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Yifeng Li 8069053880 fbdev: sm712fb: fix white screen of death on reboot, don't set CR3B-CR3F 
On a Thinkpad s30 (Pentium III / i440MX, Lynx3DM), rebooting with
sm712fb framebuffer driver would cause a white screen of death on
the next POST, presumably the proper timings for the LCD panel was
not reprogrammed properly by the BIOS.

Experiments showed a few CRTC Scratch Registers, including CRT3D,
CRT3E and CRT3F may be used internally by BIOS as some flags. CRT3B is
a hardware testing register, we shouldn't mess with it. CRT3C has
blanking signal and line compare control, which is not needed for this
driver.

Stop writing to CR3B-CR3F (a.k.a CRT3B-CRT3F) registers. Even if these
registers don't have side-effect on other systems, writing to them is
also highly questionable.

Signed-off-by: Yifeng Li <tomli@tomli.me>
Tested-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Teddy Wang <teddy.wang@siliconmotion.com>
Cc: <stable@vger.kernel.org>  # v4.4+
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-04-01 17:46:58 +02:00
..
accessibility
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acpi
ACPI fix for 5.1-rc3
2019-03-30 10:09:11 -07:00
amba
ARM: 8836/1: drivers: amba: Update component matching to use the CoreSight UCI values.
2019-02-26 11:23:49 +00:00
android
binder: fix race between munmap() and direct reclaim
2019-03-21 06:51:32 +01:00
ata
libata: fix using DMA buffers on stack
2019-03-28 08:16:04 -06:00
atm
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auxdisplay
auxdisplay: charlcd: make backlight initial state configurable
2019-03-17 08:48:45 +01:00
base
Device properties framework fix for 5.1-rc2
2019-03-22 12:08:52 -07:00
bcma
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block
drivers/block/zram/zram_drv.c: fix idle/writeback string compare
2019-03-29 10:01:37 -07:00
bluetooth
Bluetooth: mediatek: add support for MediaTek MT7663U and MT7668U UART devices
2019-03-02 19:51:23 +01:00
bus
ARM: SoC driver updates for 5.1
2019-03-06 09:41:12 -08:00
cdrom
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char
Merge branch 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-03-10 17:37:29 -07:00
clk
We have a fairly balanced mix of clk driver updates and clk framework
2019-03-14 08:46:17 -07:00
clocksource
clocksource/drivers/clps711x: Remove board support
2019-03-24 11:30:11 +01:00
connector
connector: fix unsafe usage of ->real_parent
2019-03-08 15:06:38 -08:00
cpufreq
cpufreq: scpi: Fix use after free
2019-03-28 11:14:31 +01:00
cpuidle
cpuidle: governor: Add new governors to cpuidle_governors again
2019-03-12 23:46:55 +01:00
crypto
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2019-03-13 09:51:17 -07:00
dax
device-dax for 5.1
2019-03-16 13:05:32 -07:00
dca
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devfreq
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dio
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dma
dmaengine: stm32-mdma: Revert "dmaengine: stm32-mdma: Add a check on read_u32_array"
2019-03-25 21:56:54 +05:30
dma-buf
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edac
Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-03-08 09:11:39 -08:00
eisa
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extcon
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firewire
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firmware
memblock: drop memblock_alloc_*_nopanic() variants
2019-03-12 10:04:02 -07:00
fmc
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fpga
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fsi
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gnss
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gpio
gpio fixes for v5.1-rc3
2019-03-29 03:04:47 +01:00
gpu
drm/i915 fixes for v5.2-rc3:
2019-03-29 10:45:11 +10:00
hid
Merge branch 'for-5.1/wacom' into for-linus
2019-03-05 15:43:05 +01:00
hsi
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hv
Char/Misc driver patches for 5.1-rc1
2019-03-06 14:18:59 -08:00
hwmon
hwmon: (ad7418) Add device tree probing
2019-02-25 09:06:00 -08:00
hwspinlock
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hwtracing
ARM updates for 5.1-rc1
2019-03-15 14:37:46 -07:00
i2c
i2c: i801: Add support for Intel Comet Lake
2019-03-20 17:42:23 +01:00
i3c
- Add a /* fall-through */ comment in the dw-i3c-master driver
2019-03-04 19:05:02 -08:00
ide
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
2019-03-11 09:34:00 -07:00
idle
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iio
- New Drivers
2019-03-08 10:02:58 -08:00
infiniband
i40iw: Avoid panic when handling the inetdev event
2019-03-17 21:40:40 -03:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2019-03-11 10:57:11 -07:00
interconnect
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iommu
Merge branch 'akpm' (patches from Andrew)
2019-03-29 16:02:28 -07:00
ipack
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irqchip
irqchip/irq-mvebu-sei: Make mvebu_sei_ap806_caps static
2019-03-21 16:43:00 +01:00
isdn
mISDN: hfcpci: Test both vendor & device ID for Digium HFC4S
2019-03-18 18:32:44 -07:00
leds
leds: trigger: netdev: use memcpy in device_name_store
2019-03-30 19:09:32 +01:00
lightnvm
pblk: fix max_io calculation
2019-03-07 08:59:26 -07:00
macintosh
treewide: add checks for the return value of memblock_alloc*()
2019-03-12 10:04:02 -07:00
mailbox
mailbox: imx: keep MU irq working during suspend/resume
2019-03-11 02:51:43 -05:00
mcb
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md
