target/linux/au1000/patches/002-sys_btn_gpio.patch

   1 This patch adds support for the GPIO connected system button on the MTX-1 boards. Default configuration is updated accordingly.
   2
   3 Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
   4 ---
   5 --- a/arch/mips/au1000/mtx-1/platform.c
   6 +++ b/arch/mips/au1000/mtx-1/platform.c
   7 @@ -23,9 +23,32 @@
   8  #include <linux/types.h>
   9  #include <linux/platform_device.h>
  10  #include <linux/leds.h>
  11 +#include <linux/gpio_keys.h>
  12 +#include <linux/input.h>
  13
  14  #include <asm/gpio.h>
  15
  16 +static struct gpio_keys_button mtx1_gpio_button[] = {
  17 +       {
  18 +               .gpio = 207,
  19 +               .code = BTN_0,
  20 +               .desc = "System button",
  21 +       }
  22 +};
  23 +
  24 +static struct gpio_keys_platform_data mtx1_buttons_data = {
  25 +       .buttons = mtx1_gpio_button,
  26 +       .nbuttons = ARRAY_SIZE(mtx1_gpio_button),
  27 +};
  28 +
  29 +static struct platform_device mtx1_button = {
  30 +       .name = "gpio-keys",
  31 +       .id = -1,
  32 +       .dev = {
  33 +               .platform_data = &mtx1_buttons_data,
  34 +       }
  35 +};
  36 +
  37  static struct resource mtx1_wdt_res[] = {
  38         [0] = {
  39                 .start = 15,
  40 @@ -62,11 +85,13 @@ static struct platform_device mtx1_gpio_
  41
  42  static struct platform_device *mtx1_devs[] = {
  43         &mtx1_gpio_leds,
  44 -       &mtx1_wdt
  45 +       &mtx1_wdt,
  46 +       &mtx1_button
  47  };
  48
  49  static int __init mtx1_register_devices(void)
  50  {
  51 +       gpio_direction_input(207);
  52         return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
  53  }
  54