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| author | Eric Anholt <eric@anholt.net> | 2010-11-06 14:53:33 -0700 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-11-08 09:20:12 +0000 |
| commit | 67e92af01cb6f7e9a5fd5c930c43cd6f6ef45929 (patch) | |
| tree | 4f38b09eeb95365087a92d27744afd37c3ca40e8 /drivers/gpu/drm/i915/intel_display.c | |
| parent | de6e2eaf2c420bb8b0d4485913ef312a5539b489 (diff) | |
| download | lwn-67e92af01cb6f7e9a5fd5c930c43cd6f6ef45929.tar.gz lwn-67e92af01cb6f7e9a5fd5c930c43cd6f6ef45929.zip | |
drm/i915: Apply display workaround required according to the B-Spec.
Not known to fix any current bugs.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 5ab403556846..c41dae5ade32 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5819,6 +5819,10 @@ void intel_init_clock_gating(struct drm_device *dev) ILK_CLK_FBC); } + I915_WRITE(ILK_DISPLAY_CHICKEN2, + I915_READ(ILK_DISPLAY_CHICKEN2) | + ILK_ELPIN_409_SELECT); + if (IS_GEN5(dev)) { I915_WRITE(_3D_CHICKEN2, _3D_CHICKEN2_WM_READ_PIPELINED << 16 | |