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authorKim Phillips <kim.phillips@freescale.com>2006-09-26 18:46:37 -0400
committerPaul Mackerras <paulus@samba.org>2006-10-02 03:48:47 -0400
commit7a69af63e788a324d162201a0b23df41bcf158dd (patch)
treeb25e776a04eedd122594d75841dd30b4419657b0 /arch/powerpc
parent2bf118197cb4d9a5e7a9e45b5b007235fdc9f402 (diff)
[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/powerpc')
-rw-r--r--arch/powerpc/kernel/time.c42
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)
1048 set_dec(tb_ticks_per_jiffy); 1048 set_dec(tb_ticks_per_jiffy);
1049} 1049}
1050 1050
1051#ifdef CONFIG_RTC_CLASS
1052static int set_rtc_class_time(struct rtc_time *tm)
1053{
1054 int err;
1055 struct class_device *class_dev =
1056 rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
1057
1058 if (class_dev == NULL)
1059 return -ENODEV;
1060
1061 err = rtc_set_time(class_dev, tm);
1062
1063 rtc_class_close(class_dev);
1064
1065 return 0;
1066}
1067
1068static void get_rtc_class_time(struct rtc_time *tm)
1069{
1070 int err;
1071 struct class_device *class_dev =
1072 rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
1073
1074 if (class_dev == NULL)
1075 return;
1076
1077 err = rtc_read_time(class_dev, tm);
1078
1079 rtc_class_close(class_dev);
1080
1081 return;
1082}
1083
1084int __init rtc_class_hookup(void)
1085{
1086 ppc_md.get_rtc_time = get_rtc_class_time;
1087 ppc_md.set_rtc_time = set_rtc_class_time;
1088
1089 return 0;
1090}
1091#endif /* CONFIG_RTC_CLASS */
1092
1051 1093
1052#define FEBRUARY 2 1094#define FEBRUARY 2
1053#define STARTOFTIME 1970 1095#define STARTOFTIME 1970