ARM: pxafb: don't disable controller on cpufreq transition if overlay in use
authorVasily Khoruzhick <anarsoul@gmail.com>
Fri, 11 Mar 2011 09:20:50 +0000 (11:20 +0200)
committerEric Miao <eric.y.miao@gmail.com>
Wed, 16 Mar 2011 09:44:58 +0000 (17:44 +0800)
commit27be9a9e378dad166fc81df310e052e7b67cb667
treefe67cf222a9c56c3cb2fd38e41af404d8223a3c8
parentdcf8eee94f7eb2671e6d5774e81d45ad06b4f980
ARM: pxafb: don't disable controller on cpufreq transition if overlay in use

It's not safe to disable controller if overlay(s) is enabled (results in
system hang). So we avoid to disable controller in this case. Userspace
should choose proper governor to avoid freq changing when overlay is in
use, otherwise LCD may blink.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
drivers/video/pxafb.c