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8069053880e0ee3a75fd6d7e0a30293265fe3de4
linux/drivers/video/fbdev
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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
..
aty
fbdev: Use of_node_name_eq for node name comparisons
2019-02-08 19:24:45 +01:00
core
fbdev: list all pci memory bars as conflicting apertures
2019-04-01 17:46:57 +02:00
geode
video: fbdev: geode: remove ifdef OLPC noise
2019-02-08 19:24:46 +01:00
i810
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
intelfb
video: fbdev: intelfb: deprecate pci_get_bus_and_slot()
2018-01-17 08:16:46 -06:00
kyro
video: fbdev: kyro: constify pci_device_id.
2017-08-01 17:20:42 +02:00
matrox
powerpc, fbdev: Use NV_CMODE and NV_VMODE only when CONFIG_PPC32 && CONFIG_PPC_PMAC && CONFIG_NVRAM
2019-01-22 10:21:45 +01:00
mb862xx
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
mbx
fbdev: mbx: fix a misspelled variable name
2019-03-05 12:36:33 +01:00
mmp
drivers: video: fbdev: Kconfig: pedantic cleanups
2019-04-01 17:46:57 +02:00
nvidia
Merge tag 'fbdev-v4.18' of git://github.com/bzolnier/linux
2018-06-17 05:00:24 +09:00
omap
drivers: video: fbdev: Kconfig: pedantic cleanups
2019-04-01 17:46:57 +02:00
omap2
drivers: video: fbdev: Kconfig: pedantic cleanups
2019-04-01 17:46:57 +02:00
riva
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
savage
video: fbdev: savage: fix indentation issue
2019-04-01 17:46:54 +02:00
sis
video: fbdev: sis: Remove unnecessary parentheses and commented code
2018-10-08 12:57:36 +02:00
vermilion
video: fbdev: vermilion: use 64-bit arithmetic instead of 32-bit
2018-03-12 17:06:54 +01:00
via
fbdev/via: fix spelling mistake "Expandsion" -> "Expansion"
2019-02-08 19:24:44 +01:00
68328fb.c
video: fbdev: annotate fb_fix_screeninfo with const and __initconst
2017-09-04 16:00:49 +02:00
acornfb.c
…
acornfb.h
…
amba-clcd-nomadik.c
…
amba-clcd-nomadik.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
amba-clcd-versatile.c
…
amba-clcd-versatile.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
amba-clcd.c
video: ARM CLCD: Improve a size determination in clcdfb_probe()
2018-03-28 16:34:29 +02:00
amifb.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
arcfb.c
video: fbdev: arcfb: mark expected switch fall-through
2018-10-08 12:57:37 +02:00
arkfb.c
video: fbdev: arkfb: constify pci_device_id.
2017-08-01 17:20:42 +02:00
asiliantfb.c
video: fbdev: asiliantfb: constify pci_device_id.
2017-08-01 17:20:41 +02:00
atafb_iplan2p2.c
fbdev: atafb: Remove obsolete module support
2019-04-01 17:46:55 +02:00
atafb_iplan2p4.c
fbdev: atafb: Remove obsolete module support
2019-04-01 17:46:55 +02:00
atafb_iplan2p8.c
fbdev: atafb: Remove obsolete module support
2019-04-01 17:46:55 +02:00
atafb_mfb.c
fbdev: atafb: Remove obsolete module support
2019-04-01 17:46:55 +02:00
atafb_utils.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
atafb.c
fbdev: atafb: Modernize printing of kernel messages
2019-04-01 17:46:55 +02:00
atafb.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
atmel_lcdfb.c
video: fbdev: atmel_lcdfb: drop AVR and platform_data support
2019-04-01 17:46:56 +02:00
au1100fb.c
Merge tag 'fbdev-v4.18' of git://github.com/bzolnier/linux
2018-06-17 05:00:24 +09:00
au1100fb.h
…
au1200fb.c
video: fbdev: fix spelling mistake: "frambuffer" -> "framebuffer"
2018-05-15 12:41:11 +02:00
au1200fb.h
fbdev: au1200fb: delete duplicate header contents
2018-01-04 16:53:49 +01:00
broadsheetfb.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
bt431.h
…
bt455.h
…
bw2.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
c2p_core.h
…
c2p_iplan2.c
…
c2p_planar.c
