mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
b7408aff2d
Patch from Richard Purdie Set the default triggers for the LOCOMO LED driver. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
/*
|
|
* linux/drivers/leds/locomo.c
|
|
*
|
|
* Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/config.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/device.h>
|
|
#include <linux/leds.h>
|
|
|
|
#include <asm/hardware.h>
|
|
#include <asm/hardware/locomo.h>
|
|
|
|
static void locomoled_brightness_set(struct led_classdev *led_cdev,
|
|
enum led_brightness value, int offset)
|
|
{
|
|
struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->class_dev->dev);
|
|
unsigned long flags;
|
|
|
|
local_irq_save(flags);
|
|
if (value)
|
|
locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
|
|
else
|
|
locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
|
|
local_irq_restore(flags);
|
|
}
|
|
|
|
static void locomoled_brightness_set0(struct led_classdev *led_cdev,
|
|
enum led_brightness value)
|
|
{
|
|
locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
|
|
}
|
|
|
|
static void locomoled_brightness_set1(struct led_classdev *led_cdev,
|
|
enum led_brightness value)
|
|
{
|
|
locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
|
|
}
|
|
|
|
static struct led_classdev locomo_led0 = {
|
|
.name = "locomo:amber",
|
|
.default_trigger = "sharpsl-charge",
|
|
.brightness_set = locomoled_brightness_set0,
|
|
};
|
|
|
|
static struct led_classdev locomo_led1 = {
|
|
.name = "locomo:green",
|
|
.default_trigger = "nand-disk",
|
|
.brightness_set = locomoled_brightness_set1,
|
|
};
|
|
|
|
static int locomoled_probe(struct locomo_dev *ldev)
|
|
{
|
|
int ret;
|
|
|
|
ret = led_classdev_register(&ldev->dev, &locomo_led0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = led_classdev_register(&ldev->dev, &locomo_led1);
|
|
if (ret < 0)
|
|
led_classdev_unregister(&locomo_led0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int locomoled_remove(struct locomo_dev *dev)
|
|
{
|
|
led_classdev_unregister(&locomo_led0);
|
|
led_classdev_unregister(&locomo_led1);
|
|
return 0;
|
|
}
|
|
|
|
static struct locomo_driver locomoled_driver = {
|
|
.drv = {
|
|
.name = "locomoled"
|
|
},
|
|
.devid = LOCOMO_DEVID_LED,
|
|
.probe = locomoled_probe,
|
|
.remove = locomoled_remove,
|
|
};
|
|
|
|
static int __init locomoled_init(void)
|
|
{
|
|
return locomo_driver_register(&locomoled_driver);
|
|
}
|
|
module_init(locomoled_init);
|
|
|
|
MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
|
|
MODULE_DESCRIPTION("Locomo LED driver");
|
|
MODULE_LICENSE("GPL");
|