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linux-next/drivers/leds/leds-rb532.c
Axel Lin 892a8843fb leds: convert led platform drivers to module_platform_driver
Factor out some boilerplate code for platform driver registration into
module_platform_driver.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Haojian Zhuang <hzhuang1@marvell.com>		[led-88pm860x.c]
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Michael Hennerich <hennerich@blackfin.uclinux.org>
Cc: Mike Rapoport <mike@compulab.co.il>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-10 16:30:48 -08:00

66 lines
1.5 KiB
C

/*
* LEDs driver for the "User LED" on Routerboard532
*
* Copyright (C) 2009 Phil Sutter <n0-1@freewrt.org>
*
* Based on leds-cobalt-qube.c by Florian Fainelly and
* rb-diag.c (my own standalone driver for both LED and
* button of Routerboard532).
*/
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <asm/mach-rc32434/gpio.h>
#include <asm/mach-rc32434/rb.h>
static void rb532_led_set(struct led_classdev *cdev,
enum led_brightness brightness)
{
if (brightness)
set_latch_u5(LO_ULED, 0);
else
set_latch_u5(0, LO_ULED);
}
static enum led_brightness rb532_led_get(struct led_classdev *cdev)
{
return (get_latch_u5() & LO_ULED) ? LED_FULL : LED_OFF;
}
static struct led_classdev rb532_uled = {
.name = "uled",
.brightness_set = rb532_led_set,
.brightness_get = rb532_led_get,
.default_trigger = "nand-disk",
};
static int __devinit rb532_led_probe(struct platform_device *pdev)
{
return led_classdev_register(&pdev->dev, &rb532_uled);
}
static int __devexit rb532_led_remove(struct platform_device *pdev)
{
led_classdev_unregister(&rb532_uled);
return 0;
}
static struct platform_driver rb532_led_driver = {
.probe = rb532_led_probe,
.remove = __devexit_p(rb532_led_remove),
.driver = {
.name = "rb532-led",
.owner = THIS_MODULE,
},
};
module_platform_driver(rb532_led_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("User LED support for Routerboard532");
MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");
MODULE_ALIAS("platform:rb532-led");