[v2] dt-bindings: Convert active-semi PMIC docs to YAML schemas

  Create YAML bindings for the Active-semi PMICs and remove the old text
files.

The bindings aren't perfect, for instance I couldn't find good
descriptions for the vendor properties in the "charger" node of the
ACT8945A because I am not familiar with the hardware and these
properties were not documented anywhere.

The YAML schemas are a bit different than what is described in the old
text files, because these were sometimes wrong or had missing
information. This is the case for the ACT8600 documentation, which
specified the valid node names for the regulators, while the driver was
expecting different names. This led to the current situation where we
have two different boards using different names for the regulators:
- arch/mips/boot/dts/ingenic/ci20.dts uses the names documented in the
  text file,
- arch/mips/boot/dts/ingenic/gcw0.dts uses the names that the driver
  expects.
In theory, the driver should be fixed to follow the documentation, and
accept both naming schemes. In practice though, when the PMIC node was
added to the ci20.dts board file, the names were already wrong in
regards to what the driver expected, so it never really worked
correctly and wasn't tested properly. Furthermore, in that board the
consumers of the regulators aren't working for various other reasons
(invalid GPIOs, etc.).

For that reason, for the ACT8600 bindings I decided to only use the node
names that the driver expects (and that gcw0.dts uses), instead of
accepting both old and new names. A follow-up patch will update the CI20
board to use the new regulator names.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---

Notes:
    v2:
    - Avoid | character in descriptions that can be single-line
    - Remove unevaluatedProperties when additionalProperties is also present
    - Remove useless inner parentheses in regular expressions
    - Rename I2C nodes to just... i2c
    - Remove node handles
    
    Note:
    I set Liam Girdwood and Mark Brown as the maintainers by default, since
    it doesn't appear that anybody is managing the Active-semi drivers, but
    if anybody steps up I can update it.

 .../bindings/regulator/act8865-regulator.txt  | 117 --------
 .../bindings/regulator/act8945a-regulator.txt | 113 --------
 .../regulator/active-semi,act8600.yaml        | 141 ++++++++++
 .../regulator/active-semi,act8846.yaml        | 207 ++++++++++++++
 .../regulator/active-semi,act8865.yaml        | 162 +++++++++++
 .../regulator/active-semi,act8945a.yaml       | 261 ++++++++++++++++++
 6 files changed, 771 insertions(+), 230 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/regulator/act8865-regulator.txt
 delete mode 100644 Documentation/devicetree/bindings/regulator/act8945a-regulator.txt
 create mode 100644 Documentation/devicetree/bindings/regulator/active-semi,act8600.yaml
 create mode 100644 Documentation/devicetree/bindings/regulator/active-semi,act8846.yaml
 create mode 100644 Documentation/devicetree/bindings/regulator/active-semi,act8865.yaml
 create mode 100644 Documentation/devicetree/bindings/regulator/active-semi,act8945a.yaml
  

On 05/11/2022 23:58, Paul Cercueil wrote:
> Create YAML bindings for the Active-semi PMICs and remove the old text
> files.
> 
> The bindings aren't perfect, for instance I couldn't find good
> descriptions for the vendor properties in the "charger" node of the
> ACT8945A because I am not familiar with the hardware and these
> properties were not documented anywhere.
> 
> The YAML schemas are a bit different than what is described in the old
> text files, because these were sometimes wrong or had missing
> information. This is the case for the ACT8600 documentation, which
> specified the valid node names for the regulators, while the driver was
> expecting different names. This led to the current situation where we
> have two different boards using different names for the regulators:
> - arch/mips/boot/dts/ingenic/ci20.dts uses the names documented in the
>   text file,
> - arch/mips/boot/dts/ingenic/gcw0.dts uses the names that the driver
>   expects.
> In theory, the driver should be fixed to follow the documentation, and
> accept both naming schemes. In practice though, when the PMIC node was
> added to the ci20.dts board file, the names were already wrong in
> regards to what the driver expected, so it never really worked
> correctly and wasn't tested properly. Furthermore, in that board the
> consumers of the regulators aren't working for various other reasons
> (invalid GPIOs, etc.).
> 
> For that reason, for the ACT8600 bindings I decided to only use the node
> names that the driver expects (and that gcw0.dts uses), instead of
> accepting both old and new names. A follow-up patch will update the CI20
> board to use the new regulator names.
> 
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> ---
> 
> Notes:
>     v2:
>     - Avoid | character in descriptions that can be single-line
>     - Remove unevaluatedProperties when additionalProperties is also present
>     - Remove useless inner parentheses in regular expressions
>     - Rename I2C nodes to just... i2c
>     - Remove node handles
>     
>     Note:
>     I set Liam Girdwood and Mark Brown as the maintainers by default, since
>     it doesn't appear that anybody is managing the Active-semi drivers, but
>     if anybody steps up I can update it.

It should not be Liam and Mark, but someone having/knowing this
particular hardware.

