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Message-Id: <20211125074826.7947-2-krzysztof.kozlowski@canonical.com>
Date: Thu, 25 Nov 2021 08:48:25 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To: Lee Jones <lee.jones@...aro.org>, Rob Herring <robh+dt@...nel.org>,
Chanwoo Choi <cw00.choi@...sung.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Rob Herring <robh@...nel.org>
Subject: [PATCH v3 1/2] regulator: dt-bindings: maxim,max77686: convert to dtschema
Convert the regulators of Maxim MAX77686 PMIC to DT schema format.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Acked-by: Mark Brown <broonie@...nel.org>
Reviewed-by: Rob Herring <robh@...nel.org>
---
Changes since v2:
1. Rebased.
2. Add Rob's tag.
Changes since v1:
1. Split regulator nodes pattern on those supporting ena-gpios and those
don't.
2. Drop regulator-name from properties.
3. Add Mark's tag.
---
.../bindings/regulator/max77686.txt | 71 ----------------
.../bindings/regulator/maxim,max77686.yaml | 83 +++++++++++++++++++
MAINTAINERS | 1 +
3 files changed, 84 insertions(+), 71 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/regulator/max77686.txt
create mode 100644 Documentation/devicetree/bindings/regulator/maxim,max77686.yaml
diff --git a/Documentation/devicetree/bindings/regulator/max77686.txt b/Documentation/devicetree/bindings/regulator/max77686.txt
deleted file mode 100644
index ff3d2dec8c4b..000000000000
--- a/Documentation/devicetree/bindings/regulator/max77686.txt
+++ /dev/null
@@ -1,71 +0,0 @@
-Binding for Maxim MAX77686 regulators
-
-This is a part of the device tree bindings of MAX77686 multi-function device.
-More information can be found in ../mfd/max77686.txt file.
-
-The MAX77686 PMIC has 9 high-efficiency Buck and 26 Low-DropOut (LDO)
-regulators that can be controlled over I2C.
-
-Following properties should be present in main device node of the MFD chip.
-
-Optional node:
-- voltage-regulators : The regulators of max77686 have to be instantiated
- under subnode named "voltage-regulators" using the following format.
-
- regulator_name {
- regulator-compatible = LDOn/BUCKn
- standard regulator constraints....
- };
- refer Documentation/devicetree/bindings/regulator/regulator.txt
-
- The regulator node's name should be initialized with a string
-to get matched with their hardware counterparts as follow:
-
- -LDOn : for LDOs, where n can lie in range 1 to 26.
- example: LDO1, LDO2, LDO26.
- -BUCKn : for BUCKs, where n can lie in range 1 to 9.
- example: BUCK1, BUCK5, BUCK9.
-
- Regulators which can be turned off during system suspend:
- -LDOn : 2, 6-8, 10-12, 14-16,
- -BUCKn : 1-4.
- Use standard regulator bindings for it ('regulator-off-in-suspend').
-
- LDO20, LDO21, LDO22, BUCK8 and BUCK9 can be configured to GPIO enable
- control. To turn this feature on this property must be added to the regulator
- sub-node:
- - maxim,ena-gpios : one GPIO specifier enable control (the gpio
- flags are actually ignored and always
- ACTIVE_HIGH is used)
-
-Example:
-
- max77686: pmic@9 {
- compatible = "maxim,max77686";
- interrupt-parent = <&wakeup_eint>;
- interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
- reg = <0x09>;
-
- voltage-regulators {
- ldo11_reg: LDO11 {
- regulator-name = "vdd_ldo11";
- regulator-min-microvolt = <1900000>;
- regulator-max-microvolt = <1900000>;
- regulator-always-on;
- };
-
- buck1_reg: BUCK1 {
- regulator-name = "vdd_mif";
- regulator-min-microvolt = <950000>;
- regulator-max-microvolt = <1300000>;
- regulator-always-on;
- regulator-boot-on;
- };
-
- buck9_reg: BUCK9 {
- regulator-name = "CAM_ISP_CORE_1.2V";
- regulator-min-microvolt = <1000000>;
- regulator-max-microvolt = <1200000>;
- maxim,ena-gpios = <&gpm0 3 GPIO_ACTIVE_HIGH>;
- };
- };
diff --git a/Documentation/devicetree/bindings/regulator/maxim,max77686.yaml b/Documentation/devicetree/bindings/regulator/maxim,max77686.yaml
new file mode 100644
index 000000000000..bb64b679f765
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/maxim,max77686.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/maxim,max77686.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX77686 Power Management IC regulators
+
+maintainers:
+ - Chanwoo Choi <cw00.choi@...sung.com>
+ - Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
+
+description: |
+ This is a part of device tree bindings for Maxim MAX77686 Power Management
+ Integrated Circuit (PMIC).
+
+ The Maxim MAX77686 provides high-efficiency Buck and 26 Low-DropOut (LDO)
+ regulators.
+
+ See also Documentation/devicetree/bindings/mfd/maxim,max77686.yaml for
+ additional information and example.
+
+patternProperties:
+ # 26 LDOs
+ "^LDO([1-9]|1[0-9]|2[3-6])$":
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+ description: |
+ Properties for single LDO regulator.
+ Regulators which can be turned off during system suspend:
+ LDO2, LDO6-8, LDO10-12, LDO14-16
+
+ required:
+ - regulator-name
+
+ # LDO20-LDO22 with maxim,ena-gpios
+ "^LDO2[0-2]$":
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+ description: |
+ Properties for single LDO regulator.
+
+ properties:
+ maxim,ena-gpios:
+ maxItems: 1
+ description: |
+ GPIO specifier to enable the GPIO control (on/off) for regulator.
+
+ required:
+ - regulator-name
+
+ # 9 bucks
+ "^BUCK[1-7]$":
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+ description: |
+ Properties for single BUCK regulator.
+ Regulators which can be turned off during system suspend:
+ BUCK[1-4]
+
+ required:
+ - regulator-name
+
+ "^BUCK[89]$":
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+ description: |
+ Properties for single BUCK regulator.
+
+ properties:
+ maxim,ena-gpios:
+ maxItems: 1
+ description: |
+ GPIO specifier to enable the GPIO control (on/off) for regulator.
+
+ required:
+ - regulator-name
+
+additionalProperties: false
diff --git a/MAINTAINERS b/MAINTAINERS
index 00ad0cb5cb05..aa12b807d3f5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11661,6 +11661,7 @@ M: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
L: linux-kernel@...r.kernel.org
S: Supported
F: Documentation/devicetree/bindings/*/max77686.txt
+F: Documentation/devicetree/bindings/*/maxim,max77686.yaml
F: Documentation/devicetree/bindings/clock/maxim,max77686.txt
F: Documentation/devicetree/bindings/mfd/max14577.txt
F: Documentation/devicetree/bindings/mfd/max77693.txt
--
2.32.0
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