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