> 
>  .../bindings/regulator/act8865-regulator.txt  | 117 --------
>  .../bindings/regulator/act8945a-regulator.txt | 113 --------
>  .../regulator/active-semi,act8600.yaml        | 141 ++++++++++
>  .../regulator/active-semi,act8846.yaml        | 207 ++++++++++++++
>  .../regulator/active-semi,act8865.yaml        | 162 +++++++++++
>  .../regulator/active-semi,act8945a.yaml       | 261 ++++++++++++++++++
>  6 files changed, 771 insertions(+), 230 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/regulator/act8865-regulator.txt
>  delete mode 100644 Documentation/devicetree/bindings/regulator/act8945a-regulator.txt
>  create mode 100644 Documentation/devicetree/bindings/regulator/active-semi,act8600.yaml
>  create mode 100644 Documentation/devicetree/bindings/regulator/active-semi,act8846.yaml
>  create mode 100644 Documentation/devicetree/bindings/regulator/active-semi,act8865.yaml
>  create mode 100644 Documentation/devicetree/bindings/regulator/active-semi,act8945a.yaml
> 
> diff --git a/Documentation/devicetree/bindings/regulator/act8865-regulator.txt b/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
> deleted file mode 100644
> index b9f58e480349..000000000000
> --- a/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
> +++ /dev/null
> @@ -1,117 +0,0 @@
> -ACT88xx regulators
> --------------------
> -
> -Required properties:
> -- compatible: "active-semi,act8846" or "active-semi,act8865" or "active-semi,act8600"
> -- reg: I2C slave address
> -
> -Optional properties:
> -- system-power-controller: Telling whether or not this pmic is controlling
> -  the system power. See Documentation/devicetree/bindings/power/power-controller.txt .
> -- active-semi,vsel-high: Indicates the VSEL pin is high.
> -  If this property is missing, assume the VSEL pin is low(0).
> -
> -Optional input supply properties:
> -- for act8600:
> -  - vp1-supply: The input supply for DCDC_REG1
> -  - vp2-supply: The input supply for DCDC_REG2
> -  - vp3-supply: The input supply for DCDC_REG3
> -  - inl-supply: The input supply for LDO_REG5, LDO_REG6, LDO_REG7 and LDO_REG8
> -  SUDCDC_REG4, LDO_REG9 and LDO_REG10 do not have separate supplies.
> -- for act8846:
> -  - vp1-supply: The input supply for REG1
> -  - vp2-supply: The input supply for REG2
> -  - vp3-supply: The input supply for REG3
> -  - vp4-supply: The input supply for REG4
> -  - inl1-supply: The input supply for REG5, REG6 and REG7
> -  - inl2-supply: The input supply for REG8 and LDO_REG9
> -  - inl3-supply: The input supply for REG10, REG11 and REG12
> -- for act8865:
> -  - vp1-supply: The input supply for DCDC_REG1
> -  - vp2-supply: The input supply for DCDC_REG2
> -  - vp3-supply: The input supply for DCDC_REG3
> -  - inl45-supply: The input supply for LDO_REG1 and LDO_REG2
> -  - inl67-supply: The input supply for LDO_REG3 and LDO_REG4
> -
> -Any standard regulator properties can be used to configure the single regulator.
> -regulator-initial-mode, regulator-allowed-modes and regulator-mode could be specified
> -for act8865 using mode values from dt-bindings/regulator/active-semi,8865-regulator.h
> -file.
> -
> -The valid names for regulators are:
> -	- for act8846:
> -	REG1, REG2, REG3, REG4, REG5, REG6, REG7, REG8, REG9, REG10, REG11, REG12
> -	- for act8865:
> -	DCDC_REG1, DCDC_REG2, DCDC_REG3, LDO_REG1, LDO_REG2, LDO_REG3, LDO_REG4.
> -	- for act8600:
> -	DCDC_REG1, DCDC_REG2, DCDC_REG3, SUDCDC_REG4, LDO_REG5, LDO_REG6, LDO_REG7,
> -	LDO_REG8, LDO_REG9, LDO_REG10,
> -
> -Example:
> ---------
> -
> -#include <dt-bindings/regulator/active-semi,8865-regulator.h>
> -
> -		i2c1: i2c@f0018000 {
> -			pmic: act8865@5b {
> -				compatible = "active-semi,act8865";
> -				reg = <0x5b>;
> -				active-semi,vsel-high;
> -
> -				regulators {
> -					vcc_1v8_reg: DCDC_REG1 {
> -						regulator-name = "VCC_1V8";
> -						regulator-min-microvolt = <1800000>;
> -						regulator-max-microvolt = <1800000>;
> -						regulator-always-on;
> -					};
> -
> -					vcc_1v2_reg: DCDC_REG2 {
> -						regulator-name = "VCC_1V2";
> -						regulator-min-microvolt = <1100000>;
> -						regulator-max-microvolt = <1300000>;
> -						regulator-always-on;
> -
> -						regulator-allowed-modes = <ACT8865_REGULATOR_MODE_FIXED>,
> -									  <ACT8865_REGULATOR_MODE_LOWPOWER>;
> -						regulator-initial-mode = <ACT8865_REGULATOR_MODE_FIXED>;
> -
> -						regulator-state-mem {
> -							regulator-on-in-suspend;
> -							regulator-suspend-min-microvolt = <1150000>;
> -							regulator-suspend-max-microvolt = <1150000>;
> -							regulator-changeable-in-suspend;
> -							regulator-mode = <ACT8865_REGULATOR_MODE_LOWPOWER>;
> -						};
> -					};
> -
> -					vcc_3v3_reg: DCDC_REG3 {
> -						regulator-name = "VCC_3V3";
> -						regulator-min-microvolt = <3300000>;
> -						regulator-max-microvolt = <3300000>;
> -						regulator-always-on;
> -					};
> -
> -					vddana_reg: LDO_REG1 {
> -						regulator-name = "VDDANA";
> -						regulator-min-microvolt = <3300000>;
> -						regulator-max-microvolt = <3300000>;
> -						regulator-always-on;
> -
> -						regulator-allowed-modes = <ACT8865_REGULATOR_MODE_NORMAL>,
