1 /* rtc-parisc: RTC for HP PA-RISC firmware
3 * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca>
6 #include <linux/kernel.h>
7 #include <linux/module.h>
8 #include <linux/time.h>
9 #include <linux/platform_device.h>
10 #include <linux/rtc.h>
14 static int parisc_get_time(struct device *dev, struct rtc_time *tm)
18 ret = get_rtc_time(tm);
20 if (ret & RTC_BATT_BAD)
23 return rtc_valid_tm(tm);
26 static int parisc_set_time(struct device *dev, struct rtc_time *tm)
28 if (set_rtc_time(tm) < 0)
34 static const struct rtc_class_ops parisc_rtc_ops = {
35 .read_time = parisc_get_time,
36 .set_time = parisc_set_time,
39 static int __init parisc_rtc_probe(struct platform_device *dev)
41 struct rtc_device *rtc;
43 rtc = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
48 platform_set_drvdata(dev, rtc);
53 static int __exit parisc_rtc_remove(struct platform_device *dev)
55 struct rtc_device *rtc = platform_get_drvdata(dev);
57 rtc_device_unregister(rtc);
62 static struct platform_driver parisc_rtc_driver = {
67 .probe = parisc_rtc_probe,
68 .remove = __devexit_p(parisc_rtc_remove),
71 static int __init parisc_rtc_init(void)
73 return platform_driver_probe(&parisc_rtc_driver, parisc_rtc_probe);
76 static void __exit parisc_rtc_fini(void)
78 platform_driver_unregister(&parisc_rtc_driver);
81 module_init(parisc_rtc_init);
82 module_exit(parisc_rtc_fini);
84 MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
85 MODULE_LICENSE("GPL");
86 MODULE_DESCRIPTION("HP PA-RISC RTC driver");