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authorAlan Cox <alan@linux.intel.com>2012-03-05 14:22:16 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-05 14:53:01 -0800
commit055bf38d3d6069707e2d555cffdde629b8404ff2 (patch)
tree94c99f102d3cbd372fc124c663c311a6669c4ed8 /Documentation/io_ordering.txt
parentaa139092de3bb7d8b81f9b8433e12e87ac1eec3f (diff)
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drm, gma500: Fix Cedarview boot failures in 3.3-rc
Production GMA3600/3650 hardware turns out to be subtly different to the development platforms. This combined with a minor driver bug is causing the kernel to hang on these platforms. This patch does the following - turn down a couple of messages that were meant to be debug and are causing much confusion - ensure the hotplug interrupt is disabled on Cedartrail systems. - fix a bug where gtt roll mode called psbfb_sync, which tries to sync the 2D engine. On other devices it is harmless as the 2D engine is present but not in use when in gtt roll mode, on Cedartrail it causes a hang Without these changes 3.3-rc hangs on boot on Cedartrail based systems. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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