linux/drivers/leds/leds-rb532.c
Linus Torvalds e81d372ff9 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem update from Bryan Wu.

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: (47 commits)
  leds: leds-lp5521: return an error code on error in probe()
  leds: leds-clevo-mail: Use pr_* instead of printks
  leds: leds-rb532: Fix checkpatch errors
  leds: led-triggers: Fix checkpatch warnings
  leds: ledtrig-backlight: Fix checkpatch error
  leds: leds-wrap: Use <linux/io.h> instead of <asm/io.h>
  leds: leds-wm8350: Use dev_err instead of printk
  leds: leds-pwm: Fix checkpatch warning
  leds: leds-pca955x: Use dev_info instead of printk
  leds: leds-net48xx: Use linux/io.h instead of asm/io.h
  leds: leds-lt3593: Fix checkpatch warnings
  leds: leds-gpio: Use dev_info instead of printk
  leds: leds-da903x: Fix checkpatch error and warnings
  leds: leds-bd2802: Fix checkpatch warnings
  leds: leds-adp5520: Fix checkpatch warnings
  leds: led-class: Fix checkpatch warning
  leds: leds-ns2: use devm_gpio_request_one
  leds: leds-lt3593: use devm_gpio_request_one
  leds: leds-gpio: use devm_gpio_request_one
  leds: lp3944: Fix return value
  ...
2012-12-15 12:52:42 -08:00

65 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 rb532_led_probe(struct platform_device *pdev)
{
return led_classdev_register(&pdev->dev, &rb532_uled);
}
static int 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 = 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");