drm/i915: Drop WaDisableVDSUtnitClockGating:vlv

WaDisableVDSUtnitClockGating was only relevant for early steepings of
VLV.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index dd287910b2f67a1b14e6ee84857f45210b09d473..8052b864ea522bb69bb00bb9285201dae15fa44a 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4931,11 +4931,8 @@ static void valleyview_init_clock_gating(struct drm_device *dev)
        /*
         * According to the spec, bit 13 (RCZUNIT) must be set on IVB.
         * This implements the WaDisableRCZUnitClockGating:vlv workaround.
-        *
-        * Also apply WaDisableVDSUnitClockGating:vlv.
         */
        I915_WRITE(GEN6_UCGCTL2,
-                  GEN7_VDSUNIT_CLOCK_GATE_DISABLE |
                   GEN7_TDLUNIT_CLOCK_GATE_DISABLE |
                   GEN6_RCZUNIT_CLOCK_GATE_DISABLE);