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linux
mfd: dt-bindings: Add bindings for the MediaTek MT6397 PMIC
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
authored by
Sascha Hauer
and committed by
Lee Jones
d3591df3
6df8dd5c
+70
+70
Documentation/devicetree/bindings/mfd/mt6397.txt
+70
Documentation/devicetree/bindings/mfd/mt6397.txt
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MediaTek MT6397 Multifunction Device Driver
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MT6397 is a multifunction device with the following sub modules:
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- Regulator
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- RTC
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- Audio codec
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- GPIO
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- Clock
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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. MT6397 MFD is a child device of pwrap.
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See the following for pwarp node definitions:
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Documentation/devicetree/bindings/soc/pwrap.txt
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This document describes the binding for MFD device and its sub module.
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Required properties:
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compatible: "mediatek,mt6397"
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Optional subnodes:
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- rtc
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Required properties:
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- compatible: "mediatek,mt6397-rtc"
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- regulators
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Required properties:
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- compatible: "mediatek,mt6397-regulator"
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see Documentation/devicetree/bindings/regulator/mt6397-regulator.txt
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- codec
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Required properties:
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- compatible: "mediatek,mt6397-codec"
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- clk
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Required properties:
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- compatible: "mediatek,mt6397-clk"
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Example:
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pwrap: pwrap@1000f000 {
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compatible = "mediatek,mt8135-pwrap";
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...
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pmic {
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compatible = "mediatek,mt6397";
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codec: mt6397codec {
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compatible = "mediatek,mt6397-codec";
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};
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regulators {
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compatible = "mediatek,mt6397-regulator";
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mt6397_vpca15_reg: buck_vpca15 {
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regulator-compatible = "buck_vpca15";
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regulator-name = "vpca15";
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regulator-min-microvolt = <850000>;
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regulator-max-microvolt = <1400000>;
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regulator-ramp-delay = <12500>;
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regulator-always-on;
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};
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mt6397_vgp4_reg: ldo_vgp4 {
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regulator-compatible = "ldo_vgp4";
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regulator-name = "vgp4";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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regulator-enable-ramp-delay = <218>;
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};
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};
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};
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};