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authorKrzysztof Kozlowski <k.kozlowski@samsung.com>2015-04-16 12:45:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-17 09:04:02 -0400
commit202fe4c27f427c48ca5660277d743ee8b43fc200 (patch)
treecd29a98058d369bf629aa635368594fbfdb47be5 /drivers/rtc
parent521fca18e828cddc94535a1ea5ac33460f1de679 (diff)
downloadlinux-202fe4c27f427c48ca5660277d743ee8b43fc200.tar.bz2
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/rtc')
-rw-r--r--drivers/rtc/rtc-s3c.c32
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);