linux/drivers/leds/leds-locomo.c
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  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

  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 #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00

84 lines
1.9 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/drivers/leds/leds-locomo.c
*
* Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/leds.h>
#include <mach/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->dev->parent);
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:charge",
.default_trigger = "main-battery-charging",
.brightness_set = locomoled_brightness_set0,
};
static struct led_classdev locomo_led1 = {
.name = "locomo:green:mail",
.default_trigger = "nand-disk",
.brightness_set = locomoled_brightness_set1,
};
static int locomoled_probe(struct locomo_dev *ldev)
{
int ret;
ret = devm_led_classdev_register(&ldev->dev, &locomo_led0);
if (ret < 0)
return ret;
return devm_led_classdev_register(&ldev->dev, &locomo_led1);
}
static struct locomo_driver locomoled_driver = {
.drv = {
.name = "locomoled"
},
.devid = LOCOMO_DEVID_LED,
.probe = locomoled_probe,
};
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");