Bindings/input/touchscreen/bu21013.txt

   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         };