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[PATCH] ARM: RTC: allow driver methods to return error

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Allow RTC drivers to return error codes from their read_time
or read_alarm methods.

Signed-off-by: Russell King <rmk@arm.linux.org.uk>
This commit is contained in:
Russell King
2005-04-30 12:19:28 +01:00
parent a6ad57fb4b
commit d5aa207e46
4 changed files with 35 additions and 23 deletions
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17
arch/arm/mach-integrator/time.c
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@@ -40,25 +40,32 @@ static int integrator_set_rtc(void)
return 1;
}
static void rtc_read_alarm(struct rtc_wkalrm *alrm)
static int rtc_read_alarm(struct rtc_wkalrm *alrm)
{
rtc_time_to_tm(readl(rtc_base + RTC_MR), &alrm->time);
return 0;
}
static int rtc_set_alarm(struct rtc_wkalrm *alrm)
static inline int rtc_set_alarm(struct rtc_wkalrm *alrm)
{
unsigned long time;
int ret;
ret = rtc_tm_to_time(&alrm->time, &time);
/*
* At the moment, we can only deal with non-wildcarded alarm times.
*/
ret = rtc_valid_tm(&alrm->time);
if (ret == 0)
ret = rtc_tm_to_time(&alrm->time, &time);
if (ret == 0)
writel(time, rtc_base + RTC_MR);
return ret;
}
static void rtc_read_time(struct rtc_time *tm)
static int rtc_read_time(struct rtc_time *tm)
{
rtc_time_to_tm(readl(rtc_base + RTC_DR), tm);
return 0;
}
/*
@@ -69,7 +76,7 @@ static void rtc_read_time(struct rtc_time *tm)
* edge of the 1Hz clock, we must write the time one second
* in advance.
*/
static int rtc_set_time(struct rtc_time *tm)
static inline int rtc_set_time(struct rtc_time *tm)
{
unsigned long time;
int ret;