[PATCH v1 00/14] Add support for TI TPS65219 PMIC.

[PATCH v1 00/14] Add support for TI TPS65219 PMIC.

[Jerome Neanne]

Not implemented
- DVS

1-Regulators:
Full implementation and test
Visual check: cat /sys/kernel/debug/regulator/regulator_summary
Full validation requires userspace-consumer and virtual-regulator
LDO1 is not used and output can be probbed on TP84.

Changes vs RFC:
Use standard regmap helpers only.
Reshaped integrating review feedbacks.

2-Reset WARM/COLD
test procedure: launch reboot on the console and check visually

warm vs. cold can be configured on the kernel command-line at boot time.
Default is cold, but adding `reboot=w`
to kernel command allow testing warm reboot.

Alternative:
`# echo warm > /sys/kernel/reboot/mode` 

Changes vs RFC:
Hooked to standard linux/reboot.h
Add pr_flush to ensure output to console happens.


3-SW Shutdown
test procedure: launch halt on the console and check visually

Note: enters in competition with other source during probe

Board Test Points can be used to check voltage after system shutdown.
baseport is not handling wakeup.
A power OFF/ON cycle is needed to recover.

Changes vs RFC:
Standard system-power-controller has been implemented to enable override.

4-Interrupt Pin (nINT): NEW, was not implemented in RFC

Interrupt occurring on PMIC TPS65219 is propagated to SOC
through EXTINTn pin connected to gic500 interrupt controller

Interrupt lines for TPS65219 shows-up on console:
cat /proc/interrupts

Validation:
Create a Residual Voltage interrupt and handling and interrupt source is cleared.
`tps65219 0-0030: Registered residual voltage for LDO1`
`533:          1          0  tps65219_irq  35 Edge      LDO1_RV`

Mapped to power button (use TP90 to GND to emulate a physical button)

5-PB Startup and Shutdown: NEW, was not implemented in RFC
New implementation to support both rising and falling edge.

TPS65219 has different interrupts compared to other TPS6521* chips.
TPS65219 defines two interrupts for the powerbutton one for push and one
for release.


Interrupt support: cat proc/interrupts
`557:          0          0  tps65219_irq  47 Edge      tps65219-pwrbutton.1.auto`
`558:          0          0  tps65219_irq  48 Edge      tps65219-pwrbutton.1.auto`

Jerome Neanne (9):
  regulator: dt-bindings: Add TI TPS65219 PMIC bindings
  regulator: dt-bindings: Add interrupts support to TPS65219 PMIC
    bindings
  mfd: drivers: Add TI TPS65219 PMIC support
  mfd: drivers: Add interrupts support to TI TPS65219 PMIC
  regulator: drivers: Add TI TPS65219 PMIC regulators support
  arm64: defconfig: Add tps65219 as modules
  arm64: dts: ti: Add TI TPS65219 PMIC support for AM642 SK board.
  arm64: dts: ti: Add pinmux and irq mapping for TPS65219 external
    interrupts
  arm64: defconfig: Add tps65219 power-button as module

Markus Schneider-Pargmann (5):
  MAINTAINERS: OMAP2+ support, add tps65218-pwrbutton
  regulator: dt-bindings: tps65219: Add power-button property
  mfd: tps65219: Add power-button support
  Input: Add tps65219 interrupt driven powerbutton
  arm64: dts: ti: k3-am642-sk: Enable tps65219 power-button

 .../bindings/regulator/ti,tps65219.yaml       | 178 +++++++
 MAINTAINERS                                   |   4 +
 arch/arm64/boot/dts/ti/k3-am642-sk.dts        | 117 +++++
 arch/arm64/configs/defconfig                  |   3 +
 drivers/input/misc/Kconfig                    |  10 +
 drivers/input/misc/Makefile                   |   1 +
 drivers/input/misc/tps65219-pwrbutton.c       | 150 ++++++
 drivers/mfd/Kconfig                           |  15 +
 drivers/mfd/Makefile                          |   1 +
 drivers/mfd/tps65219.c                        | 438 ++++++++++++++++++
 drivers/regulator/Kconfig                     |   9 +
 drivers/regulator/Makefile                    |   1 +
 drivers/regulator/tps65219-regulator.c        | 414 +++++++++++++++++
 include/linux/mfd/tps65219.h                  | 364 +++++++++++++++
 14 files changed, 1705 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
 create mode 100644 drivers/input/misc/tps65219-pwrbutton.c
 create mode 100644 drivers/mfd/tps65219.c
 create mode 100644 drivers/regulator/tps65219-regulator.c
 create mode 100644 include/linux/mfd/tps65219.h

-- 
2.17.1

[PATCH v1 01/14] MAINTAINERS: OMAP2+ support, add tps65218-pwrbutton

[Jerome Neanne]

From: Markus Schneider-Pargmann <msp@baylibre.com>

The entry for the pwrbutton driver seems to be missing. Add it to the
list for OMAP2+ SUPPORT.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index f679152bdbad..562fb0df4a96 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14704,6 +14704,7 @@ F:	arch/arm/mach-omap2/
 F:	arch/arm/plat-omap/
 F:	drivers/bus/ti-sysc.c
 F:	drivers/i2c/busses/i2c-omap.c
+F:	drivers/input/misc/tps65218-pwrbutton.c
 F:	drivers/irqchip/irq-omap-intc.c
 F:	drivers/mfd/*omap*.c
 F:	drivers/mfd/menelaus.c
-- 
2.17.1

[PATCH v1 02/14] regulator: dt-bindings: Add TI TPS65219 PMIC bindings

[Jerome Neanne]

Add TPS65219 PMIC bindings using json-schema.

Describe required properties and regname-supply.
regname-supply is required when bypass mode is used for a regulator.
Describes regulator topology.

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 .../bindings/regulator/ti,tps65219.yaml       | 151 ++++++++++++++++++
 1 file changed, 151 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/ti,tps65219.yaml

diff --git a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
new file mode 100644
index 000000000000..2c655432b889
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
@@ -0,0 +1,151 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/ti,tps65219.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI tps65219 Power Management Integrated Circuit regulators
+
+maintainers:
+  - Jerome Neanne <jerome.neanne@baylibre.com>
+
+description: |
+  Regulator nodes should be named to buck<number> and ldo<number>.
+
+properties:
+  compatible:
+    enum:
+      - ti,tps65219
+
+  reg:
+    maxItems: 1
+
+  system-power-controller:
+    type: boolean
+    description: Optional property that indicates that this device is
+      controlling system power.
+
+patternProperties:
+  "^buck[1-3]-supply$":
+    description: Input supply phandle of one regulator.
+
+  "^ldo[1-4]-supply$":
+    description: Input supply phandle of one regulator.
+
+  regulators:
+    type: object
+    description: |
+      list of regulators provided by this controller
+
+    patternProperties:
+      "^ldo[1-4]$":
+        type: object
+        $ref: regulator.yaml#
+        description:
+          Properties for single LDO regulator.
+
+        properties:
+          regulator-name:
+            pattern: "^VDD[A-Z0-9_]+$"
+            description:
+              should be "VDDNAME_LDO1", ..., "VDDNAMELDO4"
+
+        unevaluatedProperties: false
+
+      "^buck[1-3]$":
+        type: object
+        $ref: regulator.yaml#
+        description:
+          Properties for single BUCK regulator.
+
+        properties:
+          regulator-name:
+            pattern: "^VDD|VCC[A-Z0-9_]+$"
+            description:
+              should be like "VDD_BUCK1NAME", ..., "VCCBUCK_3NAME"
+
+        unevaluatedProperties: false
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - regulators
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        tps65219: pmic@30 {
+            compatible = "ti,tps65219";
+            reg = <0x30>;
+            buck1-supply = <&vcc_3v3_sys>;
+            buck2-supply = <&vcc_3v3_sys>;
+            buck3-supply = <&vcc_3v3_sys>;
+            ldo1-supply = <&vcc_3v3_sys>;
+            ldo2-supply = <&buck2_reg>;
+            ldo3-supply = <&vcc_3v3_sys>;
+            ldo4-supply = <&vcc_3v3_sys>;
+
+            regulators {
+                buck1_reg: buck1 {
+                    regulator-name = "VDD_CORE";
+                    regulator-min-microvolt = <750000>;
+                    regulator-max-microvolt = <750000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                buck2_reg: buck2 {
+                    regulator-name = "VCC1V8";
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                buck3_reg: buck3 {
+                    regulator-name = "VDD_LPDDR4";
+                    regulator-min-microvolt = <1100000>;
+                    regulator-max-microvolt = <1100000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                ldo1_reg: ldo1 {
+                    regulator-name = "VDDSHV_SD_IO_PMIC";
+                    regulator-min-microvolt = <33000000>;
+                    regulator-max-microvolt = <33000000>;
+                };
+
+                ldo2_reg: ldo2 {
+                    regulator-name = "VDDAR_CORE";
+                    regulator-min-microvolt = <850000>;
+                    regulator-max-microvolt = <850000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                ldo3_reg: ldo3 {
+                    regulator-name = "VDDA_1V8";
+                    regulator-min-microvolt = <18000000>;
+                    regulator-max-microvolt = <18000000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                ldo4_reg: ldo4 {
+                    regulator-name = "VDD_PHY_2V5";
+                    regulator-min-microvolt = <25000000>;
+                    regulator-max-microvolt = <25000000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+            };
+        };
+    };
-- 
2.17.1

Re: [PATCH v1 02/14] regulator: dt-bindings: Add TI TPS65219 PMIC bindings

[Mark Brown]

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On Tue, Jul 19, 2022 at 11:17:30AM +0200, Jerome Neanne wrote:

> +        properties:
> +          regulator-name:
> +            pattern: "^VDD[A-Z0-9_]+$"
> +            description:
> +              should be "VDDNAME_LDO1", ..., "VDDNAMELDO4"

This is broken, regulator-name is for board specific description of the
supply provided by the regulator and should both be optional and have no
constraints on the value.

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[PATCH v1 03/14] regulator: dt-bindings: Add interrupts support to TPS65219 PMIC bindings

[Jerome Neanne]

Add interrupt properties in PMIC TPS65219 bindings

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 .../bindings/regulator/ti,tps65219.yaml       | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
index 2c655432b889..6a60e62a313c 100644
--- a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
+++ b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
@@ -25,6 +25,17 @@ properties:
     description: Optional property that indicates that this device is
       controlling system power.
 
+  interrupts:
+    description: Short-circuit, over-current, under-voltage for regulators, PB interrupts.
+    maxItems: 1
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    description: Specifies the PIN numbers and Flags, as defined in
+      include/dt-bindings/interrupt-controller/irq.h
+    const: 1
+
 patternProperties:
   "^buck[1-3]-supply$":
     description: Input supply phandle of one regulator.
@@ -71,12 +82,16 @@ patternProperties:
 required:
   - compatible
   - reg
+  - interrupts
+  - interrupt-controller
+  - '#interrupt-cells'
   - regulators
 
 additionalProperties: false
 
 examples:
   - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
     i2c {
         #address-cells = <1>;
         #size-cells = <0>;
@@ -92,6 +107,13 @@ examples:
             ldo3-supply = <&vcc_3v3_sys>;
             ldo4-supply = <&vcc_3v3_sys>;
 
+            pinctrl-0 = <&pmic_irq_pins_default>;
+
+            interrupt-parent = <&gic500>;
+            interrupts = <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-controller;
+            #interrupt-cells = <1>;
+
             regulators {
                 buck1_reg: buck1 {
                     regulator-name = "VDD_CORE";
-- 
2.17.1

Re: [PATCH v1 03/14] regulator: dt-bindings: Add interrupts support to TPS65219 PMIC bindings

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 453 bytes --]

On Tue, Jul 19, 2022 at 11:17:31AM +0200, Jerome Neanne wrote:
> Add interrupt properties in PMIC TPS65219 bindings
> 
> Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
> ---
>  .../bindings/regulator/ti,tps65219.yaml       | 22 +++++++++++++++++++
>  1 file changed, 22 insertions(+)

The entire binding document should probably be in MFD if it's going to
have properties for other functions added to it (which is perfectly
reasonable).

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Re: [PATCH v1 03/14] regulator: dt-bindings: Add interrupts support to TPS65219 PMIC bindings

[Rob Herring]

On Tue, Jul 19, 2022 at 11:17:31AM +0200, Jerome Neanne wrote:
> Add interrupt properties in PMIC TPS65219 bindings

Why is this a separate patch? Please make your binding complete. Where 
do these interrupts go to?

> 
> Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
> ---
>  .../bindings/regulator/ti,tps65219.yaml       | 22 +++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
> index 2c655432b889..6a60e62a313c 100644
> --- a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
> +++ b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
> @@ -25,6 +25,17 @@ properties:
>      description: Optional property that indicates that this device is
>        controlling system power.
>  
> +  interrupts:
> +    description: Short-circuit, over-current, under-voltage for regulators, PB interrupts.
> +    maxItems: 1
> +
> +  interrupt-controller: true
> +
> +  '#interrupt-cells':
> +    description: Specifies the PIN numbers and Flags, as defined in
> +      include/dt-bindings/interrupt-controller/irq.h
> +    const: 1
> +
>  patternProperties:
>    "^buck[1-3]-supply$":
>      description: Input supply phandle of one regulator.
> @@ -71,12 +82,16 @@ patternProperties:
>  required:
>    - compatible
>    - reg
> +  - interrupts
> +  - interrupt-controller
> +  - '#interrupt-cells'
>    - regulators
>  
>  additionalProperties: false
>  
>  examples:
>    - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
>      i2c {
>          #address-cells = <1>;
>          #size-cells = <0>;
> @@ -92,6 +107,13 @@ examples:
>              ldo3-supply = <&vcc_3v3_sys>;
>              ldo4-supply = <&vcc_3v3_sys>;
>  
> +            pinctrl-0 = <&pmic_irq_pins_default>;
> +
> +            interrupt-parent = <&gic500>;
> +            interrupts = <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>;
> +            interrupt-controller;
> +            #interrupt-cells = <1>;
> +
>              regulators {
>                  buck1_reg: buck1 {
>                      regulator-name = "VDD_CORE";
> -- 
> 2.17.1
> 
> 

[PATCH v1 04/14] regulator: dt-bindings: tps65219: Add power-button property

[Jerome Neanne]

From: Markus Schneider-Pargmann <msp@baylibre.com>

Add a power-button property to configure the EN/PB/VSENSE pin as a
powerbutton.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 Documentation/devicetree/bindings/regulator/ti,tps65219.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
index 6a60e62a313c..3f7f4c0280c3 100644
--- a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
+++ b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
@@ -36,6 +36,11 @@ properties:
       include/dt-bindings/interrupt-controller/irq.h
     const: 1
 
+  power-button:
+    type: boolean
+    description: Optional property that sets the EN/PB/VSENSE pin to be a
+      power-button.
+
 patternProperties:
   "^buck[1-3]-supply$":
     description: Input supply phandle of one regulator.
-- 
2.17.1

Re: [PATCH v1 04/14] regulator: dt-bindings: tps65219: Add power-button property

[Rob Herring]

On Tue, Jul 19, 2022 at 11:17:32AM +0200, Jerome Neanne wrote:
> From: Markus Schneider-Pargmann <msp@baylibre.com>
> 
> Add a power-button property to configure the EN/PB/VSENSE pin as a
> powerbutton.

