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|
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/mediatek,mt6357.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek MT6357 PMIC
maintainers:
- Flora Fu <flora.fu@mediatek.com>
- Alexandre Mergnat <amergnat@baylibre.com>
description: |
MT6357 is a power management system chip containing 5 buck
converters and 29 LDOs. Supported features are audio codec,
USB battery charging, fuel gauge, RTC
This is a multifunction device with the following sub modules:
- Regulator
- RTC
- Keys
It is interfaced to host controller using SPI interface by a proprietary hardware
called PMIC wrapper or pwrap. This MFD is a child device of pwrap.
See the following for pwrap node definitions:
Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml
properties:
compatible:
const: mediatek,mt6357
interrupts:
maxItems: 1
interrupt-controller: true
"#interrupt-cells":
const: 2
mediatek,hp-pull-down:
description:
Earphone driver positive output stage short to
the audio reference ground.
type: boolean
mediatek,micbias0-microvolt:
description: Selects MIC Bias 0 output voltage.
enum: [1700000, 1800000, 1900000, 2000000,
2100000, 2500000, 2600000, 2700000]
default: 1700000
mediatek,micbias1-microvolt:
description: Selects MIC Bias 1 output voltage.
enum: [1700000, 1800000, 1900000, 2000000,
2100000, 2500000, 2600000, 2700000]
default: 1700000
regulators:
type: object
$ref: /schemas/regulator/mediatek,mt6357-regulator.yaml
unevaluatedProperties: false
description:
List of MT6357 BUCKs and LDOs regulators.
rtc:
type: object
$ref: /schemas/rtc/rtc.yaml#
unevaluatedProperties: false
description:
MT6357 Real Time Clock.
properties:
compatible:
const: mediatek,mt6357-rtc
start-year: true
required:
- compatible
keys:
type: object
$ref: /schemas/input/mediatek,pmic-keys.yaml
unevaluatedProperties: false
description:
MT6357 power and home keys.
required:
- compatible
- regulators
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
pwrap {
pmic {
compatible = "mediatek,mt6357";
interrupt-parent = <&pio>;
interrupts = <145 IRQ_TYPE_LEVEL_HIGH>;
interrupt-controller;
#interrupt-cells = <2>;
mediatek,micbias0-microvolt = <1700000>;
mediatek,micbias1-microvolt = <1700000>;
regulators {
mt6357_vproc_reg: buck-vproc {
regulator-name = "vproc";
regulator-min-microvolt = <518750>;
regulator-max-microvolt = <1312500>;
regulator-ramp-delay = <6250>;
regulator-enable-ramp-delay = <220>;
regulator-always-on;
};
// ...
mt6357_vusb33_reg: ldo-vusb33 {
regulator-name = "vusb33";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3100000>;
regulator-enable-ramp-delay = <264>;
};
};
rtc {
compatible = "mediatek,mt6357-rtc";
};
keys {
compatible = "mediatek,mt6357-keys";
};
};
};
|
