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Date: Mon, 7 Mar 2022 18:08:23 +0800
From: cy_huang <u0084500@...il.com>
To: broonie@...nel.org, robh+dt@...nel.org
Cc: lgirdwood@...il.com, cy_huang@...htek.com,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH 1/2] dt-bindings: regulator: Add bindings for Richtek RT5190A PMIC
From: ChiYuan Huang <cy_huang@...htek.com>
Add bindings for Richtek RT5190A PMIC.
Signed-off-by: ChiYuan Huang <cy_huang@...htek.com>
---
.../regulator/richtek,rt5190a-regulator.yaml | 138 +++++++++++++++++++++
1 file changed, 138 insertions(+)
create mode 100644 Documentation/devicetree/bindings/regulator/richtek,rt5190a-regulator.yaml
diff --git a/Documentation/devicetree/bindings/regulator/richtek,rt5190a-regulator.yaml b/Documentation/devicetree/bindings/regulator/richtek,rt5190a-regulator.yaml
new file mode 100644
index 00000000..b9f5836
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/richtek,rt5190a-regulator.yaml
@@ -0,0 +1,138 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/richtek,rt5190a-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Richtek RT5190A PMIC Regulator
+
+maintainers:
+ - ChiYuan Huang <cy_huang@...htek.com>
+
+description: |
+ The RT5190A integrates 1 channel buck controller, 3 channels high efficiency
+ synchronous buck converters, 1 LDO, I2C control interface and peripherial
+ logical control.
+
+ It also supports mute AC OFF depop sound and quick setting storage while
+ input power is removed.
+
+properties:
+ compatible:
+ enum:
+ - richtek,rt5190a
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vin2-supply:
+ description: phandle to buck2 input voltage.
+
+ vin3-supply:
+ description: phandle to buck3 input voltage.
+
+ vin4-supply:
+ description: phandle to buck4 input voltage.
+
+ vinldo-supply:
+ description: phandle to ldo input voltage
+
+ richtek,buck1-fixed-microvolt:
+ description: buck1 fixed voltage that depends on the external resistor.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+
+ richtek,buck4-fixed-microvolt:
+ description: buck4 fixed voltage that depends on the external resistor.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+
+ richtek,ldo-fixed-microvolt:
+ description: ldo fixed voltage that depends on the external resistor.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+
+ richtek,mute-enable:
+ description: this can be used to enable mute function.
+ type: boolean
+
+ regulators:
+ type: object
+
+ patternProperties:
+ "^buck[1-4]$|^ldo$":
+ type: object
+ $ref: regulator.yaml#
+ description: |
+ regulator description for buck[1-4] and ldo.
+
+ properties:
+ richtek,latchup-enable:
+ type: boolean
+ description: |
+ If specified, undervolt protection mode changes from the default
+ hiccup to latchup.
+
+ unevaluatedProperties: false
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - richtek,buck1-fixed-microvolt
+ - richtek,buck4-fixed-microvolt
+ - richtek,ldo-fixed-microvolt
+ - regulators
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rt5190a@64 {
+ compatible = "richtek,rt5190a";
+ reg = <0x64>;
+ interrupts-extended = <&gpio26 0 IRQ_TYPE_LEVEL_LOW>;
+ vin2-supply = <&rt5190_buck1>;
+ vin3-supply = <&rt5190_buck1>;
+ vin4-supply = <&rt5190_buck1>;
+ richtek,buck1-fixed-microvolt = <5090000>;
+ richtek,buck4-fixed-microvolt = <850000>;
+ richtek,ldo-fixed-microvolt = <1200000>;
+
+ regulators {
+ rt5190_buck1: buck1 {
+ regulator-name = "rt5190a-buck1";
+ regulator-allowed-modes = <0 1>;
+ regulator-boot-on;
+ };
+ buck2 {
+ regulator-name = "rt5190a-buck2";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-boot-on;
+ };
+ buck3 {
+ regulator-name = "rt5190a-buck3";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-boot-on;
+ };
+ buck4 {
+ regulator-name = "rt5190a-buck4";
+ regulator-allowed-modes = <0 1>;
+ regulator-boot-on;
+ };
+ ldo {
+ regulator-name = "rt5190a-ldo";
+ regulator-boot-on;
+ };
+ };
+ };
+ };
--
2.7.4
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