for-5.1/block-post-20190315
2019-03-16 12:36:39 -07:00
media
DMA mapping updates for 5.1
2019-03-10 11:54:48 -07:00
memory
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memstick
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message
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mfd
DMA mapping updates for 5.1
2019-03-10 11:54:48 -07:00
misc
5.1 Merge Window Pull Request
2019-03-09 15:53:03 -08:00
mmc
mmc: renesas_sdhi: limit block count to 16 bit for old revisions
2019-03-21 11:41:46 +01:00
mtd
This pull request contains updates for both UBI and UBIFS:
2019-03-13 09:34:35 -07:00
mux
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net
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-03-27 12:22:57 -07:00
nfc
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ntb
Fixes for switchtec debugability and mapping table entries, NTB
2019-03-15 14:32:59 -07:00
nubus
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nvdimm
device-dax for 5.1
2019-03-16 13:05:32 -07:00
nvme
nvmet: fix error flow during ns enable
2019-03-28 18:15:03 +01:00
nvmem
Char/Misc driver patches for 5.1-rc1
2019-03-06 14:18:59 -08:00
of
of: fix kmemleak crash caused by imbalance in early memory reservation
2019-03-12 10:04:02 -07:00
opp
PM / OPP: Update performance state when freq == old_freq
2019-03-12 09:45:56 +01:00
oprofile
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parisc
DMA mapping updates for 5.1
2019-03-10 11:54:48 -07:00
parport
Revert "parport: daisy: use new parport device model"
2019-03-25 14:49:00 -07:00
pci
PCI/LINK: Deduplicate bandwidth reports for multi-function devices
2019-03-25 17:59:07 -05:00
pcmcia
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perf
arm64 updates for 5.1:
2019-03-10 10:17:23 -07:00
phy
phy: sun4i-usb: Support set_mode to USB_HOST for non-OTG PHYs
2019-03-26 16:48:55 +09:00
pinctrl
This is the bulk of pin control changes for the v5.1 kernel cycle.
2019-03-11 11:12:50 -07:00
platform
Chrome Platform fixes for v5.1-rc2
2019-03-19 11:28:15 -07:00
pnp
ACPI/ACPICA: Trivial: fix spelling mistakes and fix whitespace formatting
2019-02-24 21:12:01 +01:00
power
power: reset: at91-reset: add support for sam9x60 SoC
2019-02-20 00:41:01 +01:00
powercap
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pps
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ps3
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ptp
Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-03-05 14:08:26 -08:00
pwm
pwm: atmel: Remove useless symbolic definitions
2019-03-04 12:52:49 +01:00
rapidio
rapidio/mport_cdev: mark expected switch fall-through
2019-03-07 18:32:02 -08:00
ras
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regulator
regulator: mc13xxx: Constify regulator_ops variables
2019-03-04 00:01:08 +00:00
remoteproc
remoteproc updates for v5.1
2019-03-14 09:00:06 -07:00
reset
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rpmsg
rpmsg: virtio: change header file sort style
2019-02-20 21:15:54 -08:00
rtc
chrome platform changes for v5.1
2019-03-12 09:46:32 -07:00
s390
SCSI fixes on 20190329
2019-03-29 14:58:49 -07:00
sbus
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scsi
scsi: ibmvfc: Clean up transport events
2019-03-27 21:34:20 -04:00
sfi
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sh
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siox
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slimbus
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sn
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soc
This pull request brings in a build fix for arm64 with bcm2835
2019-03-18 10:31:24 -07:00
soundwire
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spi
pci-v5.1-changes
2019-03-09 14:57:08 -08:00
spmi
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ssb
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staging
staging: vt6655: Remove vif check from vnt_interrupt
2019-03-29 17:25:45 +01:00
target
SCSI misc on 20190315
2019-03-16 12:51:50 -07:00
tc
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tee
ARM: SoC driver updates for 5.1
2019-03-06 09:41:12 -08:00
thermal
Merge branches 'fixes' and 'thermal-intel' into next
2019-03-18 22:37:44 +08:00
thunderbolt
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tty
tty: fix NULL pointer issue when tty_port ops is not set
2019-03-28 01:21:21 +09:00
uio
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usb
USB-serial fixes for 5.1-rc3
2019-03-29 15:31:16 +01:00
uwb
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vfio
powerpc updates for 5.1
2019-03-07 12:56:26 -08:00
vhost
virtio: fixes, cleanups
2019-03-10 12:47:57 -07:00
video
fbdev: sm712fb: fix white screen of death on reboot, don't set CR3B-CR3F
2019-04-01 17:46:58 +02:00
virt
virt: vbox: Implement passing requestor info to the host for VirtualBox 6.0.x
2019-03-28 01:55:18 +09:00
virtio
virtio: hint if callbacks surprisingly might sleep
2019-03-06 11:19:57 -05:00
visorbus
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vlynq
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vme
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w1
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watchdog
linux-watchdog 5.1-rc1 tag
2019-03-11 11:22:15 -07:00
xen
xen/balloon: Fix mapping PG_offline pages to user space
2019-03-15 15:35:35 +01:00
zorro
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Kconfig
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Makefile
IOMMU Updates for Linux v5.1
2019-03-10 12:29:52 -07:00