> -									  <ACT8865_REGULATOR_MODE_LOWPOWER>;
> -						regulator-initial-mode = <ACT8865_REGULATOR_MODE_NORMAL>;
> -
> -						regulator-state-mem {
> -							regulator-off-in-suspend;
> -						};
> -					};
> -
> -					vddfuse_reg: LDO_REG2 {
> -						regulator-name = "FUSE_2V5";
> -						regulator-min-microvolt = <2500000>;
> -						regulator-max-microvolt = <2500000>;
> -					};
> -				};
> -			};
> -		};
> diff --git a/Documentation/devicetree/bindings/regulator/act8945a-regulator.txt b/Documentation/devicetree/bindings/regulator/act8945a-regulator.txt
> deleted file mode 100644
> index 4017527619ab..000000000000
> --- a/Documentation/devicetree/bindings/regulator/act8945a-regulator.txt
> +++ /dev/null
> @@ -1,113 +0,0 @@
> -Device-Tree bindings for regulators of Active-semi ACT8945A Multi-Function Device
> -
> -Required properties:
> - - compatible: "active-semi,act8945a", please refer to ../mfd/act8945a.txt.
> -
> -Optional properties:
> -- active-semi,vsel-high: Indicates if the VSEL pin is set to logic-high.
> -  If this property is missing, assume the VSEL pin is set to logic-low.
> -
> -Optional input supply properties:
> -  - vp1-supply: The input supply for REG_DCDC1
> -  - vp2-supply: The input supply for REG_DCDC2
> -  - vp3-supply: The input supply for REG_DCDC3
> -  - inl45-supply: The input supply for REG_LDO1 and REG_LDO2
> -  - inl67-supply: The input supply for REG_LDO3 and REG_LDO4
> -
> -Any standard regulator properties can be used to configure the single regulator.
> -regulator-initial-mode, regulator-allowed-modes and regulator-mode could be
> -specified using mode values from dt-bindings/regulator/active-semi,8945a-regulator.h
> -file.
> -
> -The valid names for regulators are:
> -	REG_DCDC1, REG_DCDC2, REG_DCDC3, REG_LDO1, REG_LDO2, REG_LDO3, REG_LDO4.
> -
> -Example:
> -
> -#include <dt-bindings/regulator/active-semi,8945a-regulator.h>
> -
> -	pmic@5b {
> -		compatible = "active-semi,act8945a";
> -		reg = <0x5b>;
> -
> -		active-semi,vsel-high;
> -
> -		regulators {
> -			vdd_1v35_reg: REG_DCDC1 {
> -				regulator-name = "VDD_1V35";
> -				regulator-min-microvolt = <1350000>;
> -				regulator-max-microvolt = <1350000>;
> -				regulator-always-on;
> -
> -				regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>,
> -							  <ACT8945A_REGULATOR_MODE_LOWPOWER>;
> -				regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>;
> -
> -				regulator-state-mem {
> -					regulator-on-in-suspend;
> -					regulator-suspend-min-microvolt=<1400000>;
> -					regulator-suspend-max-microvolt=<1400000>;
> -					regulator-changeable-in-suspend;
> -					regulator-mode=<ACT8945A_REGULATOR_MODE_LOWPOWER>;
> -				};
> -			};
> -
> -			vdd_1v2_reg: REG_DCDC2 {
> -				regulator-name = "VDD_1V2";
> -				regulator-min-microvolt = <1100000>;
> -				regulator-max-microvolt = <1300000>;
> -				regulator-always-on;
> -
> -				regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>,
> -							  <ACT8945A_REGULATOR_MODE_LOWPOWER>;
> -				regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>;
> -
> -				regulator-state-mem {
> -					regulator-off-in-suspend;
> -				};
> -			};
> -
> -			vdd_3v3_reg: REG_DCDC3 {
> -				regulator-name = "VDD_3V3";
> -				regulator-min-microvolt = <3300000>;
> -				regulator-max-microvolt = <3300000>;
> -				regulator-always-on;
> -			};
> -
> -			vdd_fuse_reg: REG_LDO1 {
> -				regulator-name = "VDD_FUSE";
> -				regulator-min-microvolt = <2500000>;
> -				regulator-max-microvolt = <2500000>;
> -				regulator-always-on;
> -
> -				regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_NORMAL>,
> -							  <ACT8945A_REGULATOR_MODE_LOWPOWER>;
> -				regulator-initial-mode = <ACT8945A_REGULATOR_MODE_NORMAL>;
> -
> -				regulator-state-mem {
> -					regulator-off-in-suspend;
> -				};
> -			};
> -
> -			vdd_3v3_lp_reg: REG_LDO2 {
> -				regulator-name = "VDD_3V3_LP";
> -				regulator-min-microvolt = <3300000>;
> -				regulator-max-microvolt = <3300000>;
> -				regulator-always-on;
> -			};
> -
> -			vdd_led_reg: REG_LDO3 {
> -				regulator-name = "VDD_LED";
> -				regulator-min-microvolt = <3300000>;
> -				regulator-max-microvolt = <3300000>;
> -				regulator-always-on;
> -			};
> -
> -			vdd_sdhc_1v8_reg: REG_LDO4 {
> -				regulator-name = "VDD_SDHC_1V8";
> -				regulator-min-microvolt = <1800000>;
> -				regulator-max-microvolt = <1800000>;
> -				regulator-always-on;
> -			};
> -		};
> -	};
> diff --git a/Documentation/devicetree/bindings/regulator/active-semi,act8600.yaml b/Documentation/devicetree/bindings/regulator/active-semi,act8600.yaml
> new file mode 100644
> index 000000000000..ca0ac316dff2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/active-semi,act8600.yaml
> @@ -0,0 +1,141 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/regulator/active-semi,act8600.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Active-semi ACT8600 regulator
> +
> +maintainers:
> +  - Liam Girdwood <lgirdwood@gmail.com>
> +  - Mark Brown <broonie@kernel.org>
> +
> +properties:
> +  compatible:
> +    const: active-semi,act8600
> +
> +  reg:
> +    description: I2C address

