mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 05:34:00 +08:00
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
|
/*
|
||
|
|
* RTC driver for ppc_md RTC functions
|
||
|
|
*
|
||
|
|
* © 2007 Red Hat, Inc.
|
||
|
|
*
|
||
|
|
* Author: David Woodhouse <dwmw2@infradead.org>
|
||
|
|
*
|
||
|
|
* 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/module.h>
|
||
|
|
#include <linux/err.h>
|
||
|
|
#include <linux/rtc.h>
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
#include <asm/machdep.h>
|
||
|
|
|
||
|
|
static int ppc_rtc_read_time(struct device *dev, struct rtc_time *tm)
|
||
|
|
{
|
||
|
|
ppc_md.get_rtc_time(tm);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ppc_rtc_set_time(struct device *dev, struct rtc_time *tm)
|
||
|
|
{
|
||
|
|
return ppc_md.set_rtc_time(tm);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct rtc_class_ops ppc_rtc_ops = {
|
||
|
|
.set_time = ppc_rtc_set_time,
|
||
|
|
.read_time = ppc_rtc_read_time,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct rtc_device *rtc;
|
||
|
|
static struct platform_device *ppc_rtc_pdev;
|
||
|
|
|
||
|
|
static int __init ppc_rtc_init(void)
|
||
|
|
{
|
||
|
|
if (!ppc_md.get_rtc_time || !ppc_md.set_rtc_time)
|
||
|
|
return -ENODEV;
|
||
|
|
|
||
|
|
ppc_rtc_pdev = platform_device_register_simple("ppc-rtc", 0, NULL, 0);
|
||
|
|
if (IS_ERR(ppc_rtc_pdev))
|
||
|
|
return PTR_ERR(ppc_rtc_pdev);
|
||
|
|
|
||
|
|
rtc = rtc_device_register("ppc_md", &ppc_rtc_pdev->dev,
|
||
|
|
&ppc_rtc_ops, THIS_MODULE);
|
||
|
|
if (IS_ERR(rtc)) {
|
||
|
|
platform_device_unregister(ppc_rtc_pdev);
|
||
|
|
return PTR_ERR(rtc);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit ppc_rtc_exit(void)
|
||
|
|
{
|
||
|
|
rtc_device_unregister(rtc);
|
||
|
|
platform_device_unregister(ppc_rtc_pdev);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(ppc_rtc_init);
|
||
|
|
module_exit(ppc_rtc_exit);
|
||
|
|
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
|
||
|
|
MODULE_DESCRIPTION("Generic RTC class driver for PowerPC");
|