diff options
| author |   Kevin Liu <kliu5@marvell.com> | 2012-03-23 15:02:36 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-23 16:58:39 -0700 |
| commit | fad0738dcf6feccf601f5a24b8ccd3b26894b337 (patch) | |
| tree | 7340f5de44b573899a6f7c82fe9647fdaf7760cc /drivers | |
| parent | drivers/rtc/rtc-max8925.c: fix max8925_rtc_read_alarm() return value error (diff) | |
| download | linux-dev-fad0738dcf6feccf601f5a24b8ccd3b26894b337.tar.xz linux-dev-fad0738dcf6feccf601f5a24b8ccd3b26894b337.zip | |
drivers/rtc/rtc-max8925.c: fix alarm->enabled mistake in max8925_rtc_read_alarm/max8925_rtc_set_alarm
max8925_rtc_read_alarm() should set alrm->enabled based on both
ALARM_IRQ_MASK and ALARM_CTRL setting. max8925_rtc_set_alarm() should
enable/disable alarm according to ALARM_CTRL reg setting.
Signed-off-by: Kevin Liu <kliu5@marvell.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/rtc/rtc-max8925.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/rtc/rtc-max8925.c b/drivers/rtc/rtc-max8925.c index ff6b9a2cb8e3..1459055a83aa 100644 --- a/drivers/rtc/rtc-max8925.c +++ b/drivers/rtc/rtc-max8925.c @@ -193,10 +193,17 @@ static int max8925_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) ret = max8925_reg_read(info->rtc, MAX8925_RTC_IRQ_MASK); if (ret < 0) goto out; - if ((ret & ALARM0_IRQ) == 0) - alrm->enabled = 1; - else + if (ret & ALARM0_IRQ) { alrm->enabled = 0; + } else { + ret = max8925_reg_read(info->rtc, MAX8925_ALARM0_CNTL); + if (ret < 0) + goto out; + if (!ret) + alrm->enabled = 0; + else + alrm->enabled = 1; + } ret = max8925_reg_read(info->rtc, MAX8925_RTC_STATUS); if (ret < 0) goto out; @@ -221,8 +228,11 @@ static int max8925_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) ret = max8925_bulk_write(info->rtc, MAX8925_ALARM0_SEC, TIME_NUM, buf); if (ret < 0) goto out; - /* only enable alarm on year/month/day/hour/min/sec */ - ret = max8925_reg_write(info->rtc, MAX8925_ALARM0_CNTL, 0x77); + if (alrm->enabled) + /* only enable alarm on year/month/day/hour/min/sec */ + ret = max8925_reg_write(info->rtc, MAX8925_ALARM0_CNTL, 0x77); + else + ret = max8925_reg_write(info->rtc, MAX8925_ALARM0_CNTL, 0x0); if (ret < 0) goto out; out: |