| * 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) | |
| - interrupt-parent : the phandle to the interrupt controller which provides | |
| the interrupt | |
| - 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>; | |
| }; | |
| }; |