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