arch/mips/cobalt/led.c

   1 /*
   2  *  Registration of Cobalt LED platform device.
   3  *
   4  *  Copyright (C) 2007  Yoichi Yuasa <yuasa@linux-mips.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20 #include <linux/errno.h>
  21 #include <linux/init.h>
  22 #include <linux/ioport.h>
  23 #include <linux/platform_device.h>
  24
  25 #include <cobalt.h>
  26
  27 static struct resource cobalt_led_resource __initdata = {
  28         .start  = 0x1c000000,
  29         .end    = 0x1c000000,
  30         .flags  = IORESOURCE_MEM,
  31 };
  32
  33 static __init int cobalt_led_add(void)
  34 {
  35         struct platform_device *pdev;
  36         int retval;
  37
  38         if (cobalt_board_id == COBALT_BRD_ID_QUBE1 ||
  39             cobalt_board_id == COBALT_BRD_ID_QUBE2)
  40                 pdev = platform_device_alloc("cobalt-qube-leds", -1);
  41         else
  42                 pdev = platform_device_alloc("cobalt-raq-leds", -1);
  43
  44         if (!pdev)
  45                 return -ENOMEM;
  46
  47         retval = platform_device_add_resources(pdev, &cobalt_led_resource, 1);
  48         if (retval)
  49                 goto err_free_device;
  50
  51         retval = platform_device_add(pdev);
  52         if (retval)
  53                 goto err_free_device;
  54
  55         return 0;
  56
  57 err_free_device:
  58         platform_device_put(pdev);
  59
  60         return retval;
  61 }
  62 device_initcall(cobalt_led_add);