leds-sead3.c
1.8 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.
* Copyright (C) 2015 Imagination Technologies, Inc.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/err.h>
#include <linux/io.h>
#include <asm/mips-boards/sead3-addr.h>
static void sead3_pled_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
writel(value, (void __iomem *)SEAD3_CPLD_P_LED);
}
static void sead3_fled_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
writel(value, (void __iomem *)SEAD3_CPLD_F_LED);
}
static struct led_classdev sead3_pled = {
.name = "sead3::pled",
.brightness_set = sead3_pled_set,
.flags = LED_CORE_SUSPENDRESUME,
};
static struct led_classdev sead3_fled = {
.name = "sead3::fled",
.brightness_set = sead3_fled_set,
.flags = LED_CORE_SUSPENDRESUME,
};
static int sead3_led_probe(struct platform_device *pdev)
{
int ret;
ret = led_classdev_register(&pdev->dev, &sead3_pled);
if (ret < 0)
return ret;
ret = led_classdev_register(&pdev->dev, &sead3_fled);
if (ret < 0)
led_classdev_unregister(&sead3_pled);
return ret;
}
static int sead3_led_remove(struct platform_device *pdev)
{
led_classdev_unregister(&sead3_pled);
led_classdev_unregister(&sead3_fled);
return 0;
}
static struct platform_driver sead3_led_driver = {
.probe = sead3_led_probe,
.remove = sead3_led_remove,
.driver = {
.name = "sead3-led",
},
};
module_platform_driver(sead3_led_driver);
MODULE_AUTHOR("Kristian Kielhofner <kris@krisk.org>");
MODULE_DESCRIPTION("SEAD3 LED driver");
MODULE_LICENSE("GPL");