target/linux/atheros/patches-3.18/210-reset_button.patch

   1 --- a/arch/mips/ath25/Makefile
   2 +++ b/arch/mips/ath25/Makefile
   3 @@ -8,7 +8,7 @@
   4  # Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
   5  #
   6
   7 -obj-y += board.o prom.o devices.o
   8 +obj-y += board.o prom.o devices.o reset.o
   9
  10  obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
  11
  12 --- /dev/null
  13 +++ b/arch/mips/ath25/reset.c
  14 @@ -0,0 +1,58 @@
  15 +#include <linux/init.h>
  16 +#include <linux/slab.h>
  17 +#include <linux/platform_device.h>
  18 +#include <linux/gpio_keys.h>
  19 +#include <linux/input.h>
  20 +#include <ath25_platform.h>
  21 +#include <ar231x.h>
  22 +#include "devices.h"
  23 +
  24 +static int __init
  25 +ar231x_init_reset(void)
  26 +{
  27 +       struct platform_device *pdev;
  28 +       struct gpio_keys_platform_data pdata;
  29 +       struct gpio_keys_button *p;
  30 +       int err;
  31 +
  32 +       if (ath25_board.config->reset_config_gpio == 0xffff)
  33 +               return -ENODEV;
  34 +
  35 +       p = kzalloc(sizeof(*p), GFP_KERNEL);
  36 +       if (!p)
  37 +               goto err;
  38 +
  39 +       p->desc = "reset";
  40 +       p->type = EV_KEY;
  41 +       p->code = KEY_RESTART;
  42 +       p->debounce_interval = 60;
  43 +       p->gpio = ath25_board.config->reset_config_gpio;
  44 +
  45 +       memset(&pdata, 0, sizeof(pdata));
  46 +       pdata.poll_interval = 20;
  47 +       pdata.buttons = p;
  48 +       pdata.nbuttons = 1;
  49 +
  50 +       pdev = platform_device_alloc("gpio-keys-polled", 0);
  51 +       if (!pdev)
  52 +               goto err_free;
  53 +
  54 +       err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
  55 +       if (err)
  56 +               goto err_put_pdev;
  57 +
  58 +       err = platform_device_add(pdev);
  59 +       if (err)
  60 +               goto err_put_pdev;
  61 +
  62 +       return 0;
  63 +
  64 +err_put_pdev:
  65 +       platform_device_put(pdev);
  66 +err_free:
  67 +       kfree(p);
  68 +err:
  69 +       return -ENOMEM;
  70 +}
  71 +
  72 +module_init(ar231x_init_reset);