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| author |   Kim Phillips <kim.phillips@freescale.com> | 2006-09-26 17:46:37 -0500 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2006-10-02 17:48:47 +1000 |
| commit | 7a69af63e788a324d162201a0b23df41bcf158dd (patch) | |
| tree | b25e776a04eedd122594d75841dd30b4419657b0 /arch | |
| parent | [POWERPC] Create a "wrapper" script and use it in arch/powerpc/boot (diff) | |
| download | linux-dev-7a69af63e788a324d162201a0b23df41bcf158dd.tar.xz linux-dev-7a69af63e788a324d162201a0b23df41bcf158dd.zip | |
[POWERPC] Add powerpc get/set_rtc_time interface to new generic rtc class
Add powerpc get/set_rtc_time interface to new generic rtc class. This
abstracts rtc chip specific code from the platform code for rtc-over-i2c
platforms. Specific RTC chip support is now configured under
Device Drivers -> Real Time Clock. Setting time of day from the RTC
on startup is also configurable.
this time without the potentially platform breaking initcall.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/time.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 7a3c3f791ade..b4ed362c457a 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -1048,6 +1048,48 @@ void __init time_init(void) set_dec(tb_ticks_per_jiffy); } +#ifdef CONFIG_RTC_CLASS +static int set_rtc_class_time(struct rtc_time *tm) +{ + int err; + struct class_device *class_dev = + rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE); + + if (class_dev == NULL) + return -ENODEV; + + err = rtc_set_time(class_dev, tm); + + rtc_class_close(class_dev); + + return 0; +} + +static void get_rtc_class_time(struct rtc_time *tm) +{ + int err; + struct class_device *class_dev = + rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE); + + if (class_dev == NULL) + return; + + err = rtc_read_time(class_dev, tm); + + rtc_class_close(class_dev); + + return; +} + +int __init rtc_class_hookup(void) +{ + ppc_md.get_rtc_time = get_rtc_class_time; + ppc_md.set_rtc_time = set_rtc_class_time; + + return 0; +} +#endif /* CONFIG_RTC_CLASS */ + #define FEBRUARY 2 #define STARTOFTIME 1970 |