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MediaTek MT6397/MT6323 PMIC Keys Device Driver
There are two key functions provided by MT6397/MT6323 PMIC, pwrkey
and homekey. The key functions are defined as the subnode of the function
node provided by MT6397/MT6323 PMIC that is being defined as one kind
of Muti-Function Device (MFD)
For MT6397/MT6323 MFD bindings see:
Documentation/devicetree/bindings/mfd/mt6397.txt
Required properties:
- compatible: "mediatek,mt6397-keys" or "mediatek,mt6323-keys"
- linux,keycodes: See Documentation/devicetree/bindings/input/keys.txt
Optional Properties:
- wakeup-source: See Documentation/devicetree/bindings/power/wakeup-source.txt
- mediatek,long-press-mode: Long press key shutdown setting, 1 for
pwrkey only, 2 for pwrkey/homekey together, others for disabled.
- power-off-time-sec: See Documentation/devicetree/bindings/input/keys.txt
Example:
pmic: mt6397 {
compatible = "mediatek,mt6397";
...
mt6397keys: mt6397keys {
compatible = "mediatek,mt6397-keys";
mediatek,long-press-mode = <1>;
power-off-time-sec = <0>;
power {
linux,keycodes = <116>;
wakeup-source;
};
home {
linux,keycodes = <114>;
};
};
};
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