b250c96ea9
Signed-off-by: dann frazier <dannf@hp.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
87 lines
1.7 KiB
C
87 lines
1.7 KiB
C
/* rtc-parisc: RTC for HP PA-RISC firmware
|
|
*
|
|
* Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca>
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/time.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/rtc.h>
|
|
|
|
#include <asm/rtc.h>
|
|
|
|
static int parisc_get_time(struct device *dev, struct rtc_time *tm)
|
|
{
|
|
unsigned long ret;
|
|
|
|
ret = get_rtc_time(tm);
|
|
|
|
if (ret & RTC_BATT_BAD)
|
|
return -EOPNOTSUPP;
|
|
|
|
return rtc_valid_tm(tm);
|
|
}
|
|
|
|
static int parisc_set_time(struct device *dev, struct rtc_time *tm)
|
|
{
|
|
if (set_rtc_time(tm) < 0)
|
|
return -EOPNOTSUPP;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct rtc_class_ops parisc_rtc_ops = {
|
|
.read_time = parisc_get_time,
|
|
.set_time = parisc_set_time,
|
|
};
|
|
|
|
static int __init parisc_rtc_probe(struct platform_device *dev)
|
|
{
|
|
struct rtc_device *rtc;
|
|
|
|
rtc = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
|
|
THIS_MODULE);
|
|
if (IS_ERR(rtc))
|
|
return PTR_ERR(rtc);
|
|
|
|
platform_set_drvdata(dev, rtc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __exit parisc_rtc_remove(struct platform_device *dev)
|
|
{
|
|
struct rtc_device *rtc = platform_get_drvdata(dev);
|
|
|
|
rtc_device_unregister(rtc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver parisc_rtc_driver = {
|
|
.driver = {
|
|
.name = "rtc-parisc",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = parisc_rtc_probe,
|
|
.remove = __devexit_p(parisc_rtc_remove),
|
|
};
|
|
|
|
static int __init parisc_rtc_init(void)
|
|
{
|
|
return platform_driver_probe(&parisc_rtc_driver, parisc_rtc_probe);
|
|
}
|
|
|
|
static void __exit parisc_rtc_fini(void)
|
|
{
|
|
platform_driver_unregister(&parisc_rtc_driver);
|
|
}
|
|
|
|
module_init(parisc_rtc_init);
|
|
module_exit(parisc_rtc_fini);
|
|
|
|
MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("HP PA-RISC RTC driver");
|