| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | * Rohm BU21013 Touch Screen |
| 2 | |
| 3 | Required properties: |
| 4 | - compatible : "rohm,bu21013_tp" |
| 5 | - reg : I2C device address |
| 6 | - reset-gpios : GPIO pin enabling (selecting) chip (CS) |
| 7 | - interrupt-parent : the phandle for the gpio controller |
| 8 | - interrupts : (gpio) interrupt to which the chip is connected |
| 9 | |
| 10 | Optional properties: |
| 11 | - touch-gpios : GPIO pin registering a touch event |
| 12 | - <supply_name>-supply : Phandle to a regulator supply |
| 13 | - touchscreen-size-x : General touchscreen binding, see [1]. |
| 14 | - touchscreen-size-y : General touchscreen binding, see [1]. |
| 15 | - touchscreen-inverted-x : General touchscreen binding, see [1]. |
| 16 | - touchscreen-inverted-y : General touchscreen binding, see [1]. |
| 17 | - touchscreen-swapped-x-y : General touchscreen binding, see [1]. |
| 18 | |
| 19 | [1] All general touchscreen properties are described in |
| 20 | Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt. |
| 21 | |
| 22 | Deprecated properties: |
| 23 | - rohm,touch-max-x : Maximum outward permitted limit in the X axis |
| 24 | - rohm,touch-max-y : Maximum outward permitted limit in the Y axis |
| 25 | - rohm,flip-x : Flip touch coordinates on the X axis |
| 26 | - rohm,flip-y : Flip touch coordinates on the Y axis |
| 27 | |
| 28 | Example: |
| 29 | |
| 30 | i2c@80110000 { |
| 31 | bu21013_tp@5c { |
| 32 | compatible = "rohm,bu21013_tp"; |
| 33 | reg = <0x5c>; |
| 34 | interrupt-parent = <&gpio2>; |
| 35 | interrupts <&20 IRQ_TYPE_LEVEL_LOW>; |
| 36 | touch-gpio = <&gpio2 20 GPIO_ACTIVE_LOW>; |
| 37 | avdd-supply = <&ab8500_ldo_aux1_reg>; |
| 38 | |
| 39 | touchscreen-size-x = <384>; |
| 40 | touchscreen-size-y = <704>; |
| 41 | touchscreen-inverted-y; |
| 42 | }; |
| 43 | }; |