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
)
16 unsigned int ret
= get_rtc_time(tm
);
18 if (ret
& RTC_BATT_BAD
)
21 return rtc_valid_tm(tm
);
24 static int parisc_set_time(struct device
*dev
, struct rtc_time
*tm
)
26 if (set_rtc_time(tm
) < 0)
32 static const struct rtc_class_ops parisc_rtc_ops
= {
33 .read_time
= parisc_get_time
,
34 .set_time
= parisc_set_time
,
37 static int __init
parisc_rtc_probe(struct platform_device
*dev
)
39 struct rtc_device
*rtc
;
41 rtc
= rtc_device_register("rtc-parisc", &dev
->dev
, &parisc_rtc_ops
,
46 platform_set_drvdata(dev
, rtc
);
51 static int __exit
parisc_rtc_remove(struct platform_device
*dev
)
53 struct rtc_device
*rtc
= platform_get_drvdata(dev
);
55 rtc_device_unregister(rtc
);
60 static struct platform_driver parisc_rtc_driver
= {
65 .probe
= parisc_rtc_probe
,
66 .remove
= __devexit_p(parisc_rtc_remove
),
69 static int __init
parisc_rtc_init(void)
71 return platform_driver_probe(&parisc_rtc_driver
, parisc_rtc_probe
);
74 static void __exit
parisc_rtc_fini(void)
76 platform_driver_unregister(&parisc_rtc_driver
);
79 module_init(parisc_rtc_init
);
80 module_exit(parisc_rtc_fini
);
82 MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
83 MODULE_LICENSE("GPL");
84 MODULE_DESCRIPTION("HP PA-RISC RTC driver");