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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2013-10-02 17:34:19 (GMT) |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-10-15 07:33:44 (GMT) |
| commit | cd66407810869709e0d6764409137d48c6812cfc (patch) | |
| tree | 3dd710675861cda9f3f8518d2355a1ddfc7e0a39 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | 61e6cfa80de5760bbe406f4e815b7739205754d2 (diff) | |
| download | linux-fsl-qoriq-cd66407810869709e0d6764409137d48c6812cfc.tar.xz | |
drm/i915: disable LVDS clock gating on CPT v2
Needed to prevent display corruption in high res panels.
v2: use correct unit names (Rodrigo)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Ulrich Drepper <drepper@gmail.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index f4c5e95..26c2ea3 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4759,7 +4759,9 @@ static void cpt_init_clock_gating(struct drm_device *dev) * gating for the panel power sequencer or it will fail to * start up when no ports are active. */ - I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE); + I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE | + PCH_DPLUNIT_CLOCK_GATE_DISABLE | + PCH_CPUNIT_CLOCK_GATE_DISABLE); I915_WRITE(SOUTH_CHICKEN2, I915_READ(SOUTH_CHICKEN2) | DPLS_EDP_PPS_FIX_DIS); /* The below fixes the weird display corruption, a few pixels shifted |