibi Sankar
  0 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-30 19:52 UTC (permalink / raw)
  To: Matthias Kaehlcke
  Cc: bjorn.andersson, robh+dt, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

On 2021-06-26 03:05, Matthias Kaehlcke wrote:
> On Fri, Jun 25, 2021 at 12:21:59AM +0530, Sibi Sankar wrote:
>> Subject: arm64: dts: qcom: sc7180: Use QMP binding to control load 
>> state
> 
> nit: s/binding //
> 
>> Use the Qualcomm Mailbox Protocol (QMP) binding to control the load
> 
> ditto
> 
> same for other DT patches if you re-spin

sure, I fix this up in the re-spin
that I base on top of Bjorn's aoss-qmp
yaml conversion series.

> 
>> state resources on SC7180 SoCs and drop deprecated power-domains 
>> exposed
>> by AOSS QMP node.
>> 
>> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
>> Reviewed-by: Stephen Boyd <swboyd@chromium.org>
> 
> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 11/13] soc: qcom: aoss: Drop power domain support
  2021-06-25 22:01   ` Matthias Kaehlcke
@ 2021-06-30 19:56     ` Sibi Sankar
  0 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-06-30 19:56 UTC (permalink / raw)
  To: Matthias Kaehlcke
  Cc: bjorn.andersson, robh+dt, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

On 2021-06-26 03:31, Matthias Kaehlcke wrote:
> On Fri, Jun 25, 2021 at 12:22:05AM +0530, Sibi Sankar wrote:
>> The load state resources are expected to follow the life cycle of the
>> remote processor it tracks. However, modeling load state resources as
>> power-domains result in them getting turned off during system suspend
>> and thereby falling out of sync with the remote processors that are 
>> still
>> on. Fix this by replacing load state resource control through the 
>> generic
>> qmp message send interface instead.
> 
> nit: the above sounds as if this patch does all of that, when it only
> removes power domain support. Instead you could start with saying what
> the patch actually does (remove power domain support), followed by why
> PD support isn't needed anymore (now done by sending QMP messages 
> directly).
> 

sure, will fix this up in the next
re-spin.

>> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
>> ---
>>  drivers/soc/qcom/qcom_aoss.c | 109 
>> ++-----------------------------------------
>>  1 file changed, 3 insertions(+), 106 deletions(-)
>> 
>> diff --git a/drivers/soc/qcom/qcom_aoss.c 
>> b/drivers/soc/qcom/qcom_aoss.c
>> index 998ee7605eb2..f0c3726e8c46 100644
>> --- a/drivers/soc/qcom/qcom_aoss.c
>> +++ b/drivers/soc/qcom/qcom_aoss.c
>> 
>> ...
>> 
>> @@ -650,13 +550,11 @@ static int qmp_probe(struct platform_device 
>> *pdev)
>>  	if (ret)
>>  		goto err_close_qmp;
>> 
>> -	ret = qmp_pd_add(qmp);
>> -	if (ret)
>> -		goto err_remove_qdss_clk;
>> -
>>  	ret = qmp_cooling_devices_register(qmp);
>> -	if (ret)
>> +	if (ret) {
>>  		dev_err(&pdev->dev, "failed to register aoss cooling devices\n");
>> +		goto err_remove_qdss_clk;
> 
> This isn't really related with the PD removal, right? I wonder if it 
> was
> intentional to have _probe() succeed even when the cooling device
> registration failed, since the cooling devices aren't essential.
> 

Thanks for catching ^^

> If it is still desirable to fail the change should be done in a 
> separate
> patch, unless it is actually related with removing PD support.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings
  2021-06-24 18:51 ` [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings Sibi Sankar
  2021-06-25 21:19   ` Matthias Kaehlcke
@ 2021-07-14 19:34   ` Rob Herring
  2021-07-19 16:30     ` Sibi Sankar
  2021-07-19 19:44   ` Bjorn Andersson
  2 siblings, 1 reply; 27+ messages in thread
From: Rob Herring @ 2021-07-14 19:34 UTC (permalink / raw)
  To: Sibi Sankar
  Cc: bjorn.andersson, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

On Fri, Jun 25, 2021 at 12:21:56AM +0530, Sibi Sankar wrote:
> Add Qualcomm Mailbox Protocol (QMP) binding to replace the power domains
> exposed by the AOSS QMP node.

