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 Index: linux-2.6.25.4/arch/mips/au1000/mtx-1/platform.c
   6 ===================================================================
   7 --- linux-2.6.25.4.orig/arch/mips/au1000/mtx-1/platform.c
   8 +++ linux-2.6.25.4/arch/mips/au1000/mtx-1/platform.c
   9 @@ -23,9 +23,32 @@
  10  #include <linux/types.h>
  11  #include <linux/platform_device.h>
  12  #include <linux/leds.h>
  13 +#include <linux/gpio_keys.h>
  14 +#include <linux/input.h>
  15
  16  #include <asm/gpio.h>
  17
  18 +static struct gpio_keys_button mtx1_gpio_button[] = {
  19 +       {
  20 +               .gpio = 207,
  21 +               .code = BTN_0,
  22 +               .desc = "System button",
  23 +       }
  24 +};
  25 +
  26 +static struct gpio_keys_platform_data mtx1_buttons_data = {
  27 +       .buttons = mtx1_gpio_button,
  28 +       .nbuttons = ARRAY_SIZE(mtx1_gpio_button),
  29 +};
  30 +
  31 +static struct platform_device mtx1_button = {
  32 +       .name = "gpio-keys",
  33 +       .id = -1,
  34 +       .dev = {
  35 +               .platform_data = &mtx1_buttons_data,
  36 +       }
  37 +};
  38 +
  39  static struct resource mtx1_wdt_res[] = {
  40         [0] = {
  41                 .start = 15,
  42 @@ -62,11 +85,13 @@ static struct platform_device mtx1_gpio_
  43
  44  static struct platform_device *mtx1_devs[] = {
  45         &mtx1_gpio_leds,
  46 -       &mtx1_wdt
  47 +       &mtx1_wdt,
  48 +       &mtx1_button
  49  };
  50
  51  static int __init mtx1_register_devices(void)
  52  {
  53 +       gpio_direction_input(207);
  54         return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
  55  }
  56