On Wed, 10 Sep 2014 09:18:04 +0800 Chris Zhong <zyw@xxxxxxxxxxxxxx> wrote: > Adding RTC driver for supporting RTC device present inside RK808 PMIC. > > ... > > + ret = rtc_valid_tm(&tm); > + if (ret) { > + dev_warn(&pdev->dev, "invalid date/time and init time\n"); > + rk808_rtc_set_time(&pdev->dev, &tm_def); > + } This is somewhat unusual. Most drivers will emit a warning and give up when they find the time is wrong. Why is this driver different and is this desirable behaviour? Also, I did this: From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: rtc-rk808-add-rtc-driver-for-rk808-fix make tm_def static Cc: Chris Zhong <zyw@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/rtc/rtc-rk808.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff -puN drivers/rtc/Kconfig~rtc-rk808-add-rtc-driver-for-rk808-fix drivers/rtc/Kconfig diff -puN drivers/rtc/Makefile~rtc-rk808-add-rtc-driver-for-rk808-fix drivers/rtc/Makefile diff -puN drivers/rtc/rtc-rk808.c~rtc-rk808-add-rtc-driver-for-rk808-fix drivers/rtc/rtc-rk808.c --- a/drivers/rtc/rtc-rk808.c~rtc-rk808-add-rtc-driver-for-rk808-fix +++ a/drivers/rtc/rtc-rk808.c @@ -326,14 +326,14 @@ static SIMPLE_DEV_PM_OPS(rk808_rtc_pm_op rk808_rtc_suspend, rk808_rtc_resume); /* 2014.1.1 12:00:00 Saturday */ -struct rtc_time tm_def = { - .tm_wday = 6, - .tm_year = 114, - .tm_mon = 0, - .tm_mday = 1, - .tm_hour = 12, - .tm_min = 0, - .tm_sec = 0, +static struct rtc_time tm_def = { + .tm_wday = 6, + .tm_year = 114, + .tm_mon = 0, + .tm_mday = 1, + .tm_hour = 12, + .tm_min = 0, + .tm_sec = 0, }; static int rk808_rtc_probe(struct platform_device *pdev) _ -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html