From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- Documentation/devicetree/bindings/mfd/mt6397.txt | 110 +++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/mt6397.txt (limited to 'Documentation/devicetree/bindings/mfd/mt6397.txt') diff --git a/Documentation/devicetree/bindings/mfd/mt6397.txt b/Documentation/devicetree/bindings/mfd/mt6397.txt new file mode 100644 index 0000000000..10540aa7af --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/mt6397.txt @@ -0,0 +1,110 @@ +MediaTek MT6397/MT6323 Multifunction Device Driver + +MT6397/MT6323 is a multifunction device with the following sub modules: +- Regulator +- RTC +- Audio codec +- GPIO +- Clock +- LED +- Keys +- Power controller + +It is interfaced to host controller using SPI interface by a proprietary hardware +called PMIC wrapper or pwrap. MT6397/MT6323 MFD is a child device of pwrap. +See the following for pwarp node definitions: +../soc/mediatek/mediatek,pwrap.yaml + +This document describes the binding for MFD device and its sub module. + +Required properties: +compatible: + "mediatek,mt6323" for PMIC MT6323 + "mediatek,mt6331" for PMIC MT6331 and MT6332 + "mediatek,mt6357" for PMIC MT6357 + "mediatek,mt6358" for PMIC MT6358 + "mediatek,mt6359" for PMIC MT6359 + "mediatek,mt6366", "mediatek,mt6358" for PMIC MT6366 + "mediatek,mt6397" for PMIC MT6397 + +Optional subnodes: + +- rtc + Required properties: Should be one of follows + - compatible: "mediatek,mt6323-rtc" + - compatible: "mediatek,mt6331-rtc" + - compatible: "mediatek,mt6358-rtc" + - compatible: "mediatek,mt6397-rtc" + For details, see ../rtc/rtc-mt6397.txt +- regulators + Required properties: + - compatible: "mediatek,mt6323-regulator" + see ../regulator/mt6323-regulator.txt + - compatible: "mediatek,mt6358-regulator" + - compatible: "mediatek,mt6366-regulator", "mediatek-mt6358-regulator" + see ../regulator/mt6358-regulator.txt + - compatible: "mediatek,mt6397-regulator" + see ../regulator/mt6397-regulator.txt +- codec + Required properties: + - compatible: "mediatek,mt6397-codec" or "mediatek,mt6358-sound" +- clk + Required properties: + - compatible: "mediatek,mt6397-clk" +- led + Required properties: + - compatible: "mediatek,mt6323-led" + see ../leds/leds-mt6323.txt + +- keys + Required properties: Should be one of the following + - compatible: "mediatek,mt6323-keys" + - compatible: "mediatek,mt6331-keys" + - compatible: "mediatek,mt6397-keys" + see ../input/mtk-pmic-keys.txt + +- power-controller + Required properties: + - compatible: "mediatek,mt6323-pwrc" + For details, see ../power/reset/mt6323-poweroff.txt + +- pin-controller + Required properties: + - compatible: "mediatek,mt6397-pinctrl" + For details, see ../pinctrl/pinctrl-mt65xx.txt + +Example: + pwrap: pwrap@1000f000 { + compatible = "mediatek,mt8135-pwrap"; + + ... + + pmic { + compatible = "mediatek,mt6397"; + + codec: mt6397codec { + compatible = "mediatek,mt6397-codec"; + }; + + regulators { + compatible = "mediatek,mt6397-regulator"; + + mt6397_vpca15_reg: buck_vpca15 { + regulator-compatible = "buck_vpca15"; + regulator-name = "vpca15"; + regulator-min-microvolt = <850000>; + regulator-max-microvolt = <1400000>; + regulator-ramp-delay = <12500>; + regulator-always-on; + }; + + mt6397_vgp4_reg: ldo_vgp4 { + regulator-compatible = "ldo_vgp4"; + regulator-name = "vgp4"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3300000>; + regulator-enable-ramp-delay = <218>; + }; + }; + }; + }; -- cgit v1.2.3