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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.
*/
#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>
#define DRVNAME "sead3-led"
static struct platform_device *pdev;
static void sead3_pled_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
pr_debug("sead3_pled_set\n");
writel(value, (void __iomem *)0xBF000210); /* FIXME */
}
static void sead3_fled_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
pr_debug("sead3_fled_set\n");
writel(value, (void __iomem *)0xBF000218); /* FIXME */
}
static struct led_classdev sead3_pled = {
.name = "sead3::pled",
.brightness_set = sead3_pled_set,
};
static struct led_classdev sead3_fled = {
.name = "sead3::fled",
.brightness_set = sead3_fled_set,
};
#ifdef CONFIG_PM
static int sead3_led_suspend(struct platform_device *dev,
pm_message_t state)
{
led_classdev_suspend(&sead3_pled);
led_classdev_suspend(&sead3_fled);
return 0;
}
static int sead3_led_resume(struct platform_device *dev)
{
led_classdev_resume(&sead3_pled);
led_classdev_resume(&sead3_fled);
return 0;
}
#else
#define sead3_led_suspend NULL
#define sead3_led_resume NULL
#endif
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,
.suspend = sead3_led_suspend,
.resume = sead3_led_resume,
.driver = {
.name = DRVNAME,
.owner = THIS_MODULE,
},
};
static int __init sead3_led_init(void)
{
int ret;
ret = platform_driver_register(&sead3_led_driver);
if (ret < 0)
goto out;
pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
if (IS_ERR(pdev)) {
ret = PTR_ERR(pdev);
platform_driver_unregister(&sead3_led_driver);
goto out;
}
out:
return ret;
}
static void __exit sead3_led_exit(void)
{
platform_device_unregister(pdev);
platform_driver_unregister(&sead3_led_driver);
}
module_init(sead3_led_init);
module_exit(sead3_led_exit);
MODULE_AUTHOR("Kristian Kielhofner <kris@krisk.org>");
MODULE_DESCRIPTION("SEAD3 LED driver");
MODULE_LICENSE("GPL");
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