Not a compatible change. Explain why that's okay for all 
platforms/users.

> 
> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> ---
> 
> v3:
>  * Misc. documentation fixes:
>   - Reduce power-domain maxItems due to load_state pd removal
>   - Combine compatibles where possible with the load_state pd removal
>   - Fixup the qcom,qmp ref to phandle type
> 
>  .../devicetree/bindings/remoteproc/qcom,adsp.yaml  | 62 +++++++++++-----------
>  1 file changed, 30 insertions(+), 32 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> index 9ea05e608bc1..ad85617b43fa 100644
> --- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> @@ -75,11 +75,11 @@ properties:
>  
>    power-domains:
>      minItems: 1
> -    maxItems: 3
> +    maxItems: 2
>  
>    power-domain-names:
>      minItems: 1
> -    maxItems: 3
> +    maxItems: 2
>  
>    firmware-name:
>      $ref: /schemas/types.yaml#/definitions/string
> @@ -89,6 +89,10 @@ properties:
>      maxItems: 1
>      description: Reference to the reserved-memory for the Hexagon core
>  
> +  qcom,qmp:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: Reference to the AOSS side-channel message RAM.
> +
>    qcom,smem-states:
>      $ref: /schemas/types.yaml#/definitions/phandle-array
>      description: States used by the AP to signal the Hexagon core
> @@ -359,13 +363,11 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: CX power domain
>              - description: MX power domain
>              - description: MSS power domain
>          power-domain-names:
>            items:
> -            - const: load_state
>              - const: cx
>              - const: mx
>              - const: mss
> @@ -381,43 +383,20 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: CX power domain
> -        power-domain-names:
> -          items:
> -            - const: load_state
> -            - const: cx
>  
>    - if:
>        properties:
>          compatible:
>            contains:
>              enum:
> +              - qcom,sdx55-mpss-pas
>                - qcom,sm8150-mpss-pas
>                - qcom,sm8350-mpss-pas
>      then:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
> -            - description: CX power domain
> -            - description: MSS power domain
> -        power-domain-names:
> -          items:
> -            - const: load_state
> -            - const: cx
> -            - const: mss
> -
> -  - if:
> -      properties:
> -        compatible:
> -          contains:
> -            enum:
> -              - qcom,sdx55-mpss-pas
> -    then:
> -      properties:
> -        power-domains:
> -          items:
>              - description: CX power domain
>              - description: MSS power domain
>          power-domain-names:
> @@ -439,12 +418,10 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: LCX power domain
>              - description: LMX power domain
>          power-domain-names:
>            items:
> -            - const: load_state
>              - const: lcx
>              - const: lmx
>  
> @@ -458,12 +435,10 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: CX power domain
>              - description: MXC power domain
>          power-domain-names:
>            items:
> -            - const: load_state
>              - const: cx
>              - const: mxc
>  
> @@ -499,6 +474,29 @@ allOf:
>              - const: mss_restart
>              - const: pdc_reset
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,sc7180-mpss-pas
> +              - qcom,sm8150-adsp-pas
> +              - qcom,sm8150-cdsp-pas
> +              - qcom,sm8150-mpss-pas
> +              - qcom,sm8150-slpi-pas
> +              - qcom,sm8250-adsp-pas
> +              - qcom,sm8250-cdsp-pas
> +              - qcom,sm8250-slpi-pas
> +              - qcom,sm8350-adsp-pas
> +              - qcom,sm8350-cdsp-pas
> +              - qcom,sm8350-mpss-pas
> +              - qcom,sm8350-slpi-pas
> +    then:
> +      properties:
> +        qcom,qmp:
> +          items:
> +            - description: Reference to the AOSS side-channel message RAM.
> +
>  examples:
>    - |
>      #include <dt-bindings/clock/qcom,rpmcc.h>
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 
> 