Drop description, it's obvious. The same in other files.

> +    maxItems: 1
> +
> +  system-power-controller:
> +    description:
> +      Indicates that the ACT8600 is responsible for powering OFF
> +      the system.
> +    type: boolean
> +

(...)

> +examples:
> +  - |
> +    #include <dt-bindings/regulator/active-semi,8865-regulator.h>
> +
> +    i2c1 {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +      pmic: act8865@5b {
> +        compatible = "active-semi,act8865";
> +        reg = <0x5b>;
> +        active-semi,vsel-high;
> +
> +        regulators {
> +          vcc_1v8_reg: DCDC_REG1 {
> +            regulator-name = "VCC_1V8";
> +            regulator-min-microvolt = <1800000>;
> +            regulator-max-microvolt = <1800000>;
> +            regulator-always-on;
> +          };
> +
> +          vcc_1v2_reg: DCDC_REG2 {
> +            regulator-name = "VCC_1V2";
> +            regulator-min-microvolt = <1100000>;
> +            regulator-max-microvolt = <1300000>;
> +            regulator-always-on;
> +
> +            regulator-allowed-modes = <ACT8865_REGULATOR_MODE_FIXED>,
> +                                      <ACT8865_REGULATOR_MODE_LOWPOWER>;
> +            regulator-initial-mode = <ACT8865_REGULATOR_MODE_FIXED>;
> +
> +            regulator-state-mem {
> +              regulator-on-in-suspend;
> +              regulator-suspend-min-microvolt = <1150000>;
> +              regulator-suspend-max-microvolt = <1150000>;
> +              regulator-changeable-in-suspend;
> +              regulator-mode = <ACT8865_REGULATOR_MODE_LOWPOWER>;
> +            };
> +          };
> +
> +          vcc_3v3_reg: DCDC_REG3 {
> +            regulator-name = "VCC_3V3";
> +            regulator-min-microvolt = <3300000>;
> +            regulator-max-microvolt = <3300000>;
> +            regulator-always-on;
> +          };
> +
> +          vddana_reg: LDO_REG1 {
> +            regulator-name = "VDDANA";
> +            regulator-min-microvolt = <3300000>;
> +            regulator-max-microvolt = <3300000>;
> +            regulator-always-on;
> +
> +            regulator-allowed-modes = <ACT8865_REGULATOR_MODE_NORMAL>,
> +            <ACT8865_REGULATOR_MODE_LOWPOWER>;

Align it with previous <.

> +            regulator-initial-mode = <ACT8865_REGULATOR_MODE_NORMAL>;


(...)

> +
> +        charger {
> +          compatible = "active-semi,act8945a-charger";
> +          pinctrl-names = "default";
> +          pinctrl-0 = <&pinctrl_charger_chglev &pinctrl_charger_lbo &pinctrl_charger_irq>;
> +          interrupt-parent = <&pioA>;
> +          interrupts = <45 IRQ_TYPE_EDGE_RISING>;
> +
> +          active-semi,chglev-gpios = <&pioA 12 GPIO_ACTIVE_HIGH>;
> +          active-semi,lbo-gpios = <&pioA 72 GPIO_ACTIVE_LOW>;
> +          active-semi,input-voltage-threshold-microvolt = <6600>;
> +          active-semi,precondition-timeout = <40>;
> +          active-semi,total-timeout = <3>;
> +          status = "okay";

Drop status

> +        };
> +      };
> +    };

Best regards,
Krzysztof
  

Hi Krzysztof,

Le dim. 6 nov. 2022 à 10:55:11 +0100, Krzysztof Kozlowski 
<krzysztof.kozlowski@linaro.org> a écrit :
> On 05/11/2022 23:58, Paul Cercueil wrote:
>>  Create YAML bindings for the Active-semi PMICs and remove the old 
>> text
>>  files.
>> 
>>  The bindings aren't perfect, for instance I couldn't find good
>>  descriptions for the vendor properties in the "charger" node of the
>>  ACT8945A because I am not familiar with the hardware and these
>>  properties were not documented anywhere.
>> 
>>  The YAML schemas are a bit different than what is described in the 
>> old
>>  text files, because these were sometimes wrong or had missing
>>  information. This is the case for the ACT8600 documentation, which
>>  specified the valid node names for the regulators, while the driver 
>> was
>>  expecting different names. This led to the current situation where 
>> we
>>  have two different boards using different names for the regulators:
>>  - arch/mips/boot/dts/ingenic/ci20.dts uses the names documented in 
>> the
>>    text file,
>>  - arch/mips/boot/dts/ingenic/gcw0.dts uses the names that the driver
>>    expects.
>>  In theory, the driver should be fixed to follow the documentation, 
>> and
>>  accept both naming schemes. In practice though, when the PMIC node 
>> was
>>  added to the ci20.dts board file, the names were already wrong in
>>  regards to what the driver expected, so it never really worked
>>  correctly and wasn't tested properly. Furthermore, in that board the
>>  consumers of the regulators aren't working for various other reasons
>>  (invalid GPIOs, etc.).
>> 
>>  For that reason, for the ACT8600 bindings I decided to only use the 
>> node
>>  names that the driver expects (and that gcw0.dts uses), instead of
>>  accepting both old and new names. A follow-up patch will update the 
>> CI20
>>  board to use the new regulator names.
>> 
>>  Signed-off-by: Paul Cercueil <paul@crapouillou.net>
>>  ---
>> 
>>  Notes:
>>      v2:
>>      - Avoid | character in descriptions that can be single-line
>>      - Remove unevaluatedProperties when additionalProperties is 
>> also present
>>      - Remove useless inner parentheses in regular expressions
>>      - Rename I2C nodes to just... i2c
>>      - Remove node handles
>> 
>>      Note:
>>      I set Liam Girdwood and Mark Brown as the maintainers by 
>> default, since
>>      it doesn't appear that anybody is managing the Active-semi 
>> drivers, but
>>      if anybody steps up I can update it.
> 
> It should not be Liam and Mark, but someone having/knowing this
> particular hardware.

