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blackfin RTC driver: disable the write complete irq upon close 

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mike Frysinger 2008-08-05 13:01:19 -07:00 committed by Linus Torvalds
parent 605eb8b3c0
commit 3b128fe04a
1 changed files with 4 additions and 4 deletions
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8
drivers/rtc/rtc-bfin.c
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@ -144,13 +144,13 @@ static void bfin_rtc_sync_pending(struct device *dev)
* Initialize the RTC. Enable pre-scaler to scale RTC clock
* to 1Hz and clear interrupt/status registers.
*/
static void bfin_rtc_reset(struct device *dev)
static void bfin_rtc_reset(struct device *dev, u16 rtc_ictl)
{
struct bfin_rtc *rtc = dev_get_drvdata(dev);
dev_dbg_stamp(dev);
bfin_rtc_sync_pending(dev);
bfin_write_RTC_PREN(0x1);
bfin_write_RTC_ICTL(RTC_ISTAT_WRITE_COMPLETE);
bfin_write_RTC_ICTL(rtc_ictl);
bfin_write_RTC_SWCNT(0);
bfin_write_RTC_ALARM(0);
bfin_write_RTC_ISTAT(0xFFFF);
@ -226,7 +226,7 @@ static int bfin_rtc_open(struct device *dev)
ret = request_irq(IRQ_RTC, bfin_rtc_interrupt, IRQF_SHARED, to_platform_device(dev)->name, dev);
if (!ret)
bfin_rtc_reset(dev);
bfin_rtc_reset(dev, RTC_ISTAT_WRITE_COMPLETE);
return ret;
}
@ -234,7 +234,7 @@ static int bfin_rtc_open(struct device *dev)
static void bfin_rtc_release(struct device *dev)
{
dev_dbg_stamp(dev);
bfin_rtc_reset(dev);
bfin_rtc_reset(dev, 0);
free_irq(IRQ_RTC, dev);
}