Belongs in the first binding patch.

> 
> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
> ---
>  Documentation/devicetree/bindings/regulator/ti,tps65219.yaml | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
> index 6a60e62a313c..3f7f4c0280c3 100644
> --- a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
> +++ b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
> @@ -36,6 +36,11 @@ properties:
>        include/dt-bindings/interrupt-controller/irq.h
>      const: 1
>  
> +  power-button:

ti,power-button

Though doesn't 'system-power-controller' imply this?

> +    type: boolean
> +    description: Optional property that sets the EN/PB/VSENSE pin to be a
> +      power-button.
> +
>  patternProperties:
>    "^buck[1-3]-supply$":
>      description: Input supply phandle of one regulator.
> -- 
> 2.17.1
> 
> 

Re: [PATCH v1 04/14] regulator: dt-bindings: tps65219: Add power-button property

[Markus Schneider-Pargmann]

Hi Rob,

On Wed, Jul 20, 2022 at 05:39:06PM -0600, Rob Herring wrote:
> On Tue, Jul 19, 2022 at 11:17:32AM +0200, Jerome Neanne wrote:
> > From: Markus Schneider-Pargmann <msp@baylibre.com>
> > 
> > Add a power-button property to configure the EN/PB/VSENSE pin as a
> > powerbutton.
> 
> Belongs in the first binding patch.
> 
> > 
> > Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> > Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
> > ---
> >  Documentation/devicetree/bindings/regulator/ti,tps65219.yaml | 5 +++++
> >  1 file changed, 5 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
> > index 6a60e62a313c..3f7f4c0280c3 100644
> > --- a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
> > +++ b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
> > @@ -36,6 +36,11 @@ properties:
> >        include/dt-bindings/interrupt-controller/irq.h
> >      const: 1
> >  
> > +  power-button:
> 
> ti,power-button
> 
> Though doesn't 'system-power-controller' imply this?

No, there is a difference between system-power-controller and
power-button. If you ask, my description is probably not clear enough.
Let me try a new one:

TPS65219 has a multipurpose pin called EN/PB/VSENSE that can be either
EN in which case it functions as an enable pin. It can be VSENSE which
compares the voltages and triggers an automatic on/off request. And it
can be PB in which case it can be configured to trigger an interrupt to
the SoC. ti,power-button reflects exactly the last one of those options
where the board has a button wired to the pin and triggers an interrupt
on pressing it.

I hope that answers your question. We will fix the description in v2.

Thanks,
Markus

> 
> > +    type: boolean
> > +    description: Optional property that sets the EN/PB/VSENSE pin to be a
> > +      power-button.
> > +
> >  patternProperties:
> >    "^buck[1-3]-supply$":
> >      description: Input supply phandle of one regulator.
> > -- 
> > 2.17.1
> > 
> > 

[PATCH v1 05/14] mfd: drivers: Add TI TPS65219 PMIC support

[Jerome Neanne]

The TPS65219 is a power management IC PMIC designed
to supply a wide range of SoCs
in both portable and stationary applications.
Any SoC can control TPS65219 over a standard I2C interface.

It contains the following components:
- Regulators.
- Over Temperature warning and Shut down.
- GPIOs
- Multi Function Pins (MFP)

This patch adds support for tps65219 mfd device. At this time only
the functionalities listed below are made available:

- Regulators probe and functionalities
- warm and cold reset support
- SW shutdown support

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 MAINTAINERS                  |   1 +
 drivers/mfd/Kconfig          |  15 +++
 drivers/mfd/Makefile         |   1 +
 drivers/mfd/tps65219.c       | 215 ++++++++++++++++++++++++++++++
 include/linux/mfd/tps65219.h | 251 +++++++++++++++++++++++++++++++++++
 5 files changed, 483 insertions(+)
 create mode 100644 drivers/mfd/tps65219.c
 create mode 100644 include/linux/mfd/tps65219.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 562fb0df4a96..7786186d9439 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14711,6 +14711,7 @@ F:	drivers/mfd/menelaus.c
 F:	drivers/mfd/palmas.c
 F:	drivers/mfd/tps65217.c
 F:	drivers/mfd/tps65218.c
+F:	drivers/mfd/tps65219.c
 F:	drivers/mfd/tps65910.c
 F:	drivers/mfd/twl-core.[ch]
 F:	drivers/mfd/twl4030*.c
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 3b59456f5545..c66e56374a9a 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1574,6 +1574,21 @@ config MFD_TPS65218
 	  This driver can also be built as a module.  If so, the module
 	  will be called tps65218.
 
