1MediaTek MT6397/MT6323 PMIC Keys Device Driver 2 3There are two key functions provided by MT6397/MT6323 PMIC, pwrkey 4and homekey. The key functions are defined as the subnode of the function 5node provided by MT6397/MT6323 PMIC that is being defined as one kind 6of Muti-Function Device (MFD) 7 8For MT6397/MT6323 MFD bindings see: 9Documentation/devicetree/bindings/mfd/mt6397.txt 10 11Required properties: 12- compatible: Should be one of: 13 - "mediatek,mt6397-keys" 14 - "mediatek,mt6323-keys" 15 - "mediatek,mt6358-keys" 16- linux,keycodes: See Documentation/devicetree/bindings/input/input.yaml 17 18Optional Properties: 19- wakeup-source: See Documentation/devicetree/bindings/power/wakeup-source.txt 20- mediatek,long-press-mode: Long press key shutdown setting, 1 for 21 pwrkey only, 2 for pwrkey/homekey together, others for disabled. 22- power-off-time-sec: See Documentation/devicetree/bindings/input/input.yaml 23 24Example: 25 26 pmic: mt6397 { 27 compatible = "mediatek,mt6397"; 28 29 ... 30 31 mt6397keys: mt6397keys { 32 compatible = "mediatek,mt6397-keys"; 33 mediatek,long-press-mode = <1>; 34 power-off-time-sec = <0>; 35 36 power { 37 linux,keycodes = <116>; 38 wakeup-source; 39 }; 40 41 home { 42 linux,keycodes = <114>; 43 }; 44 }; 45 46 }; 47