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Date: Mon, 23 Oct 2023 20:38:07 +0200
From: Geert Uytterhoeven <geert+renesas@...der.be>
To: 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>
Cc: devicetree@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
linux-kernel@...r.kernel.org,
Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH RFC] dt-bindings: mfd: ams,as3711: Convert to json-schema
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>
---
RFC, as I couldn't get the multiple dependencies right (see FIXMEs):
1. How to incorporate "su2-dev: [ su2-max-uA ]" and
"su2-feedback-curr-auto: [ su2-dev ]"?
2. su2-dev requiring one of su2-fbprot-* does not seem to work?
Anyone with better *Of foo? Thanks!
---
.../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..d9f08e017194c4f8
--- /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 DCDC and LDO
+ power supplies, a battery charger and an RTC. So far only bindings for the
+ two stepup DCDC 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
+ 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
+
+ dependencies:
+ # 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:
+ # FIXME How to incorporate "su2-dev: [ su2-max-uA ]"?
+ # FIXME su2-dev requiring one of su2-fbprot-* does not seem to work?
+ 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-max-uA: [ su2-dev ]
+ su2-feedback-voltage: [ su2-dev ]
+ su2-feedback-curr1: [ su2-dev ]
+ su2-feedback-curr2: [ su2-dev ]
+ su2-feedback-curr3: [ su2-dev ]
+ # FIXME How to incorporate "su2-feedback-curr-auto: [ su2-dev ]"?
+ su2-feedback-curr-auto:
+ anyOf:
+ - required:
+ - su2-auto-curr1
+ - required:
+ - su2-auto-curr2
+ - required:
+ - su2-auto-curr3
+ 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 ]
+
+ additionalProperties: false
+
+ regulators:
+ description: Other DCDC and LDO supplies
+ type: object
+ patternProperties:
+ "^(sd[1-4]|ldo[1-8])$":
+ type: object
+ $ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ 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;
+ };
+ };
+ };
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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