Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt

   1 * GSL 1680 touchscreen controller
   2
   3 Required properties:
   4 - compatible              : Must be one of the following, depending on the model:
   5                             "silead,gsl1680"
   6                             "silead,gsl1688"
   7                             "silead,gsl3670"
   8                             "silead,gsl3675"
   9                             "silead,gsl3692"
  10 - reg                     : I2C slave address of the chip (0x40)
  11 - interrupts              : interrupt specification for the gsl1680 interrupt
  12 - power-gpios             : Specification for the pin connected to the gsl1680's
  13                             shutdown input. This needs to be driven high to take the
  14                             gsl1680 out of its low power state
  15 - touchscreen-size-x      : See touchscreen.txt
  16 - touchscreen-size-y      : See touchscreen.txt
  17
  18 Optional properties:
  19 - firmware-name           : File basename (string) for board specific firmware
  20 - touchscreen-inverted-x  : See touchscreen.txt
  21 - touchscreen-inverted-y  : See touchscreen.txt
  22 - touchscreen-swapped-x-y : See touchscreen.txt
  23 - silead,max-fingers      : maximum number of fingers the touchscreen can detect
  24 - silead,home-button      : Boolean, set to true on devices which have a
  25                             capacitive home-button build into the touchscreen
  26 - vddio-supply            : regulator phandle for controller VDDIO
  27 - avdd-supply             : regulator phandle for controller AVDD
  28
  29 Example:
  30
  31 i2c@00000000 {
  32         gsl1680: touchscreen@40 {
  33                 compatible = "silead,gsl1680";
  34                 reg = <0x40>;
  35                 interrupt-parent = <&pio>;
  36                 interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>;
  37                 power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>;
  38                 touchscreen-size-x = <480>;
  39                 touchscreen-size-y = <800>;
  40                 touchscreen-inverted-x;
  41                 touchscreen-swapped-x-y;
  42                 silead,max-fingers = <5>;
  43         };
  44 };