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings
  2021-07-14 19:34   ` Rob Herring
@ 2021-07-19 16:30     ` Sibi Sankar
  0 siblings, 0 replies; 27+ messages in thread
From: Sibi Sankar @ 2021-07-19 16:30 UTC (permalink / raw)
  To: Rob Herring
  Cc: bjorn.andersson, swboyd, ulf.hansson, rjw, agross, ohad,
	mathieu.poirier, linux-arm-msm, linux-remoteproc, devicetree,
	linux-kernel, dianders, rishabhb, sidgup

On 2021-07-15 01:04, Rob Herring wrote:
> On Fri, Jun 25, 2021 at 12:21:56AM +0530, Sibi Sankar wrote:
>> Add Qualcomm Mailbox Protocol (QMP) binding to replace the power 
>> domains
>> exposed by the AOSS QMP node.
> 
> Not a compatible change. Explain why that's okay for all
> platforms/users.

It's not meant for all platforms.
Rather we just replace the load-state
power-domain with the new qmp
property and it only affects the
compatibles covered below.

> 
>> 
>> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
>> ---
>> 
>> v3:
>>  * Misc. documentation fixes:
>>   - Reduce power-domain maxItems due to load_state pd removal
>>   - Combine compatibles where possible with the load_state pd removal
>>   - Fixup the qcom,qmp ref to phandle type
>> 
>>  .../devicetree/bindings/remoteproc/qcom,adsp.yaml  | 62 
>> +++++++++++-----------
>>  1 file changed, 30 insertions(+), 32 deletions(-)
>> 
>> diff --git 
>> a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml 
>> b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
>> index 9ea05e608bc1..ad85617b43fa 100644
>> --- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
>> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
>> @@ -75,11 +75,11 @@ properties:
>> 
>>    power-domains:
>>      minItems: 1
>> -    maxItems: 3
>> +    maxItems: 2
>> 
>>    power-domain-names:
>>      minItems: 1
>> -    maxItems: 3
>> +    maxItems: 2
>> 
>>    firmware-name:
>>      $ref: /schemas/types.yaml#/definitions/string
>> @@ -89,6 +89,10 @@ properties:
>>      maxItems: 1
>>      description: Reference to the reserved-memory for the Hexagon 
>> core
>> 
>> +  qcom,qmp:
>> +    $ref: /schemas/types.yaml#/definitions/phandle
>> +    description: Reference to the AOSS side-channel message RAM.
>> +
>>    qcom,smem-states:
>>      $ref: /schemas/types.yaml#/definitions/phandle-array
>>      description: States used by the AP to signal the Hexagon core
>> @@ -359,13 +363,11 @@ allOf:
>>        properties:
>>          power-domains:
>>            items:
>> -            - description: Load State power domain
>>              - description: CX power domain
>>              - description: MX power domain
>>              - description: MSS power domain
>>          power-domain-names:
>>            items:
>> -            - const: load_state
>>              - const: cx
>>              - const: mx
>>              - const: mss
>> @@ -381,43 +383,20 @@ allOf:
>>        properties:
>>          power-domains:
>>            items:
>> -            - description: Load State power domain
>>              - description: CX power domain
>> -        power-domain-names:
>> -          items:
>> -            - const: load_state
>> -            - const: cx
>> 
>>    - if:
>>        properties:
>>          compatible:
>>            contains:
>>              enum:
>> +              - qcom,sdx55-mpss-pas
>>                - qcom,sm8150-mpss-pas
>>                - qcom,sm8350-mpss-pas
>>      then:
>>        properties:
>>          power-domains:
>>            items:
>> -            - description: Load State power domain
>> -            - description: CX power domain
>> -            - description: MSS power domain
>> -        power-domain-names:
>> -          items:
>> -            - const: load_state
>> -            - const: cx
>> -            - const: mss
>> -
>> -  - if:
>> -      properties:
>> -        compatible:
>> -          contains:
>> -            enum:
>> -              - qcom,sdx55-mpss-pas
>> -    then:
>> -      properties:
>> -        power-domains:
>> -          items:
>>              - description: CX power domain
>>              - description: MSS power domain
>>          power-domain-names:
>> @@ -439,12 +418,10 @@ allOf:
>>        properties:
>>          power-domains:
>>            items:
>> -            - description: Load State power domain
>>              - description: LCX power domain
>>              - description: LMX power domain
>>          power-domain-names:
>>            items:
>> -            - const: load_state
>>              - const: lcx
>>              - const: lmx
>> 
>> @@ -458,12 +435,10 @@ allOf:
>>        properties:
>>          power-domains:
>>            items:
>> -            - description: Load State power domain
>>              - description: CX power domain
>>              - description: MXC power domain
>>          power-domain-names:
>>            items:
>> -            - const: load_state
>>              - const: cx
>>              - const: mxc
>> 
>> @@ -499,6 +474,29 @@ allOf:
>>              - const: mss_restart
>>              - const: pdc_reset
>> 
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            enum:
>> +              - qcom,sc7180-mpss-pas
>> +              - qcom,sm8150-adsp-pas
>> +              - qcom,sm8150-cdsp-pas
>> +              - qcom,sm8150-mpss-pas
>> +              - qcom,sm8150-slpi-pas
>> +              - qcom,sm8250-adsp-pas
>> +              - qcom,sm8250-cdsp-pas
>> +              - qcom,sm8250-slpi-pas
>> +              - qcom,sm8350-adsp-pas
>> +              - qcom,sm8350-cdsp-pas
>> +              - qcom,sm8350-mpss-pas
>> +              - qcom,sm8350-slpi-pas
>> +    then:
>> +      properties:
>> +        qcom,qmp:
>> +          items:
>> +            - description: Reference to the AOSS side-channel message 
>> RAM.
>> +
>>  examples:
>>    - |
>>      #include <dt-bindings/clock/qcom,rpmcc.h>
>> --
>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora 
>> Forum,
>> a Linux Foundation Collaborative Project
>> 
>> 