+config MFD_TPS65219
+	tristate "TI TPS65219 Power Management chips"
+	depends on I2C && OF
+	select MFD_CORE
+	select REGMAP_I2C
+	select REGMAP_IRQ
+	help
+	  If you say yes here you get support for the TPS65219 series of
+	  Power Management chips.
+	  These include voltage regulators, gpio and other features
+	  that are often used in portable devices.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called tps65219.
+
 config MFD_TPS6586X
 	bool "TI TPS6586x Power Management chips"
 	depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 858cacf659d6..a8ff3d6ea3ab 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -101,6 +101,7 @@ obj-$(CONFIG_TPS6507X)		+= tps6507x.o
 obj-$(CONFIG_MFD_TPS65086)	+= tps65086.o
 obj-$(CONFIG_MFD_TPS65217)	+= tps65217.o
 obj-$(CONFIG_MFD_TPS65218)	+= tps65218.o
+obj-$(CONFIG_MFD_TPS65219)	+= tps65219.o
 obj-$(CONFIG_MFD_TPS65910)	+= tps65910.o
 obj-$(CONFIG_MFD_TPS65912)	+= tps65912-core.o
 obj-$(CONFIG_MFD_TPS65912_I2C)	+= tps65912-i2c.o
diff --git a/drivers/mfd/tps65219.c b/drivers/mfd/tps65219.c
new file mode 100644
index 000000000000..62677c26ed78
--- /dev/null
+++ b/drivers/mfd/tps65219.c
@@ -0,0 +1,215 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for TPS65219 Integrated power management chipsets
+ *
+ * Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
+ */
+
+/* This implementation derived from tps65218 authored by
+ * "J Keerthy <j-keerthy@ti.com>"
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/reboot.h>
+
+#include <linux/mfd/core.h>
+#include <linux/mfd/tps65219.h>
+
+static struct i2c_client *tps65219_i2c_client;
+
+/**
+ * tps65219_warm_reset: issue warm reset to SOC.
+ *
+ * @tps: Device to write to.
+ */
+static int tps65219_warm_reset(struct tps65219 *tps)
+{
+	dev_dbg(tps->dev, "warm reset");
+	pr_flush(1000, true);
+	return regmap_update_bits(tps->regmap, TPS65219_REG_MFP_CTRL,
+				  TPS65219_MFP_WARM_RESET_I2C_CTRL_MASK,
+				  TPS65219_MFP_WARM_RESET_I2C_CTRL_MASK);
+}
+
+/**
+ * tps65219_cold_reset: issue cold reset to SOC.
+ *
+ * @tps: Device to write to.
+ */
+static int tps65219_cold_reset(struct tps65219 *tps)
+{
+	dev_dbg(tps->dev, "cold reset");
+	pr_flush(1000, true);
+	return regmap_update_bits(tps->regmap, TPS65219_REG_MFP_CTRL,
+				  TPS65219_MFP_COLD_RESET_I2C_CTRL_MASK,
+				  TPS65219_MFP_COLD_RESET_I2C_CTRL_MASK);
+}
+
+/**
+ * tps65219_soft_shutdown: issue cold reset to SOC.
+ *
+ * @tps: Device to write to.
+ */
+static int tps65219_soft_shutdown(struct tps65219 *tps)
+{
+	dev_dbg(tps->dev, "software shutdown");
+	pr_flush(1000, true);
+	return regmap_update_bits(tps->regmap, TPS65219_REG_MFP_CTRL,
+				  TPS65219_MFP_I2C_OFF_REQ_MASK,
+				  TPS65219_MFP_I2C_OFF_REQ_MASK);
+}
+
+/**
+ * pmic_rst_restart: trig tps65219 reset to SOC.
+ *
+ * Trigged via notifier
+ */
+static int pmic_rst_restart(struct notifier_block *this,
+			    unsigned long reboot_mode, void *cmd)
+{
+	struct tps65219 *tps;
+
+	tps = container_of(this, struct tps65219, nb);
+	if (!tps) {
+		pr_err("%s: pointer to tps65219 is invalid\n", __func__);
+		return -ENODEV;
+	}
+	if (reboot_mode == REBOOT_WARM)
+		tps65219_warm_reset(tps);
+	else
+		tps65219_cold_reset(tps);
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block pmic_rst_restart_nb = {
+	.notifier_call = pmic_rst_restart,
+	.priority = 200,
+};
+
+/**
+ * pmic_do_poweroff: trig tps65219 regulators power OFF sequence.
+ */
+static void pmic_do_poweroff(void)
+{
+	struct tps65219 *tps;
+
+	tps = dev_get_drvdata(&tps65219_i2c_client->dev);
+	tps65219_soft_shutdown(tps);
+}
+
+static const struct mfd_cell tps65219_cells[] = {
+	{ .name = "tps65219-regulator", },
+};
+
+static const struct regmap_config tps65219_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = TPS65219_REG_FACTORY_CONFIG_2,
+};
+
+static const struct of_device_id of_tps65219_match_table[] = {
+	{ .compatible = "ti,tps65219", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, of_tps65219_match_table);
+
+static int tps65219_probe(struct i2c_client *client,
+			  const struct i2c_device_id *ids)
+{
+	struct tps65219 *tps;
+	int ret;
+	unsigned int chipid;
+	bool sys_pwr;
+
+	tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
+	if (!tps)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, tps);
+	tps->dev = &client->dev;
+	tps->regmap = devm_regmap_init_i2c(client, &tps65219_regmap_config);
+	if (IS_ERR(tps->regmap)) {
+		ret = PTR_ERR(tps->regmap);
+		dev_err(tps->dev, "Failed to allocate register map: %d\n",
+			ret);
+		return ret;
+	}
+
+	ret = regmap_read(tps->regmap, TPS65219_REG_TI_DEV_ID, &chipid);
+	if (ret) {
+		dev_err(tps->dev, "Failed to read device ID: %d\n", ret);
+		return ret;
+	}
+
+	ret = devm_mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65219_cells,
+				   ARRAY_SIZE(tps65219_cells), NULL, 0,
+				   NULL);
+	if (ret) {
+		dev_err(tps->dev, "mfd_add_devices failed: %d\n", ret);
+		return ret;
+	}
+
+	tps->nb = pmic_rst_restart_nb;
+	ret = register_restart_handler(&tps->nb);
+	if (ret) {
+		dev_err(tps->dev, "%s: cannot register restart handler, %d\n",
+			__func__, ret);
+		return -ENODEV;
+	}
+
+	sys_pwr = of_property_read_bool(tps->dev->of_node,
+					"system-power-controller");
+
+	if (sys_pwr) {
+		if (pm_power_off)
+			dev_warn(tps->dev, "Setup as system-power-controller but pm_power_off function already registered, overwriting\n");
+		tps65219_i2c_client = client;
+		pm_power_off = &pmic_do_poweroff;
+	}
+	return ret;
+}
+
+static int tps65219_remove(struct i2c_client *client)
+{
+	struct tps65219 *tps = i2c_get_clientdata(client);
+
+	if (tps65219_i2c_client == client) {
+		pm_power_off = NULL;
+		tps65219_i2c_client = NULL;
+	}
+
+	return unregister_restart_handler(&tps->nb);
+}
+
+static const struct i2c_device_id tps65219_id_table[] = {
+	{ "tps65219", TPS65219 },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, tps65219_id_table);
+
+static struct i2c_driver tps65219_driver = {
+	.driver		= {
+		.name	= "tps65219",
+		.of_match_table = of_tps65219_match_table,
+	},
+	.probe		= tps65219_probe,
+	.id_table       = tps65219_id_table,
+	.remove		= tps65219_remove,
+};
+
+module_i2c_driver(tps65219_driver);
+
+MODULE_AUTHOR("Jerome Neanne <jneanne@baylibre.com>");
+MODULE_DESCRIPTION("TPS65219 chip family multi-function driver");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/tps65219.h b/include/linux/mfd/tps65219.h
new file mode 100644
index 000000000000..e9197ab8bc75
--- /dev/null
+++ b/include/linux/mfd/tps65219.h
@@ -0,0 +1,251 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/mfd/tps65219.h
+ *
+ * Functions to access TPS65219 power management chip.
+ *
+ * Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
+ */
+
+#ifndef __LINUX_MFD_TPS65219_H
+#define __LINUX_MFD_TPS65219_H
+
+#include <linux/i2c.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/bitops.h>
+#include <linux/regmap.h>
+
+#define TPS65219_1V35					1350000
+#define TPS65219_1V8					1800000
+
+/* TPS chip id list */
+#define TPS65219					0xF0
+
+/* I2C ID for TPS65219 part */
+#define TPS65219_I2C_ID					0x24
+
+/* All register addresses */
+#define TPS65219_REG_TI_DEV_ID				0x00
+#define TPS65219_REG_NVM_ID				0x01
+#define TPS65219_REG_ENABLE_CTRL			0x02
+#define TPS65219_REG_BUCKS_CONFIG			0x03
+#define TPS65219_REG_LDO4_VOUT				0x04
+#define TPS65219_REG_LDO3_VOUT				0x05
+#define TPS65219_REG_LDO2_VOUT				0x06
+#define TPS65219_REG_LDO1_VOUT				0x07
+#define TPS65219_REG_BUCK3_VOUT				0x8
+#define TPS65219_REG_BUCK2_VOUT				0x9
+#define TPS65219_REG_BUCK1_VOUT				0xA
+#define TPS65219_REG_LDO4_SEQUENCE_SLOT			0xB
+#define TPS65219_REG_LDO3_SEQUENCE_SLOT			0xC
+#define TPS65219_REG_LDO2_SEQUENCE_SLOT			0xD
+#define TPS65219_REG_LDO1_SEQUENCE_SLOT			0xE
+#define TPS65219_REG_BUCK3_SEQUENCE_SLOT		0xF
+#define TPS65219_REG_BUCK2_SEQUENCE_SLOT		0x10
+#define TPS65219_REG_BUCK1_SEQUENCE_SLOT		0x11
+#define TPS65219_REG_nRST_SEQUENCE_SLOT			0x12
+#define TPS65219_REG_GPIO_SEQUENCE_SLOT			0x13
+#define TPS65219_REG_GPO2_SEQUENCE_SLOT			0x14
+#define TPS65219_REG_GPO1_SEQUENCE_SLOT			0x15
+#define TPS65219_REG_POWER_UP_SLOT_DURATION_1		0x16
+#define TPS65219_REG_POWER_UP_SLOT_DURATION_2		0x17
+#define TPS65219_REG_POWER_UP_SLOT_DURATION_3		0x18
+#define TPS65219_REG_POWER_UP_SLOT_DURATION_4		0x19
+#define TPS65219_REG_POWER_DOWN_SLOT_DURATION_1		0x1A
+#define TPS65219_REG_POWER_DOWN_SLOT_DURATION_2		0x1B
+#define TPS65219_REG_POWER_DOWN_SLOT_DURATION_3		0x1C
+#define TPS65219_REG_POWER_DOWN_SLOT_DURATION_4		0x1D
+#define TPS65219_REG_GENERAL_CONFIG			0x1E
+#define TPS65219_REG_MFP_1_CONFIG			0x1F
+#define TPS65219_REG_MFP_2_CONFIG			0x20
+#define TPS65219_REG_STBY_1_CONFIG			0x21
+#define TPS65219_REG_STBY_2_CONFIG			0x22
+#define TPS65219_REG_OC_DEGL_CONFIG			0x23
+/* 'sub irq' MASK registers */
+#define TPS65219_REG_INT_MASK_UV			0x24
+#define TPS65219_REG_MASK_CONFIG			0x25
+
+#define TPS65219_REG_I2C_ADDRESS_REG			0x26
+#define TPS65219_REG_USER_GENERAL_NVM_STORAGE		0x27
+#define TPS65219_REG_MANUFACTURING_VER			0x28
+#define TPS65219_REG_MFP_CTRL				0x29
+#define TPS65219_REG_DISCHARGE_CONFIG			0x2A
+/* main irq registers */
+#define TPS65219_REG_INT_SOURCE				0x2B
+/* 'sub irq' registers */
+#define TPS65219_REG_INT_LDO_3_4			0x2C
+#define TPS65219_REG_INT_LDO_1_2			0x2D
+#define TPS65219_REG_INT_BUCK_3				0x2E
+#define TPS65219_REG_INT_BUCK_1_2			0x2F
+#define TPS65219_REG_INT_SYSTEM				0x30
+#define TPS65219_REG_INT_RV				0x31
+#define TPS65219_REG_INT_TIMEOUT_RV_SD			0x32
+#define TPS65219_REG_INT_PB				0x33
+
+#define TPS65219_REG_USER_NVM_CMD			0x34
+#define TPS65219_REG_POWER_UP_STATUS			0x35
+#define TPS65219_REG_SPARE_2				0x36
+#define TPS65219_REG_SPARE_3				0x37
+#define TPS65219_REG_FACTORY_CONFIG_2			0x41
+
+/* Register field definitions */
+#define TPS65219_DEVID_REV_MASK				GENMASK(7, 0)
+#define TPS65219_BUCKS_LDOS_VOUT_VSET_MASK		GENMASK(5, 0)
+#define TPS65219_BUCKS_UV_THR_SEL_MASK			BIT(6)
+#define TPS65219_BUCKS_BW_SEL_MASK			BIT(7)
+#define LDO_BYP_SHIFT					6
+#define TPS65219_LDOS_BYP_CONFIG_MASK			BIT(LDO_BYP_SHIFT)
+#define TPS65219_LDOS_LSW_CONFIG_MASK			BIT(7)
+/* Regulators enable control */
+#define TPS65219_ENABLE_BUCK1_EN_MASK			BIT(0)
+#define TPS65219_ENABLE_BUCK2_EN_MASK			BIT(1)
+#define TPS65219_ENABLE_BUCK3_EN_MASK			BIT(2)
+#define TPS65219_ENABLE_LDO1_EN_MASK			BIT(3)
+#define TPS65219_ENABLE_LDO2_EN_MASK			BIT(4)
+#define TPS65219_ENABLE_LDO3_EN_MASK			BIT(5)
+#define TPS65219_ENABLE_LDO4_EN_MASK			BIT(6)
+/* power ON-OFF sequence slot */
+#define TPS65219_BUCKS_LDOS_SEQUENCE_OFF_SLOT_MASK	GENMASK(3, 0)
+#define TPS65219_BUCKS_LDOS_SEQUENCE_ON_SLOT_MASK	GENMASK(7, 4)
+/* TODO: Not needed, same mapping as TPS65219_ENABLE_REGNAME_EN, factorize */
+#define TPS65219_STBY1_BUCK1_STBY_EN_MASK		BIT(0)
+#define TPS65219_STBY1_BUCK2_STBY_EN_MASK		BIT(1)
+#define TPS65219_STBY1_BUCK3_STBY_EN_MASK		BIT(2)
+#define TPS65219_STBY1_LDO1_STBY_EN_MASK		BIT(3)
+#define TPS65219_STBY1_LDO2_STBY_EN_MASK		BIT(4)
+#define TPS65219_STBY1_LDO3_STBY_EN_MASK		BIT(5)
+#define TPS65219_STBY1_LDO4_STBY_EN_MASK		BIT(6)
+/* STBY_2 config */
+#define TPS65219_STBY2_GPO1_STBY_EN_MASK		BIT(0)
+#define TPS65219_STBY2_GPO2_STBY_EN_MASK		BIT(1)
+#define TPS65219_STBY2_GPIO_STBY_EN_MASK		BIT(2)
+/* MFP Control */
+#define TPS65219_MFP_I2C_OFF_REQ_MASK			BIT(0)
+#define TPS65219_MFP_STBY_I2C_CTRL_MASK			BIT(1)
+#define TPS65219_MFP_COLD_RESET_I2C_CTRL_MASK		BIT(2)
+#define TPS65219_MFP_WARM_RESET_I2C_CTRL_MASK		BIT(3)
+#define TPS65219_MFP_GPIO_STATUS_MASK			BIT(4)
+/* MFP_1 Config */
+#define TPS65219_MFP_1_VSEL_DDR_SEL_MASK		BIT(0)
+#define TPS65219_MFP_1_VSEL_SD_POL_MASK			BIT(1)
+#define TPS65219_MFP_1_VSEL_RAIL_MASK			BIT(2)
+/* MFP_2 Config */
+#define TPS65219_MFP_2_MODE_STBY_MASK			GENMASK(1, 0)
+#define TPS65219_MFP_2_MODE_RESET_MASK			BIT(2)
+#define TPS65219_MFP_2_EN_PB_VSENSE_DEGL_MASK		BIT(3)
+#define TPS65219_MFP_2_EN_PB_VSENSE_MASK		GENMASK(5, 4)
+#define TPS65219_MFP_2_WARM_COLD_RESET_MASK		BIT(6)
+#define TPS65219_MFP_2_PU_ON_FSD_MASK			BIT(7)
+#define TPS65219_MFP_2_EN				0
+#define TPS65219_MFP_2_PB				BIT(4)
+#define TPS65219_MFP_2_VSENSE				BIT(5)
+/* MASK_UV Config */
+#define TPS65219_REG_MASK_UV_LDO1_UV_MASK		BIT(0)
+#define TPS65219_REG_MASK_UV_LDO2_UV_MASK		BIT(1)
+#define TPS65219_REG_MASK_UV_LDO3_UV_MASK		BIT(2)
+#define TPS65219_REG_MASK_UV_LDO4_UV_MASK		BIT(3)
+#define TPS65219_REG_MASK_UV_BUCK1_UV_MASK		BIT(4)
+#define TPS65219_REG_MASK_UV_BUCK2_UV_MASK		BIT(5)
+#define TPS65219_REG_MASK_UV_BUCK3_UV_MASK		BIT(6)
+#define TPS65219_REG_MASK_UV_RETRY_MASK			BIT(7)
+/* MASK Config */
+// SENSOR_N_WARM_MASK already defined in Thermal
+#define TPS65219_REG_MASK_INT_FOR_RV_MASK		BIT(4)
+#define TPS65219_REG_MASK_EFFECT_MASK			GENMASK(2, 1)
+#define TPS65219_REG_MASK_INT_FOR_PB_MASK		BIT(7)
+/* UnderVoltage - Short to GND - OverCurrent*/
+/* LDO3-4 */
+#define TPS65219_INT_LDO3_SCG_MASK			BIT(0)
+#define TPS65219_INT_LDO3_OC_MASK			BIT(1)
+#define TPS65219_INT_LDO3_UV_MASK			BIT(2)
+#define TPS65219_INT_LDO4_SCG_MASK			BIT(3)
+#define TPS65219_INT_LDO4_OC_MASK			BIT(4)
+#define TPS65219_INT_LDO4_UV_MASK			BIT(5)
+/* LDO1-2 */
+#define TPS65219_INT_LDO1_SCG_MASK			BIT(0)
+#define TPS65219_INT_LDO1_OC_MASK			BIT(1)
+#define TPS65219_INT_LDO1_UV_MASK			BIT(2)
+#define TPS65219_INT_LDO2_SCG_MASK			BIT(3)
+#define TPS65219_INT_LDO2_OC_MASK			BIT(4)
+#define TPS65219_INT_LDO2_UV_MASK			BIT(5)
+/* BUCK3 */
+#define TPS65219_INT_BUCK3_SCG_MASK			BIT(0)
+#define TPS65219_INT_BUCK3_OC_MASK			BIT(1)
+#define TPS65219_INT_BUCK3_NEG_OC_MASK			BIT(2)
+#define TPS65219_INT_BUCK3_UV_MASK			BIT(3)
+/* BUCK1-2 */
+#define TPS65219_INT_BUCK1_SCG_MASK			BIT(0)
+#define TPS65219_INT_BUCK1_OC_MASK			BIT(1)
+#define TPS65219_INT_BUCK1_NEG_OC_MASK			BIT(2)
+#define TPS65219_INT_BUCK1_UV_MASK			BIT(3)
+#define TPS65219_INT_BUCK2_SCG_MASK			BIT(4)
+#define TPS65219_INT_BUCK2_OC_MASK			BIT(5)
+#define TPS65219_INT_BUCK2_NEG_OC_MASK			BIT(6)
+#define TPS65219_INT_BUCK2_UV_MASK			BIT(7)
+/* Thermal Sensor  */
+#define TPS65219_INT_SENSOR_3_WARM_MASK			BIT(0)
+#define TPS65219_INT_SENSOR_2_WARM_MASK			BIT(1)
+#define TPS65219_INT_SENSOR_1_WARM_MASK			BIT(2)
+#define TPS65219_INT_SENSOR_0_WARM_MASK			BIT(3)
+#define TPS65219_INT_SENSOR_3_HOT_MASK			BIT(4)
+#define TPS65219_INT_SENSOR_2_HOT_MASK			BIT(5)
+#define TPS65219_INT_SENSOR_1_HOT_MASK			BIT(6)
+#define TPS65219_INT_SENSOR_0_HOT_MASK			BIT(7)
+/* Residual Voltage */
+#define TPS65219_INT_BUCK1_RV_MASK			BIT(0)
+#define TPS65219_INT_BUCK2_RV_MASK			BIT(1)
+#define TPS65219_INT_BUCK3_RV_MASK			BIT(2)
+#define TPS65219_INT_LDO1_RV_MASK			BIT(3)
+#define TPS65219_INT_LDO2_RV_MASK			BIT(4)
+#define TPS65219_INT_LDO3_RV_MASK			BIT(5)
+#define TPS65219_INT_LDO4_RV_MASK			BIT(6)
+/* Residual Voltage ShutDown */
+#define TPS65219_INT_BUCK1_RV_SD_MASK			BIT(0)
+#define TPS65219_INT_BUCK2_RV_SD_MASK			BIT(1)
+#define TPS65219_INT_BUCK3_RV_SD_MASK			BIT(2)
+#define TPS65219_INT_LDO1_RV_SD_MASK			BIT(3)
+#define TPS65219_INT_LDO2_RV_SD_MASK			BIT(4)
+#define TPS65219_INT_LDO3_RV_SD_MASK			BIT(5)
+#define TPS65219_INT_LDO4_RV_SD_MASK			BIT(6)
+#define TPS65219_INT_TIMEOUT_MASK			BIT(7)
+/* Power Button */
+#define TPS65219_INT_PB_FALLING_EDGE_DET_MASK		BIT(0)
+#define TPS65219_INT_PB_RISING_EDGE_DET_MASK		BIT(1)
+#define TPS65219_INT_PB_REAL_TIME_STATUS_MASK		BIT(2)
+
+enum tps65219_regulator_id {
+	/* DCDC's */
+	TPS65219_BUCK_1,
+	TPS65219_BUCK_2,
+	TPS65219_BUCK_3,
+	/* LDOs */
+	TPS65219_LDO_1,
+	TPS65219_LDO_2,
+	TPS65219_LDO_3,
+	TPS65219_LDO_4,
+};
+
+#define TPS65219_MAX_REG_ID		TPS65219_LDO_4
+
+/* Number of step-down converters available */
+#define TPS65219_NUM_DCDC		3
+/* Number of LDO voltage regulators available */
+#define TPS65219_NUM_LDO		4
+/* Number of total regulators available */
+#define TPS65219_NUM_REGULATOR		(TPS65219_NUM_DCDC + TPS65219_NUM_LDO)
+
+/**
+ * struct tps65219 - tps65219 sub-driver chip access routines
+ *
+ * Device data may be used to access the TPS65219 chip
+ */
+struct tps65219 {
+	struct device *dev;
+	unsigned int id;
+	struct regulator_desc desc[TPS65219_NUM_REGULATOR];
+	struct regmap *regmap;
+	struct notifier_block nb;
+};
+
+#endif /*  __LINUX_MFD_TPS65219_H */
-- 
2.17.1

[PATCH v1 06/14] mfd: drivers: Add interrupts support to TI TPS65219 PMIC

[Jerome Neanne]

Add TPS65219 support for interrupts through regmap_irq_chip

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 drivers/mfd/tps65219.c       | 217 ++++++++++++++++++++++++++++++++++-
 include/linux/mfd/tps65219.h | 113 ++++++++++++++++++
 2 files changed, 328 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/tps65219.c b/drivers/mfd/tps65219.c
index 62677c26ed78..b01a62c09885 100644
--- a/drivers/mfd/tps65219.c
+++ b/drivers/mfd/tps65219.c
@@ -108,8 +108,73 @@ static void pmic_do_poweroff(void)
 	tps65219_soft_shutdown(tps);
 }
 
-static const struct mfd_cell tps65219_cells[] = {
-	{ .name = "tps65219-regulator", },
+static const struct resource tps65219_pwrbutton_resources[] = {
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_PB_FALLING_EDGE_DETECT, "falling"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_PB_RISING_EDGE_DETECT, "rising"),
+};
+
+static const struct resource tps65219_regulator_resources[] = {
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO3_SCG, "LDO3_SCG"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO3_OC, "LDO3_OC"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO3_UV, "LDO3_UV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO4_SCG, "LDO4_SCG"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO4_OC, "LDO4_OC"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO4_UV, "LDO4_UV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO1_SCG, "LDO1_SCG"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO1_OC, "LDO1_OC"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO1_UV, "LDO1_UV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO2_SCG, "LDO2_SCG"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO2_OC, "LDO2_OC"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO2_UV, "LDO2_UV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_SCG, "BUCK3_SCG"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_OC, "BUCK3_OC"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_NEG_OC, "BUCK3_NEG_OC"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_UV, "BUCK3_UV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_SCG, "BUCK1_SCG"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_OC, "BUCK1_OC"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_NEG_OC, "BUCK1_NEG_OC"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_UV, "BUCK1_UV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_SCG, "BUCK2_SCG"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_OC, "BUCK2_OC"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_NEG_OC, "BUCK2_NEG_OC"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_UV, "BUCK2_UV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_RV, "BUCK1_RV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_RV, "BUCK2_RV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_RV, "BUCK3_RV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO1_RV, "LDO1_RV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO2_RV, "LDO2_RV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO3_RV, "LDO3_RV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO4_RV, "LDO4_RV"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_RV_SD, "BUCK1_RV_SD"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_RV_SD, "BUCK2_RV_SD"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_RV_SD, "BUCK3_RV_SD"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO1_RV_SD, "LDO1_RV_SD"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO2_RV_SD, "LDO2_RV_SD"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO3_RV_SD, "LDO3_RV_SD"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO4_RV_SD, "LDO4_RV_SD"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_TIMEOUT, "TIMEOUT"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_3_WARM, "SENSOR_3_WARM"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_2_WARM, "SENSOR_2_WARM"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_1_WARM, "SENSOR_1_WARM"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_0_WARM, "SENSOR_0_WARM"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_3_HOT, "SENSOR_3_HOT"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_2_HOT, "SENSOR_2_HOT"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_1_HOT, "SENSOR_1_HOT"),
+	DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_0_HOT, "SENSOR_0_HOT"),
+};
+
+#define TPS65219_MAX_CELLS 2
+
+static const struct mfd_cell tps65219_regulator_cell = {
+	.name = "tps65219-regulator",
+	.resources = tps65219_regulator_resources,
+	.num_resources = ARRAY_SIZE(tps65219_regulator_resources),
+};
+
+static const struct mfd_cell tps65219_pwrbutton_cell = {
+	.name = "tps65219-pwrbutton",
+	.resources = tps65219_pwrbutton_resources,
+	.num_resources = ARRAY_SIZE(tps65219_pwrbutton_resources),
 };
 
 static const struct regmap_config tps65219_regmap_config = {
@@ -118,6 +183,147 @@ static const struct regmap_config tps65219_regmap_config = {
 	.max_register = TPS65219_REG_FACTORY_CONFIG_2,
 };
 
+/*
+ * Mapping of main IRQ register bits to sub-IRQ register offsets so that we can
+ * access corect sub-IRQ registers based on bits that are set in main IRQ
+ * register.
+ */
+/* Timeout Residual Voltage Shutdown */
+static unsigned int bit0_offsets[] = {TPS65219_TO_RV_POS};
+static unsigned int bit1_offsets[] = {TPS65219_RV_POS};	/* Residual Voltage */
+static unsigned int bit2_offsets[] = {TPS65219_SYS_POS};	/* System */
+static unsigned int bit3_offsets[] = {TPS65219_BUCK_1_2_POS};	/* Buck 1-2 */
+static unsigned int bit4_offsets[] = {TPS65219_BUCK_3_POS};	/* Buck 3 */
+static unsigned int bit5_offsets[] = {TPS65219_LDO_1_2_POS};	/* LDO 1-2 */
+static unsigned int bit6_offsets[] = {TPS65219_LDO_3_4_POS};	/* LDO 3-4 */
+static unsigned int bit7_offsets[] = {TPS65219_PB_POS};	/* Power Button */
+
+static struct regmap_irq_sub_irq_map tps65219_sub_irq_offsets[] = {
+	REGMAP_IRQ_MAIN_REG_OFFSET(bit0_offsets),
+	REGMAP_IRQ_MAIN_REG_OFFSET(bit1_offsets),
+	REGMAP_IRQ_MAIN_REG_OFFSET(bit2_offsets),
+	REGMAP_IRQ_MAIN_REG_OFFSET(bit3_offsets),
+	REGMAP_IRQ_MAIN_REG_OFFSET(bit4_offsets),
+	REGMAP_IRQ_MAIN_REG_OFFSET(bit5_offsets),
+	REGMAP_IRQ_MAIN_REG_OFFSET(bit6_offsets),
+	REGMAP_IRQ_MAIN_REG_OFFSET(bit7_offsets),
+};
+
+static struct regmap_irq tps65219_irqs[] = {
+	REGMAP_IRQ_REG(TPS65219_INT_LDO3_SCG, TPS65219_LDO_3_4_POS,
+		       TPS65219_INT_LDO3_SCG_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO3_OC,
+		       TPS65219_LDO_3_4_POS, TPS65219_INT_LDO3_OC_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO3_UV, TPS65219_LDO_3_4_POS,
+		       TPS65219_INT_LDO3_UV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO4_SCG, TPS65219_LDO_3_4_POS,
+		       TPS65219_INT_LDO4_SCG_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO4_OC, TPS65219_LDO_3_4_POS,
+		       TPS65219_INT_LDO4_OC_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO4_UV, TPS65219_LDO_3_4_POS,
+		       TPS65219_INT_LDO4_UV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO1_SCG,
+		       TPS65219_LDO_1_2_POS, TPS65219_INT_LDO1_SCG_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO1_OC, TPS65219_LDO_1_2_POS,
+		       TPS65219_INT_LDO1_OC_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO1_UV, TPS65219_LDO_1_2_POS,
+		       TPS65219_INT_LDO1_UV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO2_SCG, TPS65219_LDO_1_2_POS,
+		       TPS65219_INT_LDO2_SCG_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO2_OC, TPS65219_LDO_1_2_POS,
+		       TPS65219_INT_LDO2_OC_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO2_UV, TPS65219_LDO_1_2_POS,
+		       TPS65219_INT_LDO2_UV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK3_SCG, TPS65219_BUCK_3_POS,
+		       TPS65219_INT_BUCK3_SCG_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK3_OC, TPS65219_BUCK_3_POS,
+		       TPS65219_INT_BUCK3_OC_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK3_NEG_OC, TPS65219_BUCK_3_POS,
+		       TPS65219_INT_BUCK3_NEG_OC_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK3_UV, TPS65219_BUCK_3_POS,
+		       TPS65219_INT_BUCK3_UV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK2_SCG, TPS65219_BUCK_1_2_POS,
+		       TPS65219_INT_BUCK2_SCG_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK2_OC, TPS65219_BUCK_1_2_POS,
+		       TPS65219_INT_BUCK2_OC_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK2_NEG_OC, TPS65219_BUCK_1_2_POS,
+		       TPS65219_INT_BUCK2_NEG_OC_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK2_UV, TPS65219_BUCK_1_2_POS,
+		       TPS65219_INT_BUCK2_UV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK1_SCG, TPS65219_BUCK_1_2_POS,
+		       TPS65219_INT_BUCK1_SCG_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK1_OC, TPS65219_BUCK_1_2_POS,
+		       TPS65219_INT_BUCK1_OC_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK1_NEG_OC, TPS65219_BUCK_1_2_POS,
+		       TPS65219_INT_BUCK1_NEG_OC_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK1_UV, TPS65219_BUCK_1_2_POS,
+		       TPS65219_INT_BUCK1_UV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_SENSOR_3_WARM,
+		       TPS65219_SYS_POS, TPS65219_INT_SENSOR_3_WARM_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_SENSOR_2_WARM, TPS65219_SYS_POS,
+		       TPS65219_INT_SENSOR_2_WARM_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_SENSOR_1_WARM, TPS65219_SYS_POS,
+		       TPS65219_INT_SENSOR_1_WARM_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_SENSOR_0_WARM, TPS65219_SYS_POS,
+		       TPS65219_INT_SENSOR_0_WARM_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_SENSOR_3_HOT, TPS65219_SYS_POS,
+		       TPS65219_INT_SENSOR_3_HOT_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_SENSOR_2_HOT, TPS65219_SYS_POS,
+		       TPS65219_INT_SENSOR_2_HOT_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_SENSOR_1_HOT, TPS65219_SYS_POS,
+		       TPS65219_INT_SENSOR_1_HOT_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_SENSOR_0_HOT, TPS65219_SYS_POS,
+		       TPS65219_INT_SENSOR_0_HOT_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK1_RV, TPS65219_RV_POS,
+		       TPS65219_INT_BUCK1_RV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK2_RV, TPS65219_RV_POS,
+		       TPS65219_INT_BUCK2_RV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK3_RV, TPS65219_RV_POS,
+		       TPS65219_INT_BUCK3_RV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO1_RV, TPS65219_RV_POS,
+		       TPS65219_INT_LDO1_RV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO2_RV, TPS65219_RV_POS,
+		       TPS65219_INT_LDO2_RV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO3_RV, TPS65219_RV_POS,
+		       TPS65219_INT_LDO3_RV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO4_RV, TPS65219_RV_POS,
+		       TPS65219_INT_LDO4_RV_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK1_RV_SD,
+		       TPS65219_TO_RV_POS, TPS65219_INT_BUCK1_RV_SD_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK2_RV_SD,
+		       TPS65219_TO_RV_POS, TPS65219_INT_BUCK2_RV_SD_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_BUCK3_RV_SD, TPS65219_TO_RV_POS,
+		       TPS65219_INT_BUCK3_RV_SD_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO1_RV_SD, TPS65219_TO_RV_POS,
+		       TPS65219_INT_LDO1_RV_SD_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO2_RV_SD, TPS65219_TO_RV_POS,
+		       TPS65219_INT_LDO2_RV_SD_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO3_RV_SD,
+		       TPS65219_TO_RV_POS, TPS65219_INT_LDO3_RV_SD_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_LDO4_RV_SD, TPS65219_TO_RV_POS,
+		       TPS65219_INT_LDO4_RV_SD_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_TIMEOUT, TPS65219_TO_RV_POS,
+		       TPS65219_INT_TIMEOUT_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_PB_FALLING_EDGE_DETECT,
+		       TPS65219_PB_POS, TPS65219_INT_PB_FALLING_EDGE_DET_MASK),
+	REGMAP_IRQ_REG(TPS65219_INT_PB_RISING_EDGE_DETECT, TPS65219_PB_POS,
+		       TPS65219_INT_PB_RISING_EDGE_DET_MASK),
+};
+
+static struct regmap_irq_chip tps65219_irq_chip = {
+	.name = "tps65219_irq",
+	.main_status = TPS65219_REG_INT_SOURCE,
+	.num_main_regs = 1,
+	.num_main_status_bits = 8,
+	.irqs = tps65219_irqs,
+	.num_irqs = ARRAY_SIZE(tps65219_irqs),
+	.status_base = TPS65219_REG_INT_LDO_3_4,
+	.ack_base = TPS65219_REG_INT_LDO_3_4,
+	.clear_ack = 1,
+	.num_regs = 8,
+	.sub_reg_offsets = &tps65219_sub_irq_offsets[0],
+};
+
 static const struct of_device_id of_tps65219_match_table[] = {
 	{ .compatible = "ti,tps65219", },
 	{}
@@ -138,6 +344,7 @@ static int tps65219_probe(struct i2c_client *client,
 
 	i2c_set_clientdata(client, tps);
 	tps->dev = &client->dev;
+	tps->irq = client->irq;
 	tps->regmap = devm_regmap_init_i2c(client, &tps65219_regmap_config);
 	if (IS_ERR(tps->regmap)) {
 		ret = PTR_ERR(tps->regmap);
@@ -146,6 +353,12 @@ static int tps65219_probe(struct i2c_client *client,
 		return ret;
 	}
 
+	ret = devm_regmap_add_irq_chip(&client->dev, tps->regmap, tps->irq,
+				       IRQF_ONESHOT, 0, &tps65219_irq_chip,
+				       &tps->irq_data);
+	if (ret)
+		return ret;
+
 	ret = regmap_read(tps->regmap, TPS65219_REG_TI_DEV_ID, &chipid);
 	if (ret) {
 		dev_err(tps->dev, "Failed to read device ID: %d\n", ret);
diff --git a/include/linux/mfd/tps65219.h b/include/linux/mfd/tps65219.h
index e9197ab8bc75..8cecaf9bc682 100644
--- a/include/linux/mfd/tps65219.h
+++ b/include/linux/mfd/tps65219.h
@@ -214,6 +214,104 @@
 #define TPS65219_INT_PB_RISING_EDGE_DET_MASK		BIT(1)
 #define TPS65219_INT_PB_REAL_TIME_STATUS_MASK		BIT(2)
 
+/* Masks for main IRQ register bits */
+enum {
+	TPS65219_INT_TIMEOUT_RV_SD,
+#define TPS65219_INT_TIMEOUT_RV_SD_MASK BIT(TPS65219_INT_TIMEOUT_RV_SD)
+	TPS65219_INT_RV,
+#define TPS65219_INT_RV_MASK BIT(TPS65219_INT_RV)
+	TPS65219_INT_SYSTEM,
+#define TPS65219_INT_SYSTEM_MASK BIT(TPS65219_INT_SYSTEM)
+	TPS65219_INT_BUCK_1_2,
+#define TPS65219_INT_BUCK_1_2_MASK BIT(TPS65219_INT_BUCK_1_2)
+	TPS65219_INT_BUCK_3,
+#define TPS65219_INT_BUCK_3_MASK BIT(TPS65219_INT_BUCK_3)
+	TPS65219_INT_LDO_1_2,
+#define TPS65219_INT_LDO_1_2_MASK BIT(TPS65219_INT_LDO_1_2)
+	TPS65219_INT_LDO_3_4,
+#define TPS65219_INT_LDO_3_4_MASK BIT(TPS65219_LDO_3_4)
+	TPS65219_INT_PB,
+#define TPS65219_INT_PB_MASK BIT(TPS65219_INT_PB)
+};
+
+/* Timeout Residual Voltage Shutdown */
+#define TPS65219_TO_RV_POS 6
+/* Residual Voltage */
+#define TPS65219_RV_POS 5
+/* System */
+#define TPS65219_SYS_POS 4
+/* Buck 1-2 */
+#define TPS65219_BUCK_1_2_POS 3
+/* Buck 3 */
+#define TPS65219_BUCK_3_POS 2
+/* LDO 1-2 */
+#define TPS65219_LDO_1_2_POS 1
+/* LDO 3-4 */
+#define TPS65219_LDO_3_4_POS 0
+/* Power Button */
+#define TPS65219_PB_POS 7
+
+/* IRQs */
+enum {
+	/* LDO3-4 register IRQs */
+	TPS65219_INT_LDO3_SCG,
+	TPS65219_INT_LDO3_OC,
+	TPS65219_INT_LDO3_UV,
+	TPS65219_INT_LDO4_SCG,
+	TPS65219_INT_LDO4_OC,
+	TPS65219_INT_LDO4_UV,
+	/* LDO1-2 */
+	TPS65219_INT_LDO1_SCG,
+	TPS65219_INT_LDO1_OC,
+	TPS65219_INT_LDO1_UV,
+	TPS65219_INT_LDO2_SCG,
+	TPS65219_INT_LDO2_OC,
+	TPS65219_INT_LDO2_UV,
+	/* BUCK3 */
+	TPS65219_INT_BUCK3_SCG,
+	TPS65219_INT_BUCK3_OC,
+	TPS65219_INT_BUCK3_NEG_OC,
+	TPS65219_INT_BUCK3_UV,
+	/* BUCK1-2 */
+	TPS65219_INT_BUCK1_SCG,
+	TPS65219_INT_BUCK1_OC,
+	TPS65219_INT_BUCK1_NEG_OC,
+	TPS65219_INT_BUCK1_UV,
+	TPS65219_INT_BUCK2_SCG,
+	TPS65219_INT_BUCK2_OC,
+	TPS65219_INT_BUCK2_NEG_OC,
+	TPS65219_INT_BUCK2_UV,
+	/* Thermal Sensor  */
+	TPS65219_INT_SENSOR_3_WARM,
+	TPS65219_INT_SENSOR_2_WARM,
+	TPS65219_INT_SENSOR_1_WARM,
+	TPS65219_INT_SENSOR_0_WARM,
+	TPS65219_INT_SENSOR_3_HOT,
+	TPS65219_INT_SENSOR_2_HOT,
+	TPS65219_INT_SENSOR_1_HOT,
+	TPS65219_INT_SENSOR_0_HOT,
+	/* Residual Voltage */
+	TPS65219_INT_BUCK1_RV,
+	TPS65219_INT_BUCK2_RV,
+	TPS65219_INT_BUCK3_RV,
+	TPS65219_INT_LDO1_RV,
+	TPS65219_INT_LDO2_RV,
+	TPS65219_INT_LDO3_RV,
+	TPS65219_INT_LDO4_RV,
+	/* Residual Voltage ShutDown */
+	TPS65219_INT_BUCK1_RV_SD,
+	TPS65219_INT_BUCK2_RV_SD,
+	TPS65219_INT_BUCK3_RV_SD,
+	TPS65219_INT_LDO1_RV_SD,
+	TPS65219_INT_LDO2_RV_SD,
+	TPS65219_INT_LDO3_RV_SD,
+	TPS65219_INT_LDO4_RV_SD,
+	TPS65219_INT_TIMEOUT,
+	/* Power Button */
+	TPS65219_INT_PB_FALLING_EDGE_DETECT,
+	TPS65219_INT_PB_RISING_EDGE_DETECT,
+};
+
 enum tps65219_regulator_id {
 	/* DCDC's */
 	TPS65219_BUCK_1,
@@ -235,6 +333,19 @@ enum tps65219_regulator_id {
 /* Number of total regulators available */
 #define TPS65219_NUM_REGULATOR		(TPS65219_NUM_DCDC + TPS65219_NUM_LDO)
 
+/* Define the TPS65219 IRQ numbers */
+enum tps65219_irqs {
+	/* INT source registers */
+	TPS65219_TO_RV_SD_SET_IRQ,
+	TPS65219_RV_SET_IRQ,
+	TPS65219_SYS_SET_IRQ,
+	TPS65219_BUCK_1_2_SET_IRQ,
+	TPS65219_BUCK_3_SET_IRQ,
+	TPS65219_LDO_1_2_SET_IRQ,
+	TPS65219_LDO_3_4_SET_IRQ,
+	TPS65219_PB_SET_IRQ,
+};
+
 /**
  * struct tps65219 - tps65219 sub-driver chip access routines
  *
@@ -243,6 +354,8 @@ enum tps65219_regulator_id {
 struct tps65219 {
 	struct device *dev;
 	unsigned int id;
+	int irq;
+	struct regmap_irq_chip_data *irq_data;
 	struct regulator_desc desc[TPS65219_NUM_REGULATOR];
 	struct regmap *regmap;
 	struct notifier_block nb;
-- 
2.17.1

[PATCH v1 07/14] mfd: tps65219: Add power-button support

[Jerome Neanne]

From: Markus Schneider-Pargmann <msp@baylibre.com>

Using a power-button on the EN/PB/VSENSE pin of TPS65219 is optional, so
this driver adds the mfd cell for tps65219-pwrbutton only if needed. Two
interrupts are passed to the driver.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 drivers/mfd/tps65219.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/tps65219.c b/drivers/mfd/tps65219.c
index b01a62c09885..f9bfc38240ea 100644
--- a/drivers/mfd/tps65219.c
+++ b/drivers/mfd/tps65219.c
@@ -336,7 +336,10 @@ static int tps65219_probe(struct i2c_client *client,
 	struct tps65219 *tps;
 	int ret;
 	unsigned int chipid;
+	bool pwr_button;
 	bool sys_pwr;
+	struct mfd_cell cells[TPS65219_MAX_CELLS];
+	int nr_cells = 0;
 
 	tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
 	if (!tps)
@@ -365,9 +368,16 @@ static int tps65219_probe(struct i2c_client *client,
 		return ret;
 	}
 
-	ret = devm_mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65219_cells,
-				   ARRAY_SIZE(tps65219_cells), NULL, 0,
-				   NULL);
+	memcpy(&cells[nr_cells++], &tps65219_regulator_cell,
+	       sizeof(tps65219_regulator_cell));
+	pwr_button = of_property_read_bool(tps->dev->of_node, "power-button");
+	if (pwr_button)
+		memcpy(&cells[nr_cells++], &tps65219_pwrbutton_cell,
+		       sizeof(tps65219_pwrbutton_cell));
+
+	ret = devm_mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, cells,
+				   nr_cells, NULL, 0,
+				   regmap_irq_get_domain(tps->irq_data));
 	if (ret) {
 		dev_err(tps->dev, "mfd_add_devices failed: %d\n", ret);
 		return ret;
-- 
2.17.1

[PATCH v1 08/14] regulator: drivers: Add TI TPS65219 PMIC regulators support

[Jerome Neanne]

The regulators set consists of 3 bucks DCDCs and 4 LDOs. The output
voltages are configurable and are meant to supply power to the
main processor and other components.

Validation:
Visual check: cat /sys/kernel/debug/regulator/regulator_summary
Validation: userspace-consumer and virtual-regulator required
to test further

Enable/Disable:
cat /sys/devices/platform/userspace-consumer-VDDSHV_SD_IO_PMIC/state
echo disabled > /sys/devices/platform/
userspace-consumer-VDDSHV_SD_IO_PMIC/state
echo enabled > /sys/devices/platform/
userspace-consumer-VDDSHV_SD_IO_PMIC/state

Change voltage:
cat /sys/devices/platform/regulator-virtual-ldo1/min_microvolts
echo 1000000 > /sys/devices/platform/regulator-virtual-ldo1/
min_microvolts
echo 3000000 > /sys/devices/platform/regulator-virtual-ldo1/
max_microvolts

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 MAINTAINERS                            |   1 +
 drivers/regulator/Kconfig              |   9 +
 drivers/regulator/Makefile             |   1 +
 drivers/regulator/tps65219-regulator.c | 414 +++++++++++++++++++++++++
 4 files changed, 425 insertions(+)
 create mode 100644 drivers/regulator/tps65219-regulator.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 7786186d9439..2e6ee583f3ff 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14721,6 +14721,7 @@ F:	drivers/regulator/palmas-regulator*.c
 F:	drivers/regulator/pbias-regulator.c
 F:	drivers/regulator/tps65217-regulator.c
 F:	drivers/regulator/tps65218-regulator.c
+F:	drivers/regulator/tps65219-regulator.c
 F:	drivers/regulator/tps65910-regulator.c
 F:	drivers/regulator/twl-regulator.c
 F:	drivers/regulator/twl6030-regulator.c
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index cbe0f96ca342..9b46c3465c46 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -1356,6 +1356,15 @@ config REGULATOR_TPS65218
 	  voltage regulators. It supports software based voltage control
 	  for different voltage domains
 
+config REGULATOR_TPS65219
+	tristate "TI TPS65219 Power regulators"
+	depends on MFD_TPS65219 && OF
+	help
+	  This driver supports TPS65219 voltage regulator chips.
+	  TPS65219 series of PMICs have 3 single phase BUCKs & 4 LDOs
+	  voltage regulators. It supports software based voltage control
+	  for different voltage domains.
+
 config REGULATOR_TPS6524X
 	tristate "TI TPS6524X Power regulators"
 	depends on SPI
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 8d3ee8b6d41d..f2e8509a8f89 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -159,6 +159,7 @@ obj-$(CONFIG_REGULATOR_TPS65086) += tps65086-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65090) += tps65090-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65217) += tps65217-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65218) += tps65218-regulator.o
+obj-$(CONFIG_REGULATOR_TPS65219) += tps65219-regulator.o
 obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
 obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
diff --git a/drivers/regulator/tps65219-regulator.c b/drivers/regulator/tps65219-regulator.c
new file mode 100644
index 000000000000..a35c86c4df68
--- /dev/null
+++ b/drivers/regulator/tps65219-regulator.c
@@ -0,0 +1,414 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * tps65219-regulator.c
+ *
+ * Regulator driver for TPS65219 PMIC
+ *
+ * Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
+ */
+
+/* This implementation derived from tps65218 authored by "J Keerthy <j-keerthy@ti.com>" */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/tps65219.h>
+
+struct tps65219_regulator_irq_type {
+	const char *irq_name;
+	const char *regulator_name;
+	const char *event_name;
+};
+
+struct tps65219_regulator_irq_type tps65219_regulator_irq_types[] = {
+	{ "LDO3_SCG", "LDO3", "short circuit to ground" },
+	{ "LDO3_OC", "LDO3", "overcurrent" },
+	{ "LDO3_UV", "LDO3", "undervoltage" },
+	{ "LDO4_SCG", "LDO4", "short circuit to ground" },
+	{ "LDO4_OC", "LDO4", "overcurrent" },
+	{ "LDO4_UV", "LDO4", "undervoltage" },
+	{ "LDO1_SCG", "LDO1", "short circuit to ground" },
+	{ "LDO1_OC", "LDO1", "overcurrent" },
+	{ "LDO1_UV", "LDO1", "undervoltage" },
+	{ "LDO2_SCG", "LDO2", "short circuit to ground" },
+	{ "LDO2_OC", "LDO2", "overcurrent" },
+	{ "LDO2_UV", "LDO2", "undervoltage" },
+	{ "BUCK3_SCG", "BUCK3", "short circuit to ground" },
+	{ "BUCK3_OC", "BUCK3", "overcurrent" },
+	{ "BUCK3_NEG_OC", "BUCK3", "negative overcurrent" },
+	{ "BUCK3_UV", "BUCK3", "undervoltage" },
+	{ "BUCK1_SCG", "BUCK1", "short circuit to ground" },
+	{ "BUCK1_OC", "BUCK1", "overcurrent" },
+	{ "BUCK1_NEG_OC", "BUCK1", "negative overcurrent" },
+	{ "BUCK1_UV", "BUCK1", "undervoltage" },
+	{ "BUCK2_SCG", "BUCK2", "short circuit to ground" },
+	{ "BUCK2_OC", "BUCK2", "overcurrent" },
+	{ "BUCK2_NEG_OC", "BUCK2", "negative overcurrent" },
+	{ "BUCK2_UV", "BUCK2", "undervoltage" },
+	{ "BUCK1_RV", "BUCK1", "residual voltage" },
+	{ "BUCK2_RV", "BUCK2", "residual voltage" },
+	{ "BUCK3_RV", "BUCK3", "residual voltage" },
+	{ "LDO1_RV", "LDO1", "residual voltage" },
+	{ "LDO2_RV", "LDO2", "residual voltage" },
+	{ "LDO3_RV", "LDO3", "residual voltage" },
+	{ "LDO4_RV", "LDO4", "residual voltage" },
+	{ "BUCK1_RV_SD", "BUCK1", "residual voltage on shutdown" },
+	{ "BUCK2_RV_SD", "BUCK2", "residual voltage on shutdown" },
+	{ "BUCK3_RV_SD", "BUCK3", "residual voltage on shutdown" },
+	{ "LDO1_RV_SD", "LDO1", "residual voltage on shutdown" },
+	{ "LDO2_RV_SD", "LDO2", "residual voltage on shutdown" },
+	{ "LDO3_RV_SD", "LDO3", "residual voltage on shutdown" },
+	{ "LDO4_RV_SD", "LDO4", "residual voltage on shutdown" },
+	{ "SENSOR_3_WARM", "SENSOR3", "warm temperature" },
+	{ "SENSOR_2_WARM", "SENSOR2", "warm temperature" },
+	{ "SENSOR_1_WARM", "SENSOR1", "warm temperature" },
+	{ "SENSOR_0_WARM", "SENSOR0", "warm temperature" },
+	{ "SENSOR_3_HOT", "SENSOR3", "hot temperature" },
+	{ "SENSOR_2_HOT", "SENSOR2", "hot temperature" },
+	{ "SENSOR_1_HOT", "SENSOR1", "hot temperature" },
+	{ "SENSOR_0_HOT", "SENSOR0", "hot temperature" },
+	{ "TIMEOUT", "", "" },
+};
+
+struct tps65219_regulator_irq_data {
+	struct device *dev;
+	struct tps65219_regulator_irq_type *type;
+};
+
+#define TPS65219_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \
+			   _em, _cr, _cm, _lr, _nlr, _delay, _fuv, \
+			   _ct, _ncl, _bpm) \
+	{								\
+		.name			= _name,			\
+		.of_match		= _of,				\
+		.regulators_node	= of_match_ptr("regulators"),	\
+		.supply_name		= _of,				\
+		.id			= _id,				\
+		.ops			= &(_ops),			\
+		.n_voltages		= _n,				\
+		.type			= _type,			\
+		.owner			= THIS_MODULE,			\
+		.vsel_reg		= _vr,				\
+		.vsel_mask		= _vm,				\
+		.csel_reg		= _cr,				\
+		.csel_mask		= _cm,				\
+		.curr_table		= _ct,				\
+		.n_current_limits	= _ncl,				\
+		.enable_reg		= _er,				\
+		.enable_mask		= _em,				\
+		.volt_table		= NULL,				\
+		.linear_ranges		= _lr,				\
+		.n_linear_ranges	= _nlr,				\
+		.ramp_delay		= _delay,			\
+		.fixed_uV		= _fuv,				\
+		.bypass_reg		= _vr,				\
+		.bypass_mask		= _bpm,				\
+		.bypass_val_on		= 1,				\
+	}								\
+
+static const struct linear_range bucks_ranges[] = {
+	REGULATOR_LINEAR_RANGE(600000, 0x0, 0x1f, 25000),
+	REGULATOR_LINEAR_RANGE(1400000, 0x20, 0x33, 100000),
+	REGULATOR_LINEAR_RANGE(3400000, 0x34, 0x3f, 0),
+};
+
+static const struct linear_range ldos_1_2_ranges[] = {
+	REGULATOR_LINEAR_RANGE(600000, 0x0, 0x37, 50000),
+	REGULATOR_LINEAR_RANGE(3400000, 0x38, 0x3f, 0),
+};
+
+static const struct linear_range ldos_3_4_ranges[] = {
+	REGULATOR_LINEAR_RANGE(1200000, 0x0, 0xC, 0),
+	REGULATOR_LINEAR_RANGE(1250000, 0xD, 0x35, 50000),
+	REGULATOR_LINEAR_RANGE(3300000, 0x36, 0x3F, 0),
+};
+
+static int tps65219_pmic_set_voltage_sel(struct regulator_dev *dev,
+					 unsigned int selector)
+{
+	int ret;
+	struct tps65219 *tps = rdev_get_drvdata(dev);
+
+	/* Set the voltage based on vsel value */
+	ret = regmap_update_bits(tps->regmap, dev->desc->vsel_reg,
+				 dev->desc->vsel_mask, selector);
+	if (ret) {
+		dev_dbg(tps->dev, "%s failed for regulator %s: %d ",
+			__func__, dev->desc->name, ret);
+	}
+	return ret;
+}
+
+static int tps65219_pmic_enable(struct regulator_dev *dev)
+{
+	struct tps65219 *tps = rdev_get_drvdata(dev);
+
+	return regmap_set_bits(tps->regmap, dev->desc->enable_reg,
+			      dev->desc->enable_mask);
+}
+
+static int tps65219_pmic_disable(struct regulator_dev *dev)
+{
+	struct tps65219 *tps = rdev_get_drvdata(dev);
+
+	return regmap_clear_bits(tps->regmap, dev->desc->enable_reg,
+				 dev->desc->enable_mask);
+}
+
+static int tps65219_set_mode(struct regulator_dev *dev, unsigned int mode)
+{
+	struct tps65219 *tps = rdev_get_drvdata(dev);
+
+	switch (mode) {
+	case REGULATOR_MODE_NORMAL:
+		return regmap_set_bits(tps->regmap, TPS65219_REG_STBY_1_CONFIG,
+				       dev->desc->enable_mask);
+
+	case REGULATOR_MODE_STANDBY:
+		return regmap_clear_bits(tps->regmap,
+					 TPS65219_REG_STBY_1_CONFIG,
+					 dev->desc->enable_mask);
+	}
+
+	return -EINVAL;
+}
+
+static unsigned int tps65219_get_mode(struct regulator_dev *dev)
+{
+	struct tps65219 *tps = rdev_get_drvdata(dev);
+	unsigned int rid = rdev_get_id(dev);
+	int ret, value = 0;
+
+	ret = regmap_read(tps->regmap, TPS65219_REG_STBY_1_CONFIG, &value);
+	if (ret) {
+		dev_dbg(tps->dev, "%s failed for regulator %s: %d ",
+			__func__, dev->desc->name, ret);
+		return ret;
+	}
+	value = (value & BIT(rid)) >> rid;
+	if (value)
+		return REGULATOR_MODE_STANDBY;
+	else
+		return REGULATOR_MODE_NORMAL;
+}
+
+/*
+ * generic regulator_set_bypass_regmap does not fully match requirements
+ * TPS65219 Requires explicitly that regulator is disabled before switch
+ */
+static int tps65219_set_bypass(struct regulator_dev *dev, bool enable)
+{
+	struct tps65219 *tps = rdev_get_drvdata(dev);
+	unsigned int rid = rdev_get_id(dev);
+	int ret = 0;
+
+	if (dev->desc->ops->enable) {
+		dev_err(tps->dev,
+			"%s LDO%d enabled, must be shut down to set bypass ",
+			__func__, rid);
+		return -EBUSY;
+	}
+	ret =  regulator_set_bypass_regmap(dev, enable);
+	return ret;
+}
+
+/* Operations permitted on BUCK1/2/3 */
+static const struct regulator_ops tps65219_bucks_ops = {
+	.is_enabled		= regulator_is_enabled_regmap,
+	.enable			= tps65219_pmic_enable,
+	.disable		= tps65219_pmic_disable,
+	.set_mode		= tps65219_set_mode,
+	.get_mode		= tps65219_get_mode,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= tps65219_pmic_set_voltage_sel,
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+
+};
+
+/* Operations permitted on LDO1/2 */
+static const struct regulator_ops tps65219_ldos_1_2_ops = {
+	.is_enabled		= regulator_is_enabled_regmap,
+	.enable			= tps65219_pmic_enable,
+	.disable		= tps65219_pmic_disable,
+	.set_mode		= tps65219_set_mode,
+	.get_mode		= tps65219_get_mode,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= tps65219_pmic_set_voltage_sel,
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.set_bypass		= tps65219_set_bypass,
+	.get_bypass		= regulator_get_bypass_regmap,
+};
+
+/* Operations permitted on LDO3/4 */
+static const struct regulator_ops tps65219_ldos_3_4_ops = {
+	.is_enabled		= regulator_is_enabled_regmap,
+	.enable			= tps65219_pmic_enable,
+	.disable		= tps65219_pmic_disable,
+	.set_mode		= tps65219_set_mode,
+	.get_mode		= tps65219_get_mode,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= tps65219_pmic_set_voltage_sel,
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+};
+
+static const struct regulator_desc regulators[] = {
+	TPS65219_REGULATOR("BUCK1", "buck1", TPS65219_BUCK_1,
+			   REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
+			   TPS65219_REG_BUCK1_VOUT,
+			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
+			   TPS65219_REG_ENABLE_CTRL,
+			   TPS65219_ENABLE_BUCK1_EN_MASK, 0, 0, bucks_ranges,
+			   3, 4000, 0, NULL, 0, 0),
+	TPS65219_REGULATOR("BUCK2", "buck2", TPS65219_BUCK_2,
+			   REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
+			   TPS65219_REG_BUCK2_VOUT,
+			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
+			   TPS65219_REG_ENABLE_CTRL,
+			   TPS65219_ENABLE_BUCK2_EN_MASK, 0, 0, bucks_ranges,
+			   3, 4000, 0, NULL, 0, 0),
+	TPS65219_REGULATOR("BUCK3", "buck3", TPS65219_BUCK_3,
+			   REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
+			   TPS65219_REG_BUCK3_VOUT,
+			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
+			   TPS65219_REG_ENABLE_CTRL,
+			   TPS65219_ENABLE_BUCK3_EN_MASK, 0, 0, bucks_ranges,
+			   3, 0, 0, NULL, 0, 0),
+	TPS65219_REGULATOR("LDO1", "ldo1", TPS65219_LDO_1,
+			   REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64,
+			   TPS65219_REG_LDO1_VOUT,
+			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
+			   TPS65219_REG_ENABLE_CTRL,
+			   TPS65219_ENABLE_LDO1_EN_MASK, 0, 0, ldos_1_2_ranges,
+			   2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK),
+	TPS65219_REGULATOR("LDO2", "ldo2", TPS65219_LDO_2,
+			   REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64,
+			   TPS65219_REG_LDO2_VOUT,
+			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
+			   TPS65219_REG_ENABLE_CTRL,
+			   TPS65219_ENABLE_LDO2_EN_MASK, 0, 0, ldos_1_2_ranges,
+			   2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK),
+	TPS65219_REGULATOR("LDO3", "ldo3", TPS65219_LDO_3,
+			   REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64,
+			   TPS65219_REG_LDO3_VOUT,
+			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
+			   TPS65219_REG_ENABLE_CTRL,
+			   TPS65219_ENABLE_LDO3_EN_MASK, 0, 0, ldos_3_4_ranges,
+			   3, 0, 0, NULL, 0, 0),
+	TPS65219_REGULATOR("LDO4", "ldo4", TPS65219_LDO_4,
+			   REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64,
+			   TPS65219_REG_LDO4_VOUT,
+			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
+			   TPS65219_REG_ENABLE_CTRL,
+			   TPS65219_ENABLE_LDO4_EN_MASK, 0, 0, ldos_3_4_ranges,
+			   3, 0, 0, NULL, 0, 0),
+};
+
+static irqreturn_t tps65219_regulator_irq_handler(int irq, void *data)
+{
+	struct tps65219_regulator_irq_data *irq_data = data;
+
+	if (irq_data->type->event_name[0] == '\0') {
+		/* This is the timeout interrupt */
+		dev_err(irq_data->dev, "System was put in shutdown during an active or standby transition.\n");
+		return IRQ_HANDLED;
+	}
+
+	dev_err(irq_data->dev, "Registered %s for %s\n",
+		irq_data->type->event_name, irq_data->type->regulator_name);
+	return IRQ_HANDLED;
+}
+
+static int tps65219_regulator_probe(struct platform_device *pdev)
+{
+	struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
+	struct regulator_dev *rdev;
+	struct regulator_config config = { };
+	int i;
+	int error;
+	int irq;
+	struct tps65219_regulator_irq_data *irq_data;
+	struct tps65219_regulator_irq_type *irq_type;
+
+	config.dev = tps->dev;
+	config.driver_data = tps;
+	config.regmap = tps->regmap;
+
+	for (i = 0; i < ARRAY_SIZE(regulators); i++) {
+		dev_dbg(tps->dev, "%s regul i= %d START", __func__, i);
+		rdev = devm_regulator_register(&pdev->dev, &regulators[i],
+					       &config);
+		if (IS_ERR(rdev)) {
+			dev_err(tps->dev, "failed to register %s regulator\n",
+				pdev->name);
+			return PTR_ERR(rdev);
+		}
+
+		dev_dbg(tps->dev, "%s regul i= %d COMPLETED", __func__, i);
+	}
+
+	irq_data = devm_kmalloc(tps->dev,
+				ARRAY_SIZE(tps65219_regulator_irq_types) *
+				sizeof(struct tps65219_regulator_irq_data),
+				GFP_KERNEL);
+	if (!irq_data)
+		return -ENOMEM;
+
+	for (i = 0; i < ARRAY_SIZE(tps65219_regulator_irq_types); ++i) {
+		irq_type = &tps65219_regulator_irq_types[i];
+
+		irq = platform_get_irq_byname(pdev, irq_type->irq_name);
+		if (irq < 0) {
+			dev_err(tps->dev, "Failed to get IRQ %s: %d\n",
+				irq_type->irq_name, irq);
+			return -EINVAL;
+		}
+		irq_data[i].dev = tps->dev;
+		irq_data[i].type = irq_type;
+
+		error = devm_request_threaded_irq(tps->dev, irq, NULL,
+						  tps65219_regulator_irq_handler,
+						  IRQF_ONESHOT,
+						  irq_type->irq_name,
+						  &irq_data[i]);
+		if (error) {
+			dev_err(tps->dev, "failed to request %s IRQ %d: %d\n",
+				irq_type->irq_name, irq, error);
+			return error;
+		}
+	}
+
+	return 0;
+}
+
+static const struct platform_device_id tps65219_regulator_id_table[] = {
+	{ "tps65219-regulator", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, tps65219_regulator_id_table);
+
+static struct platform_driver tps65219_regulator_driver = {
+	.driver = {
+		.name = "tps65219-pmic",
+	},
+	.probe = tps65219_regulator_probe,
+	.id_table = tps65219_regulator_id_table,
+};
+
+module_platform_driver(tps65219_regulator_driver);
+
+MODULE_AUTHOR("Jerome Neanne <j-neanne@baylibre.com>");
+MODULE_DESCRIPTION("TPS65219 voltage regulator driver");
+MODULE_ALIAS("platform:tps65219-pmic");
+MODULE_LICENSE("GPL");
-- 
2.17.1

Re: [PATCH v1 08/14] regulator: drivers: Add TI TPS65219 PMIC regulators support

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 2350 bytes --]

On Tue, Jul 19, 2022 at 11:17:36AM +0200, Jerome Neanne wrote:

> @@ -0,0 +1,414 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * tps65219-regulator.c
> + *

Please make the entire comment a C++ one so things look more
intentional.

> +static int tps65219_pmic_set_voltage_sel(struct regulator_dev *dev,
> +					 unsigned int selector)
> +{
> +	int ret;
> +	struct tps65219 *tps = rdev_get_drvdata(dev);
> +
> +	/* Set the voltage based on vsel value */
> +	ret = regmap_update_bits(tps->regmap, dev->desc->vsel_reg,
> +				 dev->desc->vsel_mask, selector);
> +	if (ret) {
> +		dev_dbg(tps->dev, "%s failed for regulator %s: %d ",
> +			__func__, dev->desc->name, ret);
> +	}
> +	return ret;
> +}

This should just be able to use the standard regmap helper, as should
the enable and disable operations?

> +static int tps65219_set_mode(struct regulator_dev *dev, unsigned int mode)
> +{
> +	struct tps65219 *tps = rdev_get_drvdata(dev);
> +
> +	switch (mode) {
> +	case REGULATOR_MODE_NORMAL:
> +		return regmap_set_bits(tps->regmap, TPS65219_REG_STBY_1_CONFIG,
> +				       dev->desc->enable_mask);
> +
> +	case REGULATOR_MODE_STANDBY:
> +		return regmap_clear_bits(tps->regmap,
> +					 TPS65219_REG_STBY_1_CONFIG,
> +					 dev->desc->enable_mask);
> +	}
> +
> +	return -EINVAL;

It'd be a little clearer to have that -EINVAL in a default statement.

> +static irqreturn_t tps65219_regulator_irq_handler(int irq, void *data)
> +{
> +	struct tps65219_regulator_irq_data *irq_data = data;
> +
> +	if (irq_data->type->event_name[0] == '\0') {
> +		/* This is the timeout interrupt */
> +		dev_err(irq_data->dev, "System was put in shutdown during an active or standby transition.\n");
> +		return IRQ_HANDLED;
> +	}
> +
> +	dev_err(irq_data->dev, "Registered %s for %s\n",
> +		irq_data->type->event_name, irq_data->type->regulator_name);

This should be reporting the events through the notification API, see
regulator_notifier_call_chain().  That will require a bit of refactoring
of the way the driver is registering interrupts unfortunately, at the
minute it doesn't have data joining them up with the 

I'd also reword that log message to be something more like "Error %s
reported for %s" - at the minute it looks more like a probe message.