Well, who would that be?

I do have a board with the ACT8600, but that's about it.

-Paul

>> 
>>   .../bindings/regulator/act8865-regulator.txt  | 117 --------
>>   .../bindings/regulator/act8945a-regulator.txt | 113 --------
>>   .../regulator/active-semi,act8600.yaml        | 141 ++++++++++
>>   .../regulator/active-semi,act8846.yaml        | 207 ++++++++++++++
>>   .../regulator/active-semi,act8865.yaml        | 162 +++++++++++
>>   .../regulator/active-semi,act8945a.yaml       | 261 
>> ++++++++++++++++++
>>   6 files changed, 771 insertions(+), 230 deletions(-)
>>   delete mode 100644 
>> Documentation/devicetree/bindings/regulator/act8865-regulator.txt
>>   delete mode 100644 
>> Documentation/devicetree/bindings/regulator/act8945a-regulator.txt
>>   create mode 100644 
>> Documentation/devicetree/bindings/regulator/active-semi,act8600.yaml
>>   create mode 100644 
>> Documentation/devicetree/bindings/regulator/active-semi,act8846.yaml
>>   create mode 100644 
>> Documentation/devicetree/bindings/regulator/active-semi,act8865.yaml
>>   create mode 100644 
>> Documentation/devicetree/bindings/regulator/active-semi,act8945a.yaml
>> 
>>  diff --git 
>> a/Documentation/devicetree/bindings/regulator/act8865-regulator.txt 
>> b/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
>>  deleted file mode 100644
>>  index b9f58e480349..000000000000
>>  --- 
>> a/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
>>  +++ /dev/null
>>  @@ -1,117 +0,0 @@
>>  -ACT88xx regulators
>>  --------------------
>>  -
>>  -Required properties:
>>  -- compatible: "active-semi,act8846" or "active-semi,act8865" or 
>> "active-semi,act8600"
>>  -- reg: I2C slave address
>>  -
>>  -Optional properties:
>>  -- system-power-controller: Telling whether or not this pmic is 
>> controlling
>>  -  the system power. See 
>> Documentation/devicetree/bindings/power/power-controller.txt .
>>  -- active-semi,vsel-high: Indicates the VSEL pin is high.
>>  -  If this property is missing, assume the VSEL pin is low(0).
>>  -
>>  -Optional input supply properties:
>>  -- for act8600:
>>  -  - vp1-supply: The input supply for DCDC_REG1
>>  -  - vp2-supply: The input supply for DCDC_REG2
>>  -  - vp3-supply: The input supply for DCDC_REG3
>>  -  - inl-supply: The input supply for LDO_REG5, LDO_REG6, LDO_REG7 
>> and LDO_REG8
>>  -  SUDCDC_REG4, LDO_REG9 and LDO_REG10 do not have separate 
>> supplies.
>>  -- for act8846:
>>  -  - vp1-supply: The input supply for REG1
>>  -  - vp2-supply: The input supply for REG2
>>  -  - vp3-supply: The input supply for REG3
>>  -  - vp4-supply: The input supply for REG4
>>  -  - inl1-supply: The input supply for REG5, REG6 and REG7
>>  -  - inl2-supply: The input supply for REG8 and LDO_REG9
>>  -  - inl3-supply: The input supply for REG10, REG11 and REG12
>>  -- for act8865:
>>  -  - vp1-supply: The input supply for DCDC_REG1
>>  -  - vp2-supply: The input supply for DCDC_REG2
>>  -  - vp3-supply: The input supply for DCDC_REG3
>>  -  - inl45-supply: The input supply for LDO_REG1 and LDO_REG2
>>  -  - inl67-supply: The input supply for LDO_REG3 and LDO_REG4
>>  -
>>  -Any standard regulator properties can be used to configure the 
>> single regulator.
>>  -regulator-initial-mode, regulator-allowed-modes and regulator-mode 
>> could be specified
>>  -for act8865 using mode values from 
>> dt-bindings/regulator/active-semi,8865-regulator.h
>>  -file.
>>  -
>>  -The valid names for regulators are:
>>  -	- for act8846:
>>  -	REG1, REG2, REG3, REG4, REG5, REG6, REG7, REG8, REG9, REG10, 
>> REG11, REG12
>>  -	- for act8865:
>>  -	DCDC_REG1, DCDC_REG2, DCDC_REG3, LDO_REG1, LDO_REG2, LDO_REG3, 
>> LDO_REG4.
>>  -	- for act8600:
>>  -	DCDC_REG1, DCDC_REG2, DCDC_REG3, SUDCDC_REG4, LDO_REG5, LDO_REG6, 
>> LDO_REG7,
>>  -	LDO_REG8, LDO_REG9, LDO_REG10,
>>  -
>>  -Example:
>>  ---------
>>  -
>>  -#include <dt-bindings/regulator/active-semi,8865-regulator.h>
>>  -
>>  -		i2c1: i2c@f0018000 {
>>  -			pmic: act8865@5b {
>>  -				compatible = "active-semi,act8865";
>>  -				reg = <0x5b>;
>>  -				active-semi,vsel-high;
>>  -
>>  -				regulators {
>>  -					vcc_1v8_reg: DCDC_REG1 {
>>  -						regulator-name = "VCC_1V8";
>>  -						regulator-min-microvolt = <1800000>;
>>  -						regulator-max-microvolt = <1800000>;
>>  -						regulator-always-on;
>>  -					};
>>  -
>>  -					vcc_1v2_reg: DCDC_REG2 {
>>  -						regulator-name = "VCC_1V2";
>>  -						regulator-min-microvolt = <1100000>;
>>  -						regulator-max-microvolt = <1300000>;
>>  -						regulator-always-on;
>>  -
>>  -						regulator-allowed-modes = <ACT8865_REGULATOR_MODE_FIXED>,
>>  -									  <ACT8865_REGULATOR_MODE_LOWPOWER>;
>>  -						regulator-initial-mode = <ACT8865_REGULATOR_MODE_FIXED>;
>>  -
>>  -						regulator-state-mem {
>>  -							regulator-on-in-suspend;
