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kernel/linux-imx6_3.14.28/arch/mips/mti-sead3/sead3-leds.c 1.79 KB
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  /*
   * This file is subject to the terms and conditions of the GNU General Public
   * License.  See the file "COPYING" in the main directory of this archive
   * for more details.
   *
   * Copyright (C) 2012 MIPS Technologies, Inc.  All rights reserved.
   */
  #include <linux/module.h>
  #include <linux/leds.h>
  #include <linux/platform_device.h>
  
  #define LEDFLAGS(bits, shift)		\
  	((bits << 8) | (shift << 8))
  
  #define LEDBITS(id, shift, bits)	\
  	.name = id #shift,		\
  	.flags = LEDFLAGS(bits, shift)
  
  struct led_info led_data_info[] = {
  	{ LEDBITS("bit", 0, 1) },
  	{ LEDBITS("bit", 1, 1) },
  	{ LEDBITS("bit", 2, 1) },
  	{ LEDBITS("bit", 3, 1) },
  	{ LEDBITS("bit", 4, 1) },
  	{ LEDBITS("bit", 5, 1) },
  	{ LEDBITS("bit", 6, 1) },
  	{ LEDBITS("bit", 7, 1) },
  	{ LEDBITS("all", 0, 8) },
  };
  
  static struct led_platform_data led_data = {
  	.num_leds	= ARRAY_SIZE(led_data_info),
  	.leds		= led_data_info
  };
  
  static struct resource pled_resources[] = {
  	{
  		.start	= 0x1f000210,
  		.end	= 0x1f000217,
  		.flags	= IORESOURCE_MEM
  	}
  };
  
  static struct platform_device pled_device = {
  	.name			= "sead3::pled",
  	.id			= 0,
  	.dev			= {
  		.platform_data	= &led_data,
  	},
  	.num_resources		= ARRAY_SIZE(pled_resources),
  	.resource		= pled_resources
  };
  
  
  static struct resource fled_resources[] = {
  	{
  		.start			= 0x1f000218,
  		.end			= 0x1f00021f,
  		.flags			= IORESOURCE_MEM
  	}
  };
  
  static struct platform_device fled_device = {
  	.name			= "sead3::fled",
  	.id			= 0,
  	.dev			= {
  		.platform_data	= &led_data,
  	},
  	.num_resources		= ARRAY_SIZE(fled_resources),
  	.resource		= fled_resources
  };
  
  static int __init led_init(void)
  {
  	platform_device_register(&pled_device);
  	return platform_device_register(&fled_device);
  }
  
  module_init(led_init);
  
  MODULE_AUTHOR("Chris Dearman <chris@mips.com>");
  MODULE_LICENSE("GPL");
  MODULE_DESCRIPTION("LED probe driver for SEAD-3");