Eric Wong fb1778eb80 rtc: cmos: ignore bogus century byte ...

[ Upstream commit 2a4daadd4d3e507138f8937926e6a4df49c6bfdc ]

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 10:21:39 +01:00

..

acpi

Merge branch 'acpi-pci'

2015-11-07 01:30:10 +01:00

asm-generic

rtc: cmos: ignore bogus century byte

2020-01-29 10:21:39 +01:00

clocksource

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crypto

crypto: vmac - separate tfm and request context

2018-08-17 20:56:45 +02:00

drm

drm: mst: Fix query_payload ack reply struct

2020-01-04 13:34:03 +01:00

dt-bindings

ARM: dts: Fix omap3 off mode pull defines

2017-11-21 09:21:19 +01:00

keys

KEYS: user: Align the payload buffer

2019-03-23 08:44:17 +01:00

kvm

KVM: arm/arm64: arch_timer: Preserve physical dist. active state on LR.active

2015-11-24 18:07:40 +01:00

linux

regulator: ab8500: Remove SYSCLKREQ from enum ab8505_regulator_id

2020-01-23 08:18:41 +01:00

math-emu

math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning

2019-12-21 10:34:32 +01:00

media

media: v4l: event: Prevent freeing event subscriptions while accessed

2018-10-10 08:52:10 +02:00

memory

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misc

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net

cfg80211/mac80211: make ieee80211_send_layer2_update a public function

2020-01-23 08:18:35 +01:00

pcmcia

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ras

…

rdma

IB/core: Make testing MR flags for writability a static inline function

2018-08-15 17:42:06 +02:00

rxrpc

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scsi

scsi: target: iscsi: Wait for all commands to finish before freeing a session

2020-01-04 13:34:36 +01:00

soc

memory: tegra: Apply interrupts mask per SoC

2018-08-06 16:24:38 +02:00

sound

ASoC: Define a set of DAPM pre/post-up events

2019-10-17 13:40:53 -07:00

target

target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK

2018-01-17 09:35:31 +01:00

trace

ext4: force inode writes when nfsd calls commit_metadata()

2019-01-13 10:05:30 +01:00

uapi

netfilter: uapi: Avoid undefined left-shift in xt_sctp.h

2020-01-12 11:22:47 +01:00

video

fbdev: Remove unused SH-Mobile HDMI driver

2019-11-25 15:54:24 +01:00

xen

fix xen_swiotlb_dma_mmap prototype

2017-10-05 09:41:48 +02:00

Kbuild

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