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rtc: omap: add helper to read raw bcd time 

Add helper to read raw BCD time that can be used in interrupt context.

Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benot Cousson <bcousson@baylibre.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Keerthy J <j-keerthy@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johan Hovold 2014-12-10 15:53:07 -08:00 committed by Linus Torvalds
parent 9291e340fc
commit cbbe326fa8
1 changed files with 10 additions and 8 deletions
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18
drivers/rtc/rtc-omap.c
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@ -234,6 +234,15 @@ static void bcd2tm(struct rtc_time *tm)
tm->tm_year = bcd2bin(tm->tm_year) + 100;
}
static void omap_rtc_read_time_raw(struct omap_rtc *rtc, struct rtc_time *tm)
{
tm->tm_sec = rtc_read(rtc, OMAP_RTC_SECONDS_REG);
tm->tm_min = rtc_read(rtc, OMAP_RTC_MINUTES_REG);
tm->tm_hour = rtc_read(rtc, OMAP_RTC_HOURS_REG);
tm->tm_mday = rtc_read(rtc, OMAP_RTC_DAYS_REG);
tm->tm_mon = rtc_read(rtc, OMAP_RTC_MONTHS_REG);
tm->tm_year = rtc_read(rtc, OMAP_RTC_YEARS_REG);
}
static int omap_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
@ -242,14 +251,7 @@ static int omap_rtc_read_time(struct device *dev, struct rtc_time *tm)
/* we don't report wday/yday/isdst ... */
local_irq_disable();
rtc_wait_not_busy(rtc);
tm->tm_sec = rtc_read(rtc, OMAP_RTC_SECONDS_REG);
tm->tm_min = rtc_read(rtc, OMAP_RTC_MINUTES_REG);
tm->tm_hour = rtc_read(rtc, OMAP_RTC_HOURS_REG);
tm->tm_mday = rtc_read(rtc, OMAP_RTC_DAYS_REG);
tm->tm_mon = rtc_read(rtc, OMAP_RTC_MONTHS_REG);
tm->tm_year = rtc_read(rtc, OMAP_RTC_YEARS_REG);
omap_rtc_read_time_raw(rtc, tm);
local_irq_enable();
bcd2tm(tm);