| * 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>; |
| }; |
| }; |
