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Date: Thu, 26 Oct 2023 07:51:31 +0200 (CEST)
From: Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>
cc: Lee Jones <lee@...nel.org>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, devicetree@...r.kernel.org,
linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] dt-bindings: mfd: ams,as3711: Convert to
json-schema
Hi Geert,
Sorry for a late reply. I just noticed that you specified me as a
maintainer of as3711 code in your new file. Even though I did author the
original version of the driver more than 10 years ago, I haven't worked on
it for a long time, so I think it would be better to pick up a more
relevant person there.
Thanks
Guennadi
On Wed, 25 Oct 2023, Geert Uytterhoeven wrote:
> Convert the Austria MicroSystems AS3711 Quad Buck High Current PMIC with
> Charger Device Tree binding documentation to json-schema.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> ---
> v2:
> - Consistently use "DC/DC" and "step-up",
> - Move {additional,unevaluated}Properties in subnodes up to improve
> readability,
> - Split dependencies in dependent{Required,Schemas} to fix multiple
> dependencies,
> - s/oneof/oneOf/ (flagged by dt-schema as of commit 411c305105dd1273
> ("meta-schemas: Check sub-schemas of "dependencies" and
> "dependentSchemas"")),
> - Use pmic recommended node name.
> ---
> .../devicetree/bindings/mfd/ams,as3711.yaml | 223 ++++++++++++++++++
> .../devicetree/bindings/mfd/as3711.txt | 73 ------
> 2 files changed, 223 insertions(+), 73 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/mfd/ams,as3711.yaml
> delete mode 100644 Documentation/devicetree/bindings/mfd/as3711.txt
>
> diff --git a/Documentation/devicetree/bindings/mfd/ams,as3711.yaml b/Documentation/devicetree/bindings/mfd/ams,as3711.yaml
> new file mode 100644
> index 0000000000000000..ad8649cbb2ccef34
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/ams,as3711.yaml
> @@ -0,0 +1,223 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/ams,as3711.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Austria MicroSystems AS3711 Quad Buck High Current PMIC with Charger
> +
> +maintainers:
> + - Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>
> +
> +description:
> + AS3711 is an I2C PMIC from Austria MicroSystems with multiple DC/DC and LDO
> + power supplies, a battery charger and an RTC. So far only bindings for the
> + two step-up DC/DC converters are defined.
> +
> +properties:
> + compatible:
> + const: ams,as3711
> +
> + reg:
> + maxItems: 1
> +
> + backlight:
> + description:
> + Step-up converter configuration, to be used as a backlight source
> + type: object
> + additionalProperties: false
> + properties:
> + compatible:
> + const: ams,as3711-bl
> +
> + su1-dev:
> + description: Framebuffer phandle for the first step-up converter
> + $ref: /schemas/types.yaml#/definitions/phandle
> +
> + su1-max-uA:
> + description: Maximum current for the first step-up converter
> + $ref: /schemas/types.yaml#/definitions/uint32
> +
> + su2-dev:
> + description: Framebuffer phandle for the second step-up converter
> + $ref: /schemas/types.yaml#/definitions/phandle
> +
> + su2-max-uA:
> + description: Maximum current for the second step-up converter
> + $ref: /schemas/types.yaml#/definitions/uint32
> +
> + su2-feedback-voltage:
> + description: Second step-up converter uses voltage feedback
> + type: boolean
> +
> + su2-feedback-curr1:
> + description:
> + Second step-up converter uses CURR1 input for current feedback
> + type: boolean
> +
> + su2-feedback-curr2:
> + description:
> + Second step-up converter uses CURR2 input for current feedback
> + type: boolean
> +
> + su2-feedback-curr3:
> + description:
> + Second step-up converter uses CURR3 input for current feedback
> + type: boolean
> +
> + su2-feedback-curr-auto:
> + description:
> + Second step-up converter uses automatic current feedback selection
> + type: boolean
> +
> + su2-fbprot-lx-sd4:
> + description:
> + Second step-up converter uses LX_SD4 for over-voltage protection
> + type: boolean
> +
> + su2-fbprot-gpio2:
> + description:
> + Second step-up converter uses GPIO2 for over-voltage protection
> + type: boolean
> +
> + su2-fbprot-gpio3:
> + description:
> + Second step-up converter uses GPIO3 for over-voltage protection
> + type: boolean
> +
> + su2-fbprot-gpio4:
> + description:
> + Second step-up converter uses GPIO4 for over-voltage protection
> + type: boolean
> +
> + su2-auto-curr1:
> + description:
> + Second step-up converter uses CURR1 input for automatic current
> + feedback
> + type: boolean
> +
> + su2-auto-curr2:
> + description:
> + Second step-up converter uses CURR2 input for automatic current
> + feedback
> + type: boolean
> +
> + su2-auto-curr3:
> + description:
> + Second step-up converter uses CURR3 input for automatic current
> + feedback
> + type: boolean
> +
> + required:
> + - compatible
> +
> + dependentRequired:
> + # To use the SU1 converter as a backlight source the following two
> + # properties must be provided:
> + su1-dev: [ su1-max-uA ]
> + su1-max-uA: [ su1-dev ]