…
c2p.h
…
carminefb_regs.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
carminefb.c
…
carminefb.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
cg3.c
fbdev: Use of_node_name_eq for node name comparisons
2019-02-08 19:24:45 +01:00
cg6.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
cg14.c
fbdev: Use of_node_name_eq for node name comparisons
2019-02-08 19:24:45 +01:00
chipsfb.c
fbdev: chipsfb: remove set but not used variable 'size'
2019-02-08 19:24:45 +01:00
cirrusfb.c
video: fbdev: cirrusfb: mark expected switch fall-throughs
2017-11-09 18:09:32 +01:00
clps711x-fb.c
video: clps711x-fb: release disp device node in probe()
2018-12-20 19:13:07 +01:00
cobalt_lcdfb.c
video: cobalt_lcdfb: constify fb_fix_screeninfo structure
2017-08-01 17:20:39 +02:00
controlfb.c
powerpc, fbdev: Use NV_CMODE and NV_VMODE only when CONFIG_PPC32 && CONFIG_PPC_PMAC && CONFIG_NVRAM
2019-01-22 10:21:45 +01:00
controlfb.h
fbdev: controlfb: Add missing modes to fix out of bounds access
2017-11-09 18:09:33 +01:00
cyber2000fb.c
video: fbdev: make fb_videomode const
2017-09-04 16:00:49 +02:00
cyber2000fb.h
…
da8xx-fb.c
cross-tree: phase out dma_zalloc_coherent()
2019-01-08 07:58:37 -05:00
dnfb.c
video/fbdev/dnfb: Use common error handling code in dnfb_probe()
2017-11-09 18:09:31 +01:00
edid.h
…
efifb.c
efifb: BGRT: Add nobgrt option
2018-09-26 18:11:22 +02:00
ep93xx-fb.c
…
fb-puv3.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
ffb.c
fbdev: Use of_node_name_eq for node name comparisons
2019-02-08 19:24:45 +01:00
fm2fb.c
video: fm2fb: constify zorro_device_id
2017-09-04 16:00:49 +02:00
fsl-diu-fb.c
fbdev: fsl-diu: remove redundant null check on cmap
2018-12-20 19:13:08 +01:00
g364fb.c
…
gbefb.c
…
goldfishfb.c
video: goldfishfb: fix memory leak on driver remove
2018-07-24 19:11:27 +02:00
grvga.c
video: fbdev: annotate fb_fix_screeninfo with const and __initconst
2017-09-04 16:00:49 +02:00
gxt4500.c
…
hecubafb.c
…
hgafb.c
video: hgafb: fix potential NULL pointer dereference
2019-04-01 17:46:58 +02:00
hitfb.c
…
hpfb.c
…
hyperv_fb.c
use the new async probing feature for the hyperv drivers
2018-07-03 13:02:28 +02:00
i740_reg.h
…
i740fb.c
video: fbdev: mark expected switch fall-throughs
2018-07-24 19:11:28 +02:00
imsttfb.c
video: imsttfb: fix potential NULL pointer dereferences
2019-04-01 17:46:58 +02:00
imxfb.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
jz4740_fb.c
…
Kconfig
drivers: video: fbdev: Kconfig: pedantic cleanups
2019-04-01 17:46:57 +02:00
leo.c
fbdev: Convert to using %pOFn instead of device_node.name
2018-10-08 12:57:36 +02:00
macfb.c
video/macfb: Always initialize DAFB colour table pointer register
2019-04-01 17:46:55 +02:00
macmodes.c
…
macmodes.h
…
Makefile
video: fbdev: remove dead old CLPS711x LCD support driver
2018-10-24 11:26:32 +02:00
maxinefb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
metronomefb.c
video: fbdev: metronomefb: fix some off by one bugs
2018-07-24 19:11:26 +02:00
mx3fb.c
…
mxsfb.c
fbdev: mxsfb: implement FB_PRE_INIT_FB option
2019-04-01 17:46:53 +02:00
n411.c
…
neofb.c
video: fbdev: neofb: constify pci_device_id.
2017-08-01 17:20:44 +02:00
nuc900fb.c
…
nuc900fb.h
…
ocfb.c
…
offb.c
video: offb: annotate implicit fall throughs
2019-02-08 19:24:46 +01:00
p9100.c
fbdev: Convert to using %pOFn instead of device_node.name
2018-10-08 12:57:36 +02:00
platinumfb.c
powerpc, fbdev: Use NV_CMODE and NV_VMODE only when CONFIG_PPC32 && CONFIG_PPC_PMAC && CONFIG_NVRAM
2019-01-22 10:21:45 +01:00
platinumfb.h
…
pm2fb.c
video: fbdev: mark expected switch fall-throughs
2018-07-24 19:11:28 +02:00
pm3fb.c
video: fbdev: pm3fb: constify pci_device_id.