Otherwise this looks good.

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Re: [PATCH v1 08/14] regulator: drivers: Add TI TPS65219 PMIC regulators support

[jerome Neanne]

On 19/07/2022 15:32, Mark Brown wrote:
> On Tue, Jul 19, 2022 at 11:17:36AM +0200, Jerome Neanne wrote:
>
>> @@ -0,0 +1,414 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +/*
>> + * tps65219-regulator.c
>> + *
> Please make the entire comment a C++ one so things look more
> intentional.
>
>> +static int tps65219_pmic_set_voltage_sel(struct regulator_dev *dev,
>> +					 unsigned int selector)
>> +{
>> +	int ret;
>> +	struct tps65219 *tps = rdev_get_drvdata(dev);
>> +
>> +	/* Set the voltage based on vsel value */
>> +	ret = regmap_update_bits(tps->regmap, dev->desc->vsel_reg,
>> +				 dev->desc->vsel_mask, selector);
>> +	if (ret) {
>> +		dev_dbg(tps->dev, "%s failed for regulator %s: %d ",
>> +			__func__, dev->desc->name, ret);
>> +	}
>> +	return ret;
>> +}
> This should just be able to use the standard regmap helper, as should
> the enable and disable operations?
>
>> +static int tps65219_set_mode(struct regulator_dev *dev, unsigned int mode)
>> +{
>> +	struct tps65219 *tps = rdev_get_drvdata(dev);
>> +
>> +	switch (mode) {
>> +	case REGULATOR_MODE_NORMAL:
>> +		return regmap_set_bits(tps->regmap, TPS65219_REG_STBY_1_CONFIG,
>> +				       dev->desc->enable_mask);
>> +
>> +	case REGULATOR_MODE_STANDBY:
>> +		return regmap_clear_bits(tps->regmap,
>> +					 TPS65219_REG_STBY_1_CONFIG,
>> +					 dev->desc->enable_mask);
>> +	}
>> +
>> +	return -EINVAL;
> It'd be a little clearer to have that -EINVAL in a default statement.
>
>> +static irqreturn_t tps65219_regulator_irq_handler(int irq, void *data)
>> +{
>> +	struct tps65219_regulator_irq_data *irq_data = data;
>> +
>> +	if (irq_data->type->event_name[0] == '\0') {
>> +		/* This is the timeout interrupt */
>> +		dev_err(irq_data->dev, "System was put in shutdown during an active or standby transition.\n");
>> +		return IRQ_HANDLED;
>> +	}
>> +
>> +	dev_err(irq_data->dev, "Registered %s for %s\n",
>> +		irq_data->type->event_name, irq_data->type->regulator_name);
> This should be reporting the events through the notification API, see
> regulator_notifier_call_chain().  That will require a bit of refactoring
> of the way the driver is registering interrupts unfortunately, at the
> minute it doesn't have data joining them up with the
>
> I'd also reword that log message to be something more like "Error %s
> reported for %s" - at the minute it looks more like a probe message.
>
> Otherwise this looks good.
Thanks for your review.

Refactoring the code with regulator_notifier_call_chain, I realized that 
some of the events in TPS65219 are not listed as standard 
REGULATOR_EVENT in consumer.h

This is the case for below event list:
REGULATOR_EVENT_SCG (ShortCut to Gnd)

REGULATOR_EVENT_RV (Residual Voltage)

REGULATOR_EVENT_RV_SD (Residual Voltage ShutDown)

Should I add those events to the list of standard regulator events and 
assign a code? (if yes, any rule for the values?)
Would it fit with some other predefined standard macro defined 
elsewhere? (if yes, could you point me to the right location?)

> @@ -0,0 +1,414 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * tps65219-regulator.c
> + *

Please make the entire comment a C++ one so things look more
intentional.

checkpatch is complaining about that:

---------------------------------------------------------------------
v5.19-rc6-PB-MSP1/0005-mfd-drivers-Add-TI-TPS65219-PMIC-support.patch
---------------------------------------------------------------------
WARNING: Improper SPDX comment style for 'drivers/mfd/tps65219.c', please use '//' instead
#91: FILE: drivers/mfd/tps65219.c:1:
+/* SPDX-License-Identifier: GPL-2.0

Let me know if I should ignore checkpatch recommendations here.

Regards,
Jerome

Re: [PATCH v1 08/14] regulator: drivers: Add TI TPS65219 PMIC regulators support

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 1283 bytes --]

On Fri, Jul 22, 2022 at 12:12:05PM +0200, jerome Neanne wrote:
> On 19/07/2022 15:32, Mark Brown wrote:
> > On Tue, Jul 19, 2022 at 11:17:36AM +0200, Jerome Neanne wrote:

> Refactoring the code with regulator_notifier_call_chain, I realized that
> some of the events in TPS65219 are not listed as standard REGULATOR_EVENT in
> consumer.h
> 
> This is the case for below event list:
> REGULATOR_EVENT_SCG (ShortCut to Gnd)
> 
> REGULATOR_EVENT_RV (Residual Voltage)
> 
> REGULATOR_EVENT_RV_SD (Residual Voltage ShutDown)
> 
> Should I add those events to the list of standard regulator events and
> assign a code? (if yes, any rule for the values?)
> Would it fit with some other predefined standard macro defined elsewhere?
> (if yes, could you point me to the right location?)

Map them onto the existing values, the exact mapping will depend on what
those events mean, force disable or out of regulation look like likely
candidates for example.  If there's anything that's just not covered
then perhaps a new event type is needed.

Please delete unneeded context from mails when replying.  Doing this
makes it much easier to find your reply in the message, helping ensure
it won't be missed by people scrolling through the irrelevant quoted
material.

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Re: [PATCH v1 08/14] regulator: drivers: Add TI TPS65219 PMIC regulators support

[jerome Neanne]

> @@ -0,0 +1,414 @@
 > +// SPDX-License-Identifier: GPL-2.0
 > +/*
 > + * tps65219-regulator.c
 > + *

Please make the entire comment a C++ one so things look more
intentional.

checkpatch is complaining about that:

---------------------------------------------------------------------
v5.19-rc6-PB-MSP1/0005-mfd-drivers-Add-TI-TPS65219-PMIC-support.patch
---------------------------------------------------------------------
WARNING: Improper SPDX comment style for 'drivers/mfd/tps65219.c', 
please use '//' instead
#91: FILE: drivers/mfd/tps65219.c:1:
+/* SPDX-License-Identifier: GPL-2.0

Let me know if I should ignore checkpatch recommendations here.

Re: [PATCH v1 08/14] regulator: drivers: Add TI TPS65219 PMIC regulators support

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 1035 bytes --]

On Fri, Jul 22, 2022 at 03:30:11PM +0200, jerome Neanne wrote:
> > @@ -0,0 +1,414 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * tps65219-regulator.c
> > + *

> Please make the entire comment a C++ one so things look more
> intentional.

> checkpatch is complaining about that:

> ---------------------------------------------------------------------
> v5.19-rc6-PB-MSP1/0005-mfd-drivers-Add-TI-TPS65219-PMIC-support.patch
> ---------------------------------------------------------------------
> WARNING: Improper SPDX comment style for 'drivers/mfd/tps65219.c', please
> use '//' instead
> #91: FILE: drivers/mfd/tps65219.c:1:
> +/* SPDX-License-Identifier: GPL-2.0

> Let me know if I should ignore checkpatch recommendations here.

checkpatch is complaining about you having written a C comment there,
I'm asking you to make the entire block a C++ comment.  checkpatch won't
complain if you do that.

Please fix your mail client to clearly indicate quoted sections of text,
it's quite hard to read things as they are.

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[PATCH v1 09/14] Input: Add tps65219 interrupt driven powerbutton

[Jerome Neanne]

From: Markus Schneider-Pargmann <msp@baylibre.com>

TPS65219 has different interrupts compared to other TPS6521* chips.
TPS65219 defines two interrupts for the powerbutton one for push and one
for release.

This driver is very simple in that it maps the push interrupt to a key
input and the release interrupt to a key release.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 MAINTAINERS                             |   1 +
 drivers/input/misc/Kconfig              |  10 ++
 drivers/input/misc/Makefile             |   1 +
 drivers/input/misc/tps65219-pwrbutton.c | 150 ++++++++++++++++++++++++
 4 files changed, 162 insertions(+)
 create mode 100644 drivers/input/misc/tps65219-pwrbutton.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 2e6ee583f3ff..fdd547ac8c6c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14705,6 +14705,7 @@ F:	arch/arm/plat-omap/
 F:	drivers/bus/ti-sysc.c
 F:	drivers/i2c/busses/i2c-omap.c
 F:	drivers/input/misc/tps65218-pwrbutton.c
+F:	drivers/input/misc/tps65219-pwrbutton.c
 F:	drivers/irqchip/irq-omap-intc.c
 F:	drivers/mfd/*omap*.c
 F:	drivers/mfd/menelaus.c
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index a18ab7358d8f..18d4a321e7ff 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -468,6 +468,16 @@ config INPUT_TPS65218_PWRBUTTON
 	  To compile this driver as a module, choose M here. The module will
 	  be called tps65218-pwrbutton.
 
+config INPUT_TPS65219_PWRBUTTON
+	tristate "TPS65219 Power button driver"
+	depends on MFD_TPS65219
+	help
+	  Say Y here if you want to enable power button reporting for
+	  TPS65219 Power Management IC devices.
+
+	  To compile this driver as a module, choose M here. The module will
+	  be called tps65219-pwrbutton.
+
 config INPUT_AXP20X_PEK
 	tristate "X-Powers AXP20X power button driver"
 	depends on MFD_AXP20X
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 28dfc444f0a9..fe8f47402d12 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -78,6 +78,7 @@ obj-$(CONFIG_INPUT_SOC_BUTTON_ARRAY)	+= soc_button_array.o
 obj-$(CONFIG_INPUT_SPARCSPKR)		+= sparcspkr.o
 obj-$(CONFIG_INPUT_STPMIC1_ONKEY)  	+= stpmic1_onkey.o
 obj-$(CONFIG_INPUT_TPS65218_PWRBUTTON)	+= tps65218-pwrbutton.o
+obj-$(CONFIG_INPUT_TPS65219_PWRBUTTON)	+= tps65219-pwrbutton.o
 obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON)	+= twl4030-pwrbutton.o
 obj-$(CONFIG_INPUT_TWL4030_VIBRA)	+= twl4030-vibra.o
 obj-$(CONFIG_INPUT_TWL6040_VIBRA)	+= twl6040-vibra.o
diff --git a/drivers/input/misc/tps65219-pwrbutton.c b/drivers/input/misc/tps65219-pwrbutton.c
new file mode 100644
index 000000000000..c3285424c0f7
--- /dev/null
+++ b/drivers/input/misc/tps65219-pwrbutton.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for TPS65219 Push Button
+ *
+ * Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
+ */
+
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mfd/tps65219.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+struct tps65219_pwrbutton {
+	struct device *dev;
+	struct input_dev *idev;
+	char phys[32];
+};
+
+static irqreturn_t tps65219_pb_push_irq(int irq, void *_pwr)
+{
+	struct tps65219_pwrbutton *pwr = _pwr;
+
+	input_report_key(pwr->idev, KEY_POWER, 1);
+	pm_wakeup_event(pwr->dev, 0);
+	input_sync(pwr->idev);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t tps65219_pb_release_irq(int irq, void *_pwr)
+{
+	struct tps65219_pwrbutton *pwr = _pwr;
+
+	input_report_key(pwr->idev, KEY_POWER, 0);
+	input_sync(pwr->idev);
+
+	return IRQ_HANDLED;
+}
+
+static int tps65219_pb_probe(struct platform_device *pdev)
+{
+	struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
+	struct device *dev = &pdev->dev;
+	struct tps65219_pwrbutton *pwr;
+	struct input_dev *idev;
+	int error;
+	int push_irq;
+	int release_irq;
+
+	pwr = devm_kzalloc(dev, sizeof(*pwr), GFP_KERNEL);
+	if (!pwr)
+		return -ENOMEM;
+
+	idev = devm_input_allocate_device(dev);
+	if (!idev)
+		return -ENOMEM;
+
+	idev->name = pdev->name;
+	snprintf(pwr->phys, sizeof(pwr->phys), "%s/input0",
+		 pdev->name);
+	idev->phys = pwr->phys;
+	idev->dev.parent = dev;
+	idev->id.bustype = BUS_I2C;
+
+	input_set_capability(idev, EV_KEY, KEY_POWER);
+
+	pwr->dev = dev;
+	pwr->idev = idev;
+	device_init_wakeup(dev, true);
+
+	push_irq = platform_get_irq(pdev, 0);
+	if (push_irq < 0)
+		return -EINVAL;
+
+	release_irq = platform_get_irq(pdev, 1);
+	if (release_irq < 0)
+		return -EINVAL;
+
+	error = devm_request_threaded_irq(dev, push_irq, NULL,
+					  tps65219_pb_push_irq,
+					  IRQF_ONESHOT,
+					  dev->init_name, pwr);
+	if (error) {
+		dev_err(dev, "failed to request push IRQ #%d: %d\n", push_irq,
+			error);
+		return error;
+	}
+
+	error = devm_request_threaded_irq(dev, release_irq, NULL,
+					  tps65219_pb_release_irq,
+					  IRQF_ONESHOT,
+					  dev->init_name, pwr);
+	if (error) {
+		dev_err(dev, "failed to request release IRQ #%d: %d\n",
+			release_irq, error);
+		return error;
+	}
+
+	error = input_register_device(idev);
+	if (error) {
+		dev_err(dev, "Can't register power button: %d\n", error);
+		return error;
+	}
+
+	/* Enable interrupts for the pushbutton */
+	regmap_clear_bits(tps->regmap, TPS65219_REG_MASK_CONFIG,
+			  TPS65219_REG_MASK_INT_FOR_PB_MASK);
+
+	/* Set PB/EN/VSENSE pin to be a pushbutton */
+	regmap_update_bits(tps->regmap, TPS65219_REG_MFP_2_CONFIG,
+			   TPS65219_MFP_2_EN_PB_VSENSE_MASK, TPS65219_MFP_2_PB);
+
+	return 0;
+}
+
+static int tps65219_pb_remove(struct platform_device *pdev)
+{
+	struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
+
+	/* Disable interrupt for the pushbutton */
+	return regmap_update_bits(tps->regmap, TPS65219_REG_MASK_CONFIG,
+				  TPS65219_REG_MASK_INT_FOR_PB_MASK,
+				  TPS65219_REG_MASK_INT_FOR_PB_MASK);
+}
+
+static const struct platform_device_id tps65219_pwrbtn_id_table[] = {
+	{ "tps65219-pwrbutton", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, tps65219_pwrbtn_id_table);
+
+static struct platform_driver tps65219_pb_driver = {
+	.probe = tps65219_pb_probe,
+	.remove = tps65219_pb_remove,
+	.driver = {
+		.name = "tps65219_pwrbutton",
+	},
+	.id_table = tps65219_pwrbtn_id_table,
+};
+module_platform_driver(tps65219_pb_driver);
+
+MODULE_DESCRIPTION("TPS65219 Power Button");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Markus Schneider-Pargmann <msp@baylibre.com");
-- 
2.17.1

[PATCH v1 10/14] arm64: defconfig: Add tps65219 as modules

[Jerome Neanne]

This adds defconfig option to support TPS65219 PMIC, MFD and Regulators

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 arch/arm64/configs/defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 7d1105343bc2..f031dd6a9f76 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -641,6 +641,7 @@ CONFIG_MFD_SPMI_PMIC=y
 CONFIG_MFD_RK808=y
 CONFIG_MFD_SEC_CORE=y
 CONFIG_MFD_SL28CPLD=y
+CONFIG_MFD_TPS65219=m
 CONFIG_MFD_ROHM_BD718XX=y
 CONFIG_MFD_WCD934X=m
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
@@ -668,6 +669,7 @@ CONFIG_REGULATOR_QCOM_SPMI=y
 CONFIG_REGULATOR_RK808=y
 CONFIG_REGULATOR_S2MPS11=y
 CONFIG_REGULATOR_TPS65132=m
+CONFIG_REGULATOR_TPS65219=m
 CONFIG_REGULATOR_VCTRL=m
 CONFIG_RC_CORE=m
 CONFIG_RC_DECODERS=y
-- 
2.17.1

[PATCH v1 11/14] arm64: dts: ti: Add TI TPS65219 PMIC support for AM642 SK board.

[Jerome Neanne]

Add support fot the TI Power Management IC TPS65219
on the AM642 SKEVM board

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 arch/arm64/boot/dts/ti/k3-am642-sk.dts | 104 +++++++++++++++++++++++++
 1 file changed, 104 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index 59f506cbd275..4daf55b9d61a 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -150,6 +150,20 @@
 		vin-supply = <&com8_ls_en>;
 		gpio = <&main_gpio0 48 GPIO_ACTIVE_HIGH>;
 	};
+
+	vsel_sd_nddr: gpio-regulator {
+		compatible = "regulator-gpio";
+		pinctrl-names = "default";
+		pinctrl-0 = <&vsel_sd_nddr_pins_default>;
+		regulator-name = "tps65219-LDO1-SEL-SD";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		vin-supply = <&ldo1_reg>;
+		gpios = <&main_gpio0 45 GPIO_ACTIVE_HIGH>;
+		states = <1800000 0x0>,
+			 <3300000 0x1>;
+	};
 };
 
 &main_pmx0 {
@@ -172,6 +186,13 @@
 		>;
 	};
 
+	main_i2c0_pins_default: main-i2c0-pins-default {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0260, PIN_INPUT_PULLUP, 0) /* (A18) I2C0_SCL */
+			AM64X_IOPAD(0x0264, PIN_INPUT_PULLUP, 0) /* (B18) I2C0_SDA */
+		>;
+	};
+
 	main_i2c1_pins_default: main-i2c1-pins-default {
 		pinctrl-single,pins = <
 			AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */
@@ -258,6 +279,12 @@
 			AM64X_IOPAD(0x00bc, PIN_INPUT, 7) /* (U8) GPIO0_46 */
 		>;
 	};
+
+	vsel_sd_nddr_pins_default: vsel-sd-nddr-pins-default {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x00b8, PIN_INPUT, 7) /* (Y7) PRG1_PRU0_GPO0.GPIO0_45 */
+		>;
+	};
 };
 
 &mcu_uart0 {
@@ -301,6 +328,83 @@
 	status = "disabled";
 };
 
+&main_i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_i2c0_pins_default>;
+	clock-frequency = <400000>;
+	status = "okay";
+
+	tps65219: pmic@30 {
+		compatible = "ti,tps65219";
+		reg = <0x30>;
+		system-power-controller;
+
+		buck1-supply = <&vcc_3v3_sys>;
+		buck2-supply = <&vcc_3v3_sys>;
+		buck3-supply = <&vcc_3v3_sys>;
+		ldo1-supply = <&vcc_3v3_sys>;
+		ldo2-supply = <&buck2_reg>;
+		ldo3-supply = <&vcc_3v3_sys>;
+		ldo4-supply = <&vcc_3v3_sys>;
+
+		regulators {
+			buck1_reg: buck1 {
+				regulator-name = "VDD_CORE";
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck2_reg: buck2 {
+				regulator-name = "VCC1V8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck3_reg: buck3 {
+				regulator-name = "VDD_LPDDR4";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo1_reg: ldo1 {
+				regulator-name = "VDDSHV_SD_IO_PMIC";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-allow-bypass;
+			};
+
+			ldo2_reg: ldo2 {
+				regulator-name = "VDDAR_CORE";
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <850000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo3_reg: ldo3 {
+				regulator-name = "VDDA_1V8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo4_reg: ldo4 {
+				regulator-name = "VDD_PHY_2V5";
+				regulator-min-microvolt = <2500000>;
+				regulator-max-microvolt = <2500000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
+};
 &main_i2c1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_i2c1_pins_default>;
-- 
2.17.1

Re: [PATCH v1 11/14] arm64: dts: ti: Add TI TPS65219 PMIC support for AM642 SK board.

[Nishanth Menon]

On 11:17-20220719, Jerome Neanne wrote:
> Add support fot the TI Power Management IC TPS65219
> on the AM642 SKEVM board
> 
> Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
> ---

>  arch/arm64/boot/dts/ti/k3-am642-sk.dts | 104 +++++++++++++++++++++++++
>  1 file changed, 104 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> index 59f506cbd275..4daf55b9d61a 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> @@ -150,6 +150,20 @@
>  		vin-supply = <&com8_ls_en>;
>  		gpio = <&main_gpio0 48 GPIO_ACTIVE_HIGH>;
>  	};
> +
> +	vsel_sd_nddr: gpio-regulator {
> +		compatible = "regulator-gpio";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&vsel_sd_nddr_pins_default>;
> +		regulator-name = "tps65219-LDO1-SEL-SD";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <3300000>;
> +		regulator-boot-on;
> +		vin-supply = <&ldo1_reg>;
> +		gpios = <&main_gpio0 45 GPIO_ACTIVE_HIGH>;
> +		states = <1800000 0x0>,
> +			 <3300000 0x1>;
> +	};
>  };
>  
>  &main_pmx0 {
> @@ -172,6 +186,13 @@
>  		>;
>  	};
>  
> +	main_i2c0_pins_default: main-i2c0-pins-default {
> +		pinctrl-single,pins = <
> +			AM64X_IOPAD(0x0260, PIN_INPUT_PULLUP, 0) /* (A18) I2C0_SCL */
> +			AM64X_IOPAD(0x0264, PIN_INPUT_PULLUP, 0) /* (B18) I2C0_SDA */
> +		>;
> +	};
> +
>  	main_i2c1_pins_default: main-i2c1-pins-default {
>  		pinctrl-single,pins = <
>  			AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */
> @@ -258,6 +279,12 @@
>  			AM64X_IOPAD(0x00bc, PIN_INPUT, 7) /* (U8) GPIO0_46 */
>  		>;
>  	};
> +
> +	vsel_sd_nddr_pins_default: vsel-sd-nddr-pins-default {
> +		pinctrl-single,pins = <
> +			AM64X_IOPAD(0x00b8, PIN_INPUT, 7) /* (Y7) PRG1_PRU0_GPO0.GPIO0_45 */
> +		>;
> +	};
>  };
>  
>  &mcu_uart0 {
> @@ -301,6 +328,83 @@
>  	status = "disabled";
>  };
>  
> +&main_i2c0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&main_i2c0_pins_default>;
> +	clock-frequency = <400000>;
> +	status = "okay";
> +
> +	tps65219: pmic@30 {

Am I missing something?
https://www.ti.com/tool/SK-AM64#design-files
https://www.ti.com/lit/df/sprr432/sprr432.pdf
Page 11: 
I see TPS6521815 at address 0x24, nothing in 0x30?

> +		compatible = "ti,tps65219";
> +		reg = <0x30>;
> +		system-power-controller;
> +
> +		buck1-supply = <&vcc_3v3_sys>;
> +		buck2-supply = <&vcc_3v3_sys>;
> +		buck3-supply = <&vcc_3v3_sys>;
> +		ldo1-supply = <&vcc_3v3_sys>;
> +		ldo2-supply = <&buck2_reg>;
> +		ldo3-supply = <&vcc_3v3_sys>;
> +		ldo4-supply = <&vcc_3v3_sys>;
> +
> +		regulators {
> +			buck1_reg: buck1 {
> +				regulator-name = "VDD_CORE";
> +				regulator-min-microvolt = <750000>;
> +				regulator-max-microvolt = <1000000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +			};
> +
> +			buck2_reg: buck2 {
> +				regulator-name = "VCC1V8";
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <1800000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +			};
> +
> +			buck3_reg: buck3 {
> +				regulator-name = "VDD_LPDDR4";
> +				regulator-min-microvolt = <1100000>;
> +				regulator-max-microvolt = <1100000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +			};
> +
> +			ldo1_reg: ldo1 {
> +				regulator-name = "VDDSHV_SD_IO_PMIC";
> +				regulator-min-microvolt = <1000000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-allow-bypass;
> +			};
> +
> +			ldo2_reg: ldo2 {
> +				regulator-name = "VDDAR_CORE";
> +				regulator-min-microvolt = <850000>;
> +				regulator-max-microvolt = <850000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +			};
> +
> +			ldo3_reg: ldo3 {
> +				regulator-name = "VDDA_1V8";
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <1800000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +			};
> +
> +			ldo4_reg: ldo4 {
> +				regulator-name = "VDD_PHY_2V5";
> +				regulator-min-microvolt = <2500000>;
> +				regulator-max-microvolt = <2500000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +			};
> +		};
> +	};
> +};
>  &main_i2c1 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&main_i2c1_pins_default>;
> -- 
> 2.17.1
> 

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D

Re: [PATCH v1 11/14] arm64: dts: ti: Add TI TPS65219 PMIC support for AM642 SK board.

[Nishanth Menon]

On 15:11-20220719, Jérôme Neanne wrote:
> > > +&main_i2c0 {
> > > +     pinctrl-names = "default";
> > > +     pinctrl-0 = <&main_i2c0_pins_default>;
> > > +     clock-frequency = <400000>;
> > > +     status = "okay";
> > > +
> > > +     tps65219: pmic@30 {
> >
> > Am I missing something?
> > https://www.ti.com/tool/SK-AM64#design-files
> > https://www.ti.com/lit/df/sprr432/sprr432.pdf
> > Page 11:
> > I see TPS6521815 at address 0x24, nothing in 0x30?
> >
> TI provides me a preliminary spec for TPS65219 where it is stated:
> "7.3.8 I 2 C Serial Interface (SDA and SCL)
> The TPS65219 hosts a slave I2C interface that supports I2C-bus data
> transfers in Standard-mode (100 kbit/s),
> Fast-mode (400 kbit/s) and Fast-mode plus (1 Mbit/s).
> The default I2C-adress is 0x30, but can be changed if needed, e.g. for
> multi-PMIC-operation."
> 
> Don't know when the spec will be released publically
> 

Please do not top post.

https://www.ti.com/product/TPS65219 - the PMIC is public for sure. I am
not complaining about that.

What the I was commenting is that the AM64-SK device tree you are
modifying does'nt have the said PMIC. If this is a custom board, then
lets not upstream such a board. If another board is supposed to contain
it, lets enable the PMIC in the corresponding board.

That does'nt negate the entire series, just the device tree patches as
provided in this series is invalid - I have no intent of picking up
patches that will break everyone's am64-sk boards.

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D

[PATCH v1 12/14] arm64: dts: ti: Add pinmux and irq mapping for TPS65219 external interrupts

[Jerome Neanne]

Interrupt occurring on PMIC TPS65219 is propagated to SOC
through EXTINTn pin connected to gic500 interrupt controller

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 arch/arm64/boot/dts/ti/k3-am642-sk.dts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index 4daf55b9d61a..7a84223406f5 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -285,6 +285,12 @@
 			AM64X_IOPAD(0x00b8, PIN_INPUT, 7) /* (Y7) PRG1_PRU0_GPO0.GPIO0_45 */
 		>;
 	};
+
+	pmic_irq_pins_default: pmic-irq-pins-default {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0278, PIN_INPUT, 0) /* (C19) EXTINTn */
+		>;
+	};
 };
 
 &mcu_uart0 {
@@ -338,6 +344,12 @@
 		compatible = "ti,tps65219";
 		reg = <0x30>;
 		system-power-controller;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pmic_irq_pins_default>;
+		interrupt-parent = <&gic500>;
+		interrupts = <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
 
 		buck1-supply = <&vcc_3v3_sys>;
 		buck2-supply = <&vcc_3v3_sys>;
-- 
2.17.1

[PATCH v1 13/14] arm64: dts: ti: k3-am642-sk: Enable tps65219 power-button

[Jerome Neanne]

From: Markus Schneider-Pargmann <msp@baylibre.com>

This board uses the pin as a power-button, enable it.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 arch/arm64/boot/dts/ti/k3-am642-sk.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index 7a84223406f5..1aa441db7097 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -350,6 +350,7 @@
 		interrupts = <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-controller;
 		#interrupt-cells = <1>;
+		power-button;
 
 		buck1-supply = <&vcc_3v3_sys>;
 		buck2-supply = <&vcc_3v3_sys>;
-- 
2.17.1

[PATCH v1 14/14] arm64: defconfig: Add tps65219 power-button as module

[Jerome Neanne]

Adds defconfig option to support TPS65219 PMIC power-button.

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
 arch/arm64/configs/defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index f031dd6a9f76..988397574e3c 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -412,6 +412,7 @@ CONFIG_TOUCHSCREEN_GOODIX=m
 CONFIG_TOUCHSCREEN_EDT_FT5X06=m
 CONFIG_INPUT_MISC=y
 CONFIG_INPUT_PM8941_PWRKEY=y
+CONFIG_INPUT_TPS65219_PWRBUTTON=m
 CONFIG_INPUT_PM8XXX_VIBRATOR=m
 CONFIG_INPUT_PWM_BEEPER=m
 CONFIG_INPUT_PWM_VIBRA=m
-- 
2.17.1