>>  -							regulator-suspend-min-microvolt = <1150000>;
>>  -							regulator-suspend-max-microvolt = <1150000>;
>>  -							regulator-changeable-in-suspend;
>>  -							regulator-mode = <ACT8865_REGULATOR_MODE_LOWPOWER>;
>>  -						};
>>  -					};
>>  -
>>  -					vcc_3v3_reg: DCDC_REG3 {
>>  -						regulator-name = "VCC_3V3";
>>  -						regulator-min-microvolt = <3300000>;
>>  -						regulator-max-microvolt = <3300000>;
>>  -						regulator-always-on;
>>  -					};
>>  -
>>  -					vddana_reg: LDO_REG1 {
>>  -						regulator-name = "VDDANA";
>>  -						regulator-min-microvolt = <3300000>;
>>  -						regulator-max-microvolt = <3300000>;
>>  -						regulator-always-on;
>>  -
>>  -						regulator-allowed-modes = <ACT8865_REGULATOR_MODE_NORMAL>,
>>  -									  <ACT8865_REGULATOR_MODE_LOWPOWER>;
>>  -						regulator-initial-mode = <ACT8865_REGULATOR_MODE_NORMAL>;
>>  -
>>  -						regulator-state-mem {
>>  -							regulator-off-in-suspend;
>>  -						};
>>  -					};
>>  -
>>  -					vddfuse_reg: LDO_REG2 {
>>  -						regulator-name = "FUSE_2V5";
>>  -						regulator-min-microvolt = <2500000>;
>>  -						regulator-max-microvolt = <2500000>;
>>  -					};
>>  -				};
>>  -			};
>>  -		};
>>  diff --git 
>> a/Documentation/devicetree/bindings/regulator/act8945a-regulator.txt 
>> b/Documentation/devicetree/bindings/regulator/act8945a-regulator.txt
>>  deleted file mode 100644
>>  index 4017527619ab..000000000000
>>  --- 
>> a/Documentation/devicetree/bindings/regulator/act8945a-regulator.txt
>>  +++ /dev/null
>>  @@ -1,113 +0,0 @@
>>  -Device-Tree bindings for regulators of Active-semi ACT8945A 
>> Multi-Function Device
>>  -
>>  -Required properties:
>>  - - compatible: "active-semi,act8945a", please refer to 
>> ../mfd/act8945a.txt.
>>  -
>>  -Optional properties:
>>  -- active-semi,vsel-high: Indicates if the VSEL pin is set to 
>> logic-high.
>>  -  If this property is missing, assume the VSEL pin is set to 
>> logic-low.
>>  -
>>  -Optional input supply properties:
>>  -  - vp1-supply: The input supply for REG_DCDC1
>>  -  - vp2-supply: The input supply for REG_DCDC2
>>  -  - vp3-supply: The input supply for REG_DCDC3
>>  -  - inl45-supply: The input supply for REG_LDO1 and REG_LDO2
>>  -  - inl67-supply: The input supply for REG_LDO3 and REG_LDO4
>>  -
>>  -Any standard regulator properties can be used to configure the 
>> single regulator.
>>  -regulator-initial-mode, regulator-allowed-modes and regulator-mode 
>> could be
>>  -specified using mode values from 
>> dt-bindings/regulator/active-semi,8945a-regulator.h
>>  -file.
>>  -
>>  -The valid names for regulators are:
>>  -	REG_DCDC1, REG_DCDC2, REG_DCDC3, REG_LDO1, REG_LDO2, REG_LDO3, 
>> REG_LDO4.
>>  -
>>  -Example:
>>  -
>>  -#include <dt-bindings/regulator/active-semi,8945a-regulator.h>
>>  -
>>  -	pmic@5b {
>>  -		compatible = "active-semi,act8945a";
>>  -		reg = <0x5b>;
>>  -
>>  -		active-semi,vsel-high;
>>  -
>>  -		regulators {
>>  -			vdd_1v35_reg: REG_DCDC1 {
>>  -				regulator-name = "VDD_1V35";
>>  -				regulator-min-microvolt = <1350000>;
>>  -				regulator-max-microvolt = <1350000>;
>>  -				regulator-always-on;
>>  -
>>  -				regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>,
>>  -							  <ACT8945A_REGULATOR_MODE_LOWPOWER>;
>>  -				regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>;
>>  -
>>  -				regulator-state-mem {
>>  -					regulator-on-in-suspend;
>>  -					regulator-suspend-min-microvolt=<1400000>;
>>  -					regulator-suspend-max-microvolt=<1400000>;
>>  -					regulator-changeable-in-suspend;
>>  -					regulator-mode=<ACT8945A_REGULATOR_MODE_LOWPOWER>;
>>  -				};
>>  -			};
>>  -
>>  -			vdd_1v2_reg: REG_DCDC2 {
>>  -				regulator-name = "VDD_1V2";
>>  -				regulator-min-microvolt = <1100000>;
>>  -				regulator-max-microvolt = <1300000>;
>>  -				regulator-always-on;
>>  -
>>  -				regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>,
>>  -							  <ACT8945A_REGULATOR_MODE_LOWPOWER>;
>>  -				regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>;
>>  -
>>  -				regulator-state-mem {
>>  -					regulator-off-in-suspend;
>>  -				};
>>  -			};
>>  -
>>  -			vdd_3v3_reg: REG_DCDC3 {
>>  -				regulator-name = "VDD_3V3";
>>  -				regulator-min-microvolt = <3300000>;
>>  -				regulator-max-microvolt = <3300000>;
>>  -				regulator-always-on;
>>  -			};
>>  -
>>  -			vdd_fuse_reg: REG_LDO1 {
>>  -				regulator-name = "VDD_FUSE";
>>  -				regulator-min-microvolt = <2500000>;
>>  -				regulator-max-microvolt = <2500000>;
>>  -				regulator-always-on;
>>  -
>>  -				regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_NORMAL>,
>>  -							  <ACT8945A_REGULATOR_MODE_LOWPOWER>;
>>  -				regulator-initial-mode = <ACT8945A_REGULATOR_MODE_NORMAL>;
>>  -
>>  -				regulator-state-mem {
>>  -					regulator-off-in-suspend;
>>  -				};
>>  -			};
>>  -
>>  -			vdd_3v3_lp_reg: REG_LDO2 {
>>  -				regulator-name = "VDD_3V3_LP";
>>  -				regulator-min-microvolt = <3300000>;
>>  -				regulator-max-microvolt = <3300000>;
>>  -				regulator-always-on;
>>  -			};
>>  -
>>  -			vdd_led_reg: REG_LDO3 {
>>  -				regulator-name = "VDD_LED";
>>  -				regulator-min-microvolt = <3300000>;
>>  -				regulator-max-microvolt = <3300000>;
>>  -				regulator-always-on;
>>  -			};
>>  -
>>  -			vdd_sdhc_1v8_reg: REG_LDO4 {
>>  -				regulator-name = "VDD_SDHC_1V8";
>>  -				regulator-min-microvolt = <1800000>;
>>  -				regulator-max-microvolt = <1800000>;
>>  -				regulator-always-on;
>>  -			};
>>  -		};
>>  -	};
>>  diff --git 
>> a/Documentation/devicetree/bindings/regulator/active-semi,act8600.yaml 
>> b/Documentation/devicetree/bindings/regulator/active-semi,act8600.yaml
>>  new file mode 100644
>>  index 000000000000..ca0ac316dff2
>>  --- /dev/null
>>  +++ 
>> b/Documentation/devicetree/bindings/regulator/active-semi,act8600.yaml
>>  @@ -0,0 +1,141 @@
>>  +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>  +%YAML 1.2
>>  +---
>>  +$id: 
>> http://devicetree.org/schemas/regulator/active-semi,act8600.yaml#
>>  +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>  +
>>  +title: Active-semi ACT8600 regulator
>>  +
>>  +maintainers:
>>  +  - Liam Girdwood <lgirdwood@gmail.com>
>>  +  - Mark Brown <broonie@kernel.org>
>>  +
>>  +properties:
>>  +  compatible:
>>  +    const: active-semi,act8600
>>  +
>>  +  reg:
>>  +    description: I2C address
> 
> Drop description, it's obvious. The same in other files.
> 
>>  +    maxItems: 1
>>  +
>>  +  system-power-controller:
>>  +    description:
>>  +      Indicates that the ACT8600 is responsible for powering OFF
>>  +      the system.
>>  +    type: boolean
>>  +
> 
> (...)
> 
>>  +examples:
>>  +  - |
>>  +    #include <dt-bindings/regulator/active-semi,8865-regulator.h>
>>  +
>>  +    i2c1 {
>>  +      #address-cells = <1>;
>>  +      #size-cells = <0>;
>>  +
>>  +      pmic: act8865@5b {
>>  +        compatible = "active-semi,act8865";
>>  +        reg = <0x5b>;
>>  +        active-semi,vsel-high;
>>  +
>>  +        regulators {
>>  +          vcc_1v8_reg: DCDC_REG1 {
>>  +            regulator-name = "VCC_1V8";
>>  +            regulator-min-microvolt = <1800000>;
>>  +            regulator-max-microvolt = <1800000>;
>>  +            regulator-always-on;
>>  +          };
>>  +
>>  +          vcc_1v2_reg: DCDC_REG2 {
>>  +            regulator-name = "VCC_1V2";
>>  +            regulator-min-microvolt = <1100000>;
>>  +            regulator-max-microvolt = <1300000>;
>>  +            regulator-always-on;
>>  +
>>  +            regulator-allowed-modes = 
>> <ACT8865_REGULATOR_MODE_FIXED>,
>>  +                                      
>> <ACT8865_REGULATOR_MODE_LOWPOWER>;
>>  +            regulator-initial-mode = 
>> <ACT8865_REGULATOR_MODE_FIXED>;
>>  +
>>  +            regulator-state-mem {
>>  +              regulator-on-in-suspend;
>>  +              regulator-suspend-min-microvolt = <1150000>;
>>  +              regulator-suspend-max-microvolt = <1150000>;
>>  +              regulator-changeable-in-suspend;
>>  +              regulator-mode = <ACT8865_REGULATOR_MODE_LOWPOWER>;
>>  +            };
>>  +          };
>>  +
>>  +          vcc_3v3_reg: DCDC_REG3 {
>>  +            regulator-name = "VCC_3V3";
>>  +            regulator-min-microvolt = <3300000>;
>>  +            regulator-max-microvolt = <3300000>;
>>  +            regulator-always-on;
>>  +          };
>>  +
>>  +          vddana_reg: LDO_REG1 {
>>  +            regulator-name = "VDDANA";
>>  +            regulator-min-microvolt = <3300000>;
>>  +            regulator-max-microvolt = <3300000>;
>>  +            regulator-always-on;
>>  +
>>  +            regulator-allowed-modes = 
>> <ACT8865_REGULATOR_MODE_NORMAL>,
>>  +            <ACT8865_REGULATOR_MODE_LOWPOWER>;
> 
> Align it with previous <.
> 
>>  +            regulator-initial-mode = 
>> <ACT8865_REGULATOR_MODE_NORMAL>;
> 
> 
> (...)
> 
>>  +
>>  +        charger {
>>  +          compatible = "active-semi,act8945a-charger";
>>  +          pinctrl-names = "default";
>>  +          pinctrl-0 = <&pinctrl_charger_chglev 
>> &pinctrl_charger_lbo &pinctrl_charger_irq>;
>>  +          interrupt-parent = <&pioA>;
>>  +          interrupts = <45 IRQ_TYPE_EDGE_RISING>;
>>  +
>>  +          active-semi,chglev-gpios = <&pioA 12 GPIO_ACTIVE_HIGH>;
>>  +          active-semi,lbo-gpios = <&pioA 72 GPIO_ACTIVE_LOW>;
>>  +          active-semi,input-voltage-threshold-microvolt = <6600>;
>>  +          active-semi,precondition-timeout = <40>;
>>  +          active-semi,total-timeout = <3>;
>>  +          status = "okay";
> 
> Drop status
> 
>>  +        };
>>  +      };
>>  +    };
> 
> Best regards,
> Krzysztof
>
  