> +
> + # To use the SU2 converter as a backlight source the following two
> + # properties must be provided:
> + su2-dev: [ su2-max-uA ]
> + su2-max-uA: [ su2-dev ]
> +
> + su2-feedback-voltage: [ su2-dev ]
> + su2-feedback-curr1: [ su2-dev ]
> + su2-feedback-curr2: [ su2-dev ]
> + su2-feedback-curr3: [ su2-dev ]
> + su2-feedback-curr-auto: [ su2-dev ]
> + su2-fbprot-lx-sd4: [ su2-dev ]
> + su2-fbprot-gpio2: [ su2-dev ]
> + su2-fbprot-gpio3: [ su2-dev ]
> + su2-fbprot-gpio4: [ su2-dev ]
> + su2-auto-curr1: [ su2-feedback-curr-auto ]
> + su2-auto-curr2: [ su2-feedback-curr-auto ]
> + su2-auto-curr3: [ su2-feedback-curr-auto ]
> +
> + dependentSchemas:
> + su2-dev:
> + allOf:
> + - oneOf:
> + - required:
> + - su2-feedback-voltage
> + - required:
> + - su2-feedback-curr1
> + - required:
> + - su2-feedback-curr2
> + - required:
> + - su2-feedback-curr3
> + - required:
> + - su2-feedback-curr-auto
> + - oneOf:
> + - required:
> + - su2-fbprot-lx-sd4
> + - required:
> + - su2-fbprot-gpio2
> + - required:
> + - su2-fbprot-gpio3
> + - required:
> + - su2-fbprot-gpio4
> +
> + su2-feedback-curr-auto:
> + anyOf:
> + - required:
> + - su2-auto-curr1
> + - required:
> + - su2-auto-curr2
> + - required:
> + - su2-auto-curr3
> +
> + regulators:
> + description: Other DC/DC and LDO supplies
> + type: object
> + unevaluatedProperties: false
> + patternProperties:
> + "^(sd[1-4]|ldo[1-8])$":
> + type: object
> + $ref: /schemas/regulator/regulator.yaml#
> + unevaluatedProperties: false
> +
> +required:
> + - compatible
> + - reg
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pmic@40 {
> + compatible = "ams,as3711";
> + reg = <0x40>;
> +
> + regulators {
> + sd4 {
> + regulator-name = "1.215V";
> + regulator-min-microvolt = <1215000>;
> + regulator-max-microvolt = <1235000>;
> + };
> + ldo2 {
> + regulator-name = "2.8V CPU";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> + };
> +
> + backlight {
> + compatible = "ams,as3711-bl";
> + su2-dev = <&lcdc>;
> + su2-max-uA = <36000>;
> + su2-feedback-curr-auto;
> + su2-fbprot-gpio4;
> + su2-auto-curr1;
> + su2-auto-curr2;
> + su2-auto-curr3;
> + };
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/mfd/as3711.txt b/Documentation/devicetree/bindings/mfd/as3711.txt
> deleted file mode 100644
> index d98cf18c721ceb18..0000000000000000
> --- a/Documentation/devicetree/bindings/mfd/as3711.txt
> +++ /dev/null
> @@ -1,73 +0,0 @@
> -AS3711 is an I2C PMIC from Austria MicroSystems with multiple DCDC and LDO power
> -supplies, a battery charger and an RTC. So far only bindings for the two stepup
> -DCDC converters are defined. Other DCDC and LDO supplies are configured, using
> -standard regulator properties, they must belong to a sub-node, called
> -"regulators" and be called "sd1" to "sd4" and "ldo1" to "ldo8." Stepup converter
> -configuration should be placed in a subnode, called "backlight."
> -
> -Compulsory properties:
> -- compatible : must be "ams,as3711"
> -- reg : specifies the I2C address
> -
> -To use the SU1 converter as a backlight source the following two properties must
> -be provided:
> -- su1-dev : framebuffer phandle
> -- su1-max-uA : maximum current
> -
> -To use the SU2 converter as a backlight source the following two properties must
> -be provided:
> -- su2-dev : framebuffer phandle
> -- su1-max-uA : maximum current
> -
> -Additionally one of these properties must be provided to select the type of
> -feedback used:
> -- su2-feedback-voltage : voltage feedback is used
> -- su2-feedback-curr1 : CURR1 input used for current feedback
> -- su2-feedback-curr2 : CURR2 input used for current feedback
> -- su2-feedback-curr3 : CURR3 input used for current feedback
> -- su2-feedback-curr-auto: automatic current feedback selection
> -
> -and one of these to select the over-voltage protection pin
> -- su2-fbprot-lx-sd4 : LX_SD4 is used for over-voltage protection
> -- su2-fbprot-gpio2 : GPIO2 is used for over-voltage protection
> -- su2-fbprot-gpio3 : GPIO3 is used for over-voltage protection
> -- su2-fbprot-gpio4 : GPIO4 is used for over-voltage protection
> -
> -If "su2-feedback-curr-auto" is selected, one or more of the following properties
> -have to be specified:
> -- su2-auto-curr1 : use CURR1 input for current feedback
> -- su2-auto-curr2 : use CURR2 input for current feedback
> -- su2-auto-curr3 : use CURR3 input for current feedback
> -
> -Example:
> -
> -as3711@40 {
> - compatible = "ams,as3711";
> - reg = <0x40>;
> -
> - regulators {
> - sd4 {
> - regulator-name = "1.215V";
> - regulator-min-microvolt = <1215000>;
> - regulator-max-microvolt = <1235000>;
> - };
> - ldo2 {
> - regulator-name = "2.8V CPU";
> - regulator-min-microvolt = <2800000>;
> - regulator-max-microvolt = <2800000>;
> - regulator-always-on;
> - regulator-boot-on;
> - };
> - };
> -
> - backlight {
> - compatible = "ams,as3711-bl";
> - su2-dev = <&lcdc>;
> - su2-max-uA = <36000>;
> - su2-feedback-curr-auto;
> - su2-fbprot-gpio4;
> - su2-auto-curr1;
> - su2-auto-curr2;
> - su2-auto-curr3;
> - };
> -};
> --
> 2.34.1
>
>
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