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>
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index fb0c569..a313b9b 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -496,6 +496,22 @@
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 @@
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);