Files
linux/drivers
Eric Wong 03dbd75cd1 rtc: cmos: ignore bogus century byte
[ Upstream commit 2a4daadd4d ]

Older versions of Libreboot and Coreboot had an invalid value
(`3' in my case) in the century byte affecting the GM45 in
the Thinkpad X200.  Not everybody's updated their firmwares,
and Linux <= 4.2 was able to read the RTC without problems,
so workaround this by ignoring invalid values.

Fixes: 3c217e51d8 ("rtc: cmos: century support")

Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Sylvain Chouleur <sylvain.chouleur@intel.com>
Cc: Patrick McDermott <patrick.mcdermott@libiquity.com>
Cc: linux-rtc@vger.kernel.org
Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-29 10:24:12 +01:00
..
2020-01-04 13:39:51 +01:00
2018-12-21 14:11:37 +01:00
2019-05-14 19:19:34 +02:00
2020-01-29 10:24:12 +01:00
2018-12-21 14:11:36 +01:00
2019-12-21 10:42:08 +01:00
2019-05-31 06:48:15 -07:00