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 - interrupt-parent        : a phandle pointing to the interrupt controller
  12                             serving the interrupt for this chip
  13 - interrupts              : interrupt specification for the gsl1680 interrupt
  14 - power-gpios             : Specification for the pin connected to the gsl1680's
  15                             shutdown input. This needs to be driven high to take the
  16                             gsl1680 out of its low power state
  17 - touchscreen-size-x      : See touchscreen.txt
  18 - touchscreen-size-y      : See touchscreen.txt
  19
  20 Optional properties:
  21 - firmware-name           : File basename (string) for board specific firmware
  22 - touchscreen-inverted-x  : See touchscreen.txt
  23 - touchscreen-inverted-y  : See touchscreen.txt
  24 - touchscreen-swapped-x-y : See touchscreen.txt
  25 - silead,max-fingers      : maximum number of fingers the touchscreen can detect
  26 - silead,home-button      : Boolean, set to true on devices which have a
  27                             capacitive home-button build into the touchscreen
  28 - vddio-supply            : regulator phandle for controller VDDIO
  29 - avdd-supply             : regulator phandle for controller AVDD
  30
  31 Example:
  32
  33 i2c@00000000 {
  34         gsl1680: touchscreen@40 {
  35                 compatible = "silead,gsl1680";
  36                 reg = <0x40>;
  37                 interrupt-parent = <&pio>;
  38                 interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>;
  39                 power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>;
  40                 touchscreen-size-x = <480>;
  41                 touchscreen-size-y = <800>;
  42                 touchscreen-inverted-x;
  43                 touchscreen-swapped-x-y;
  44                 silead,max-fingers = <5>;
  45         };
  46 };