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regulator: Add MAX8893 bindings

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Add Maxim MAX8893 PMIC device tree bindings. The example is also
provided.

Signed-off-by: Sergey Larin <cerg2010cerg2010@mail.ru>
Link: https://lore.kernel.org/r/20210618141607.884-2-cerg2010cerg2010@mail.ru
Signed-off-by: Mark Brown <broonie@kernel.org>
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Sergey Larin 2021-06-18 17:16:07 +03:00 committed by Mark Brown
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commit 01c5741b82
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Documentation/devicetree/bindings/regulator/max8893.yaml Normal file
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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/regulator/max8893.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Regulator driver for MAX8893 PMIC from Maxim Integrated.
maintainers:
- Sergey Larin <cerg2010cerg2010@mail.ru>
description: |
The device has 5 LDO regulators and a single BUCK regulator.
Programming is done through I2C bus.
properties:
compatible:
const: maxim,max8893
reg:
maxItems: 1
regulators:
type: object
patternProperties:
"^(ldo[1-5]|buck)$":
$ref: "regulator.yaml#"
additionalProperties: false
additionalProperties: false
required:
- compatible
- reg
- regulators
examples:
- |
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic@3e {
compatible = "maxim,max8893";
reg = <0x3e>;
regulators {
/* Front camera - s5k6aafx, back - m5mo */
/* Numbers used to indicate the sequence */
front_1_back_1: buck {
regulator-name = "cam_isp_core_1v2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
};
front_4_back_5: ldo1 {
regulator-name = "vt_io_1v8,cam_isp_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
front_3_back_4: ldo2 {
regulator-name = "vt_core_1v5";
regulator-min-microvolt = <1500000>;
regulator-max-microvolt = <1500000>;
};
front_5_back_6: ldo3 {
regulator-name = "vt_cam_1v8,vt_sensor_io_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
ldo4 {
/* not used */
};
back_7: ldo5 {
regulator-name = "cam_sensor_io_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
};
};
};
...