/* rtc-generic: RTC driver using the generic RTC abstraction * * 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 generic_get_time(struct device *dev, struct rtc_time *tm){	unsigned int ret = get_rtc_time(tm); 	if (ret & RTC_BATT_BAD)		return -EOPNOTSUPP; 	return rtc_valid_tm(tm);} static int generic_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 generic_rtc_ops = {	.read_time = generic_get_time,	.set_time = generic_set_time,}; static int __init generic_rtc_probe(struct platform_device *dev){	struct rtc_device *rtc; 	rtc = rtc_device_register("rtc-generic", &dev->dev, &generic_rtc_ops,				  THIS_MODULE);	if (IS_ERR(rtc))		return PTR_ERR(rtc); 	platform_set_drvdata(dev, rtc); 	return 0;} static int __exit generic_rtc_remove(struct platform_device *dev){	struct rtc_device *rtc = platform_get_drvdata(dev); 	rtc_device_unregister(rtc); 	return 0;} static struct platform_driver generic_rtc_driver = {	.driver = {		.name = "rtc-generic",		.owner = THIS_MODULE,	},	.remove = __exit_p(generic_rtc_remove),}; static int __init generic_rtc_init(void){	return platform_driver_probe(&generic_rtc_driver, generic_rtc_probe);} static void __exit generic_rtc_fini(void){	platform_driver_unregister(&generic_rtc_driver);} module_init(generic_rtc_init);module_exit(generic_rtc_fini); MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");MODULE_LICENSE("GPL");MODULE_DESCRIPTION("Generic RTC driver");MODULE_ALIAS("platform:rtc-generic");