arch/mips/cobalt/buttons.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Cobalt buttons platform device.
   4  *
   5  *  Copyright (C) 2007  Yoichi Yuasa <yuasa@linux-mips.org>
   6  */
   7
   8 #include <linux/platform_device.h>
   9 #include <linux/errno.h>
  10 #include <linux/init.h>
  11
  12 static struct resource cobalt_buttons_resource __initdata = {
  13         .start  = 0x1d000000,
  14         .end    = 0x1d000003,
  15         .flags  = IORESOURCE_MEM,
  16 };
  17
  18 static __init int cobalt_add_buttons(void)
  19 {
  20         struct platform_device *pd;
  21         int error;
  22
  23         pd = platform_device_alloc("Cobalt buttons", -1);
  24         if (!pd)
  25                 return -ENOMEM;
  26
  27         error = platform_device_add_resources(pd, &cobalt_buttons_resource, 1);
  28         if (error)
  29                 goto err_free_device;
  30
  31         error = platform_device_add(pd);
  32         if (error)
  33                 goto err_free_device;
  34
  35         return 0;
  36
  37  err_free_device:
  38         platform_device_put(pd);
  39         return error;
  40 }
  41 device_initcall(cobalt_add_buttons);