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rtc: r9701: stop setting a default time

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It doesn't make sense to set the RTC to a default value at probe time. Let
the core handle invalid date and time.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20201015191135.471249-2-alexandre.belloni@bootlin.com
This commit is contained in:
Alexandre Belloni 2020-10-15 21:11:31 +02:00
parent 92c6dcfbd1
commit 7390bec4ed
1 changed files with 0 additions and 22 deletions
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22
drivers/rtc/rtc-r9701.c
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@ -115,7 +115,6 @@ static const struct rtc_class_ops r9701_rtc_ops = {
static int r9701_probe(struct spi_device *spi)
{
struct rtc_device *rtc;
struct rtc_time dt;
unsigned char tmp;
int res;
@ -126,27 +125,6 @@ static int r9701_probe(struct spi_device *spi)
return -ENODEV;
}
/*
* The device seems to be present. Now check if the registers
* contain invalid values. If so, try to write a default date:
* 2000/1/1 00:00:00
*/
if (r9701_get_datetime(&spi->dev, &dt)) {
dev_info(&spi->dev, "trying to repair invalid date/time\n");
dt.tm_sec = 0;
dt.tm_min = 0;
dt.tm_hour = 0;
dt.tm_mday = 1;
dt.tm_mon = 0;
dt.tm_year = 100;
if (r9701_set_datetime(&spi->dev, &dt) ||
r9701_get_datetime(&spi->dev, &dt)) {
dev_err(&spi->dev, "cannot repair RTC register\n");
return -ENODEV;
}
}
rtc = devm_rtc_device_register(&spi->dev, "r9701",
&r9701_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc))