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- * ST-Microelectronics FingerTip touchscreen controller
- The ST-Microelectronics FingerTip device provides a basic touchscreen
- functionality. Along with it the user can enable the touchkey which can work as
- a basic HOME and BACK key for phones.
- The driver supports also hovering as an absolute single touch event with x, y, z
- coordinates.
- Required properties:
- - compatible : must be "st,stmfts"
- - reg : I2C slave address, (e.g. 0x49)
- - interrupts : interrupt specification
- - avdd-supply : analogic power supply
- - vdd-supply : power supply
- - touchscreen-size-x : see touchscreen.txt
- - touchscreen-size-y : see touchscreen.txt
- Optional properties:
- - touch-key-connected : specifies whether the touchkey feature is connected
- - ledvdd-supply : power supply to the touch key leds
- Example:
- i2c@00000000 {
- /* ... */
- touchscreen@49 {
- compatible = "st,stmfts";
- reg = <0x49>;
- interrupt-parent = <&gpa1>;
- interrupts = <1 IRQ_TYPE_NONE>;
- touchscreen-size-x = <1599>;
- touchscreen-size-y = <2559>;
- touch-key-connected;
- avdd-supply = <&ldo30_reg>;
- vdd-supply = <&ldo31_reg>;
- ledvdd-supply = <&ldo33_reg>;
- };
- };
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