2017-08-01 17:20:45 +02:00
pmag-aa-fb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
pmag-ba-fb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
pmagb-b-fb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
ps3fb.c
video: fbdev: annotate fb_fix_screeninfo with const and __initconst
2017-09-04 16:00:49 +02:00
pvr2fb.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
pxa3xx-gcu.c
video: fbdev: pxa3xx_gcu: add devicetree bindings
2018-07-24 19:11:25 +02:00
pxa3xx-gcu.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pxa168fb.c
pxa168fb: trivial typo fix
2018-12-20 19:13:09 +01:00
pxa168fb.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pxafb.c
video: fbdev: pxafb: Fix "WARNING: invalid free of devm_ allocated data"
2018-12-20 19:13:08 +01:00
pxafb.h
video: fbdev: pxafb: Add support for lcd-supply regulator
2018-07-24 19:11:26 +02:00
q40fb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
s1d13xxxfb.c
fbdev: s1d13xxxfb: remove m32r specific hacks
2018-03-26 15:56:46 +02:00
s3c2410fb.c
…
s3c2410fb.h
…
s3c-fb.c
video: fbdev: s3c-fb: remove dead platform code for Exynos and S5PV210 platforms
2018-03-28 16:34:29 +02:00
s3fb.c
video: fbdev: s3fb: constify pci_device_id.
2017-08-01 17:20:45 +02:00
sa1100fb.c
video: sa1100fb: move pseudo palette into sa1100fb_info structure
2017-10-17 16:01:13 +02:00
sa1100fb.h
video: sa1100fb: move pseudo palette into sa1100fb_info structure
2017-10-17 16:01:13 +02:00
sbuslib.c
fbdev: sbuslib: integer overflow in sbusfb_ioctl_helper()
2018-10-08 12:57:36 +02:00
sbuslib.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sh7760fb.c
media: fbdev: sh7760fb: convert to SPDX identifiers
2018-09-12 09:31:04 -04:00
sh_mobile_lcdcfb.c
video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support
2018-05-14 15:47:30 +02:00
sh_mobile_lcdcfb.h
video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support
2018-05-14 15:47:30 +02:00
simplefb.c
video: fbdev: simplefb: Stop including <linux/clk-provider.h>
2018-07-03 17:43:09 +02:00
skeletonfb.c
docs: fix broken references with multiple hints
2018-06-15 18:10:01 -03:00
sm501fb.c
video: sm501fb: Improve a size determination in sm501fb_probe()
2018-04-26 12:24:18 +02:00
sm712.h
…
sm712fb.c
fbdev: sm712fb: fix white screen of death on reboot, don't set CR3B-CR3F
2019-04-01 17:46:58 +02:00
smscufx.c
video: smscufx: Delete an error message for a failed memory allocation in ufx_realloc_framebuffer()
2018-03-28 16:34:28 +02:00
ssd1307fb.c
video: ssd1307fb: Do not hard code active-low reset sequence
2019-02-08 19:24:48 +01:00
sstfb.c
…
sticore.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
stifb.c
video/fbdev/stifb: Fix spelling mistake in fall-through annotation
2018-09-26 18:50:54 +02:00
sunxvr500.c
video: fbdev: sunxvr500: constify pci_device_id.
2017-08-01 17:20:43 +02:00
sunxvr1000.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
sunxvr2500.c
video: fbdev: sunxvr2500: constify pci_device_id.
2017-08-01 17:20:41 +02:00
tcx.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
tdfxfb.c
video: fbdev: mark expected switch fall-throughs
2018-07-24 19:11:28 +02:00
tgafb.c
…
tmiofb.c
…
tridentfb.c
video: fbdev: tridentfb: remove deadcode on unreachable case statement
2018-07-24 19:11:28 +02:00
udlfb.c
udlfb: introduce a rendering mutex
2019-04-01 17:46:57 +02:00
uvesafb.c
fbdev: uvesafb: fix spelling mistake "memoery" -> "memory"
2018-12-20 19:13:08 +01:00
valkyriefb.c
powerpc, fbdev: Use NV_CMODE and NV_VMODE only when CONFIG_PPC32 && CONFIG_PPC_PMAC && CONFIG_NVRAM
2019-01-22 10:21:45 +01:00
valkyriefb.h
…
vesafb.c
video: fbdev: vesafb: fix indentation issue
2019-04-01 17:46:54 +02:00
vfb.c
vfb: fix video mode and line_length being set when loaded
2018-01-04 16:53:50 +01:00
vga16fb.c
video: fbdev: remove redundant self assignment of 'height'
2017-12-29 19:48:43 +01:00
vt8500lcdfb.c
video/fbdev/vt8500lcdfb: Delete an error message for a failed memory allocation in vt8500lcd_probe()
2017-12-29 19:48:44 +01:00
vt8500lcdfb.h
…
vt8623fb.c
video: fbdev: vt8623fb: constify vt8623_timing_regs
2017-08-18 19:56:40 +02:00
w100fb.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
w100fb.h
…
wm8505fb_regs.h
…
wm8505fb.c
video/fbdev/wm8505fb: Delete an error message for a failed memory allocation in wm8505fb_probe()
2017-12-29 19:48:43 +01:00
wmt_ge_rops.c
…
wmt_ge_rops.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xen-fbfront.c
xen, fbfront: mark expected switch fall-through
2019-04-01 17:46:57 +02:00
xilinxfb.c
video: fbdev: Fix multiple style issues in xilinxfb
2017-08-21 16:49:57 +02:00