https://github.com/torvalds/linux
Revision 770c12312ad617172b1a65b911d3e6564fc5aca8 authored by Takashi Iwai on 11 August 2012, 06:56:42 UTC, committed by Daniel Vetter on 11 August 2012, 19:15:16 UTC
When you reopen the lid on a laptop with PCH, the panel suddenly goes
blank sometimes.  It seems because BLC_PWM_CPU_CTL register is cleared
to zero when BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1 registers are
enabled.

This patch fixes the problem by moving the call of the function setting
BLC_PWM_CPU_CTL after enabling other two registers.

Reported-and-tested-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
1 parent 9830605
History
Tip revision: 770c12312ad617172b1a65b911d3e6564fc5aca8 authored by Takashi Iwai on 11 August 2012, 06:56:42 UTC
drm/i915: Fix blank panel at reopening lid
Tip revision: 770c123
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arch
block
crypto
drivers
firmware
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.gitignore -rw-r--r-- 1014 bytes
.mailmap -rw-r--r-- 4.4 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 92.7 KB
Kbuild -rw-r--r-- 2.5 KB
Kconfig -rw-r--r-- 252 bytes
MAINTAINERS -rw-r--r-- 210.4 KB
Makefile -rw-r--r-- 46.1 KB
README -rw-r--r-- 17.3 KB
REPORTING-BUGS -rw-r--r-- 3.3 KB

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