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: "mediatek,mt6397-keys" or "mediatek,mt6323-keys" 13- linux,keycodes: See Documentation/devicetree/bindings/input/input.yaml 14 15Optional Properties: 16- wakeup-source: See Documentation/devicetree/bindings/power/wakeup-source.txt 17- mediatek,long-press-mode: Long press key shutdown setting, 1 for 18 pwrkey only, 2 for pwrkey/homekey together, others for disabled. 19- power-off-time-sec: See Documentation/devicetree/bindings/input/input.yaml 20 21Example: 22 23 pmic: mt6397 { 24 compatible = "mediatek,mt6397"; 25 26 ... 27 28 mt6397keys: mt6397keys { 29 compatible = "mediatek,mt6397-keys"; 30 mediatek,long-press-mode = <1>; 31 power-off-time-sec = <0>; 32 33 power { 34 linux,keycodes = <116>; 35 wakeup-source; 36 }; 37 38 home { 39 linux,keycodes = <114>; 40 }; 41 }; 42 43 }; 44