git.rot13.org Git - linux-gpio-pinout/blob - device-tree/EPSON-B184.dts

   1 /dts-v1/;
   2 /plugin/;
   3
   4 / {
   5         compatible = "allwinner,sun4i-a10", "allwinner,sun7i-a20", "allwinner,sun50i-a64", "allwinner,sun50i-h5";
   6
   7         /*
   8          * This fragment is needed only for the internal pull-up activation,
   9          * external pull-up resistor is highly recommended if using long wires
  10          *
  11          * if you connect vcc to keyboard board, remote this fragment!
  12          */
  13
  14         fragment@0 {
  15                 target = <&pio>;
  16                 __overlay__ {
  17                         gpio_button_0: gpio_button_0 {
  18                                 pins = "PE11","PE10","PE9", "PE8";
  19                                 function = "gpio_in";
  20                                 /* bias-pull-down; */
  21                         };
  22                 };
  23         };
  24
  25         fragment@1 {
  26                 target-path = "/";
  27                 __overlay__ {
  28                         EPSON-B184 {
  29                                 /*
  30                                  * Use "gpio-keys" for EINT capable pins, "gpio-keys-polled" for other pins
  31                                  * add "poll-interval" property if using "gpio-keys-polled"
  32                                  */
  33 /*
  34                                 compatible = "gpio-keys";
  35 */
  36                                 compatible = "gpio-keys-polled";
  37                                 poll-interval = <100>;
  38                                 autorepeat;
  39
  40                                 pinctrl-names = "default";
  41                                 pinctrl-0 = <&gpio_button_0>;
  42
  43                                 kp_1 {
  44                                         label = "Keypad 1";
  45                                         linux,code = <79>; /* KEY_KP1, see include/uapi/linux/input-event-codes.h */
  46                                         gpios = <&pio 4 11 0>; /* PE11 GPIO_ACTIVE_HIGH */
  47                                 };
  48
  49                                 kp_2 {
  50                                         label = "Keypad 2";
  51                                         linux,code = <80>; /* KEY_KP2, see include/uapi/linux/input-event-codes.h */
  52                                         gpios = <&pio 4 10 0>; /* PE10 GPIO_ACTIVE_HIGH */
  53                                 };
  54
  55                                 kp_3 {
  56                                         label = "Keypad 3";
  57                                         linux,code = <81>; /* KEY_KP3, see include/uapi/linux/input-event-codes.h */
  58                                         gpios = <&pio 4 9 0>; /* PE9 GPIO_ACTIVE_HIGH */
  59                                 };
  60
  61                                 kp_0 {
  62                                         label = "Keypad 0";
  63                                         linux,code = <82>; /* KEY_KP0, see include/uapi/linux/input-event-codes.h */
  64                                         gpios = <&pio 4 8 0>; /* PE8 GPIO_ACTIVE_HIGH */
  65                                 };
  66                         };
  67                 };
  68         };
  69 };