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.

^ permalink raw reply	[flat|nested] 27+ messages in thread

* Re: [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings
  2021-06-24 18:51 ` [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings Sibi Sankar
  2021-06-25 21:19   ` Matthias Kaehlcke
  2021-07-14 19:34   ` Rob Herring
@ 2021-07-19 19:44   ` Bjorn Andersson
  2 siblings, 0 replies; 27+ messages in thread
From: Bjorn Andersson @ 2021-07-19 19:44 UTC (permalink / raw)
  To: Sibi Sankar
  Cc: robh+dt, swboyd, ulf.hansson, rjw, agross, ohad, mathieu.poirier,
	linux-arm-msm, linux-remoteproc, devicetree, linux-kernel,
	dianders, rishabhb, sidgup

On Thu 24 Jun 13:51 CDT 2021, Sibi Sankar wrote:

> Add Qualcomm Mailbox Protocol (QMP) binding to replace the power domains
> exposed by the AOSS QMP node.
> 

I think this would be a good opportunity to describe why you need to
make this change to the binding.

Regards,
Bjorn

> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> ---
> 
> v3:
>  * Misc. documentation fixes:
>   - Reduce power-domain maxItems due to load_state pd removal
>   - Combine compatibles where possible with the load_state pd removal
>   - Fixup the qcom,qmp ref to phandle type
> 
>  .../devicetree/bindings/remoteproc/qcom,adsp.yaml  | 62 +++++++++++-----------
>  1 file changed, 30 insertions(+), 32 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> index 9ea05e608bc1..ad85617b43fa 100644
> --- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> @@ -75,11 +75,11 @@ properties:
>  
>    power-domains:
>      minItems: 1
> -    maxItems: 3
> +    maxItems: 2
>  
>    power-domain-names:
>      minItems: 1
> -    maxItems: 3
> +    maxItems: 2
>  
>    firmware-name:
>      $ref: /schemas/types.yaml#/definitions/string
> @@ -89,6 +89,10 @@ properties:
>      maxItems: 1
>      description: Reference to the reserved-memory for the Hexagon core
>  
> +  qcom,qmp:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: Reference to the AOSS side-channel message RAM.
> +
>    qcom,smem-states:
>      $ref: /schemas/types.yaml#/definitions/phandle-array
>      description: States used by the AP to signal the Hexagon core
> @@ -359,13 +363,11 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: CX power domain
>              - description: MX power domain
>              - description: MSS power domain
>          power-domain-names:
>            items:
> -            - const: load_state
>              - const: cx
>              - const: mx
>              - const: mss
> @@ -381,43 +383,20 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: CX power domain
> -        power-domain-names:
> -          items:
> -            - const: load_state
> -            - const: cx
>  
>    - if:
>        properties:
>          compatible:
>            contains:
>              enum:
> +              - qcom,sdx55-mpss-pas
>                - qcom,sm8150-mpss-pas
>                - qcom,sm8350-mpss-pas
>      then:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
> -            - description: CX power domain
> -            - description: MSS power domain
> -        power-domain-names:
> -          items:
> -            - const: load_state
> -            - const: cx
> -            - const: mss
> -
> -  - if:
> -      properties:
> -        compatible:
> -          contains:
> -            enum:
> -              - qcom,sdx55-mpss-pas
> -    then:
> -      properties:
> -        power-domains:
> -          items:
>              - description: CX power domain
