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Diffstat (limited to 'Documentation/devicetree/bindings/input/cypress,tm2-touchkey.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/input/cypress,tm2-touchkey.txt | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/cypress,tm2-touchkey.txt b/Documentation/devicetree/bindings/input/cypress,tm2-touchkey.txt new file mode 100644 index 000000000..921172f68 --- /dev/null +++ b/Documentation/devicetree/bindings/input/cypress,tm2-touchkey.txt @@ -0,0 +1,33 @@ +Samsung tm2-touchkey + +Required properties: +- compatible: + * "cypress,tm2-touchkey" - for the touchkey found on the tm2 board + * "cypress,midas-touchkey" - for the touchkey found on midas boards + * "cypress,aries-touchkey" - for the touchkey found on aries boards + * "coreriver,tc360-touchkey" - for the Coreriver TouchCore 360 touchkey +- reg: I2C address of the chip. +- interrupts: interrupt to which the chip is connected (see interrupt + binding[0]). +- vcc-supply : internal regulator output. 1.8V +- vdd-supply : power supply for IC 3.3V + +Optional properties: +- linux,keycodes: array of keycodes (max 4), default KEY_PHONE and KEY_BACK + +[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt + +Example: + &i2c0 { + /* ... */ + + touchkey@20 { + compatible = "cypress,tm2-touchkey"; + reg = <0x20>; + interrupt-parent = <&gpa3>; + interrupts = <2 IRQ_TYPE_EDGE_FALLING>; + vcc-supply=<&ldo32_reg>; + vdd-supply=<&ldo33_reg>; + linux,keycodes = <KEY_PHONE KEY_BACK>; + }; + }; |