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| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2015-04-16 12:45:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-17 09:04:02 -0400 |
| commit | 202fe4c27f427c48ca5660277d743ee8b43fc200 (patch) | |
| tree | cd29a98058d369bf629aa635368594fbfdb47be5 /drivers | |
| parent | 521fca18e828cddc94535a1ea5ac33460f1de679 (diff) | |
| download | lwn-202fe4c27f427c48ca5660277d743ee8b43fc200.tar.gz lwn-202fe4c27f427c48ca5660277d743ee8b43fc200.zip | |
drivers/rtc/rtc-s3c.c: fix failed first read of RTC time
Initialize the device time (if it is wrong) before registering RTC device
to fix following error message during rtc-s3c probe:
[ 2.215414] rtc (null): read_time: fail to read
[ 2.216322] s3c-rtc 10070000.rtc: rtc core: registered s3c as rtc1
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
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-s3c.c | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index fb0c569765c6..a313b9b5a27e 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -496,6 +496,22 @@ static int s3c_rtc_probe(struct platform_device *pdev) device_init_wakeup(&pdev->dev, 1); + /* Check RTC Time */ + s3c_rtc_gettime(&pdev->dev, &rtc_tm); + + if (rtc_valid_tm(&rtc_tm)) { + rtc_tm.tm_year = 100; + rtc_tm.tm_mon = 0; + rtc_tm.tm_mday = 1; + rtc_tm.tm_hour = 0; + rtc_tm.tm_min = 0; + rtc_tm.tm_sec = 0; + + s3c_rtc_settime(&pdev->dev, &rtc_tm); + + dev_warn(&pdev->dev, "warning: invalid RTC value so initializing it\n"); + } + /* register RTC and exit */ info->rtc = devm_rtc_device_register(&pdev->dev, "s3c", &s3c_rtcops, THIS_MODULE); @@ -519,22 +535,6 @@ static int s3c_rtc_probe(struct platform_device *pdev) goto err_nortc; } - /* Check RTC Time */ - s3c_rtc_gettime(&pdev->dev, &rtc_tm); - - if (rtc_valid_tm(&rtc_tm)) { - rtc_tm.tm_year = 100; - rtc_tm.tm_mon = 0; - rtc_tm.tm_mday = 1; - rtc_tm.tm_hour = 0; - rtc_tm.tm_min = 0; - rtc_tm.tm_sec = 0; - - s3c_rtc_settime(&pdev->dev, &rtc_tm); - - dev_warn(&pdev->dev, "warning: invalid RTC value so initializing it\n"); - } - if (info->data->select_tick_clk) info->data->select_tick_clk(info); |