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drm/i915: save/restore BLC histogram control reg across suspend/resume

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Turns out some machines, like the ThinkPad X40 don't come back if you
don't save/restore this register.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Jesse Barnes
2009-10-14 12:33:41 -07:00
committed by Eric Anholt
parent 58a27471d0
commit 0eb96d6ed3
3 changed files with 5 additions and 0 deletions
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drivers/gpu/drm/i915/i915_drv.h
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@@ -304,6 +304,7 @@ typedef struct drm_i915_private {
u32 saveDSPASURF;
u32 saveDSPATILEOFF;
u32 savePFIT_PGM_RATIOS;
u32 saveBLC_HIST_CTL;
u32 saveBLC_PWM_CTL;
u32 saveBLC_PWM_CTL2;
u32 saveFPB0;