On 10/11/2022 22:08, Paul Cercueil wrote:
> Hi Krzysztof,
> 
> Le dim. 6 nov. 2022 à 10:55:11 +0100, Krzysztof Kozlowski 
> <krzysztof.kozlowski@linaro.org> a écrit :
>> On 05/11/2022 23:58, Paul Cercueil wrote:
>>>  Create YAML bindings for the Active-semi PMICs and remove the old 
>>> text
>>>  files.
>>>
>>>  The bindings aren't perfect, for instance I couldn't find good
>>>  descriptions for the vendor properties in the "charger" node of the
>>>  ACT8945A because I am not familiar with the hardware and these
>>>  properties were not documented anywhere.
>>>
>>>  The YAML schemas are a bit different than what is described in the 
>>> old
>>>  text files, because these were sometimes wrong or had missing
>>>  information. This is the case for the ACT8600 documentation, which
>>>  specified the valid node names for the regulators, while the driver 
>>> was
>>>  expecting different names. This led to the current situation where 
>>> we
>>>  have two different boards using different names for the regulators:
>>>  - arch/mips/boot/dts/ingenic/ci20.dts uses the names documented in 
>>> the
>>>    text file,
>>>  - arch/mips/boot/dts/ingenic/gcw0.dts uses the names that the driver
>>>    expects.
>>>  In theory, the driver should be fixed to follow the documentation, 
>>> and
>>>  accept both naming schemes. In practice though, when the PMIC node 
>>> was
>>>  added to the ci20.dts board file, the names were already wrong in
>>>  regards to what the driver expected, so it never really worked
>>>  correctly and wasn't tested properly. Furthermore, in that board the
>>>  consumers of the regulators aren't working for various other reasons
>>>  (invalid GPIOs, etc.).
>>>
>>>  For that reason, for the ACT8600 bindings I decided to only use the 
>>> node
>>>  names that the driver expects (and that gcw0.dts uses), instead of
>>>  accepting both old and new names. A follow-up patch will update the 
>>> CI20
>>>  board to use the new regulator names.
>>>
>>>  Signed-off-by: Paul Cercueil <paul@crapouillou.net>
>>>  ---
>>>
>>>  Notes:
>>>      v2:
>>>      - Avoid | character in descriptions that can be single-line
>>>      - Remove unevaluatedProperties when additionalProperties is 
>>> also present
>>>      - Remove useless inner parentheses in regular expressions
>>>      - Rename I2C nodes to just... i2c
>>>      - Remove node handles
>>>
>>>      Note:
>>>      I set Liam Girdwood and Mark Brown as the maintainers by 
>>> default, since
>>>      it doesn't appear that anybody is managing the Active-semi 
>>> drivers, but
>>>      if anybody steps up I can update it.
>>
>> It should not be Liam and Mark, but someone having/knowing this
>> particular hardware.
> 
> Well, who would that be?
> 
> I do have a board with the ACT8600, but that's about it.

You or driver maintainer or recent contributors.

Best regards,
Krzysztof