>              - description: MSS power domain
>          power-domain-names:
> @@ -439,12 +418,10 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: LCX power domain
>              - description: LMX power domain
>          power-domain-names:
>            items:
> -            - const: load_state
>              - const: lcx
>              - const: lmx
>  
> @@ -458,12 +435,10 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: CX power domain
>              - description: MXC power domain
>          power-domain-names:
>            items:
> -            - const: load_state
>              - const: cx
>              - const: mxc
>  
> @@ -499,6 +474,29 @@ allOf:
>              - const: mss_restart
>              - const: pdc_reset
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,sc7180-mpss-pas
> +              - qcom,sm8150-adsp-pas
> +              - qcom,sm8150-cdsp-pas
> +              - qcom,sm8150-mpss-pas
> +              - qcom,sm8150-slpi-pas
> +              - qcom,sm8250-adsp-pas
> +              - qcom,sm8250-cdsp-pas
> +              - qcom,sm8250-slpi-pas
> +              - qcom,sm8350-adsp-pas
> +              - qcom,sm8350-cdsp-pas
> +              - qcom,sm8350-mpss-pas
> +              - qcom,sm8350-slpi-pas
> +    then:
> +      properties:
> +        qcom,qmp:
> +          items:
> +            - description: Reference to the AOSS side-channel message RAM.
> +
>  examples:
>    - |
>      #include <dt-bindings/clock/qcom,rpmcc.h>
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 

^ permalink raw reply	[flat|nested] 27+ messages in thread

end of thread, other threads:[~2021-07-19 20:27 UTC | newest]

Thread overview: 27+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
2021-06-24 18:51 ` [PATCH v3 01/13] dt-bindings: soc: qcom: aoss: Drop power-domain bindings Sibi Sankar
2021-06-25 21:31   ` Matthias Kaehlcke
2021-06-24 18:51 ` [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings Sibi Sankar
2021-06-25 21:19   ` Matthias Kaehlcke
2021-06-30 19:51     ` Sibi Sankar
2021-07-14 19:34   ` Rob Herring
2021-07-19 16:30     ` Sibi Sankar
2021-07-19 19:44   ` Bjorn Andersson
2021-06-24 18:51 ` [PATCH v3 03/13] dt-bindings: remoteproc: qcom: " Sibi Sankar
2021-06-24 18:51 ` [PATCH v3 04/13] remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state Sibi Sankar
2021-06-25 21:11   ` Matthias Kaehlcke
2021-06-30 19:31     ` Sibi Sankar
2021-06-24 18:51 ` [PATCH v3 05/13] arm64: dts: qcom: sc7180: Use QMP binding to control " Sibi Sankar
2021-06-25 21:35   ` Matthias Kaehlcke
2021-06-30 19:52     ` Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 06/13] arm64: dts: qcom: sc7280: " Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 07/13] arm64: dts: qcom: sdm845: " Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 08/13] arm64: dts: qcom: sm8150: " Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 09/13] arm64: dts: qcom: sm8250: " Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 10/13] arm64: dts: qcom: sm8350: " Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 11/13] soc: qcom: aoss: Drop power domain support Sibi Sankar
2021-06-25 22:01   ` Matthias Kaehlcke
2021-06-30 19:56     ` Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 12/13] dt-bindings: msm/dp: Remove aoss-qmp header Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 13/13] dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions Sibi Sankar
2021-06-25 22:16   ` Matthias Kaehlcke

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