diff --git a/[refs] b/[refs]
index 05b395f37bec..4965359f1e00 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2c9d97545914cc764786702f361a1f1c9bb8dfa9
+refs/heads/master: 1af5fa1b7e5ff8332f8a2ee3c5fb44d93b34868d
diff --git a/trunk/drivers/gpu/drm/i915/intel_dp.c b/trunk/drivers/gpu/drm/i915/intel_dp.c
index 27805a9ca877..c7aa29bfdea9 100644
--- a/trunk/drivers/gpu/drm/i915/intel_dp.c
+++ b/trunk/drivers/gpu/drm/i915/intel_dp.c
@@ -883,6 +883,7 @@ static void ironlake_edp_pll_off(struct drm_encoder *encoder)
 	dpa_ctl = I915_READ(DP_A);
 	dpa_ctl |= DP_PLL_ENABLE;
 	I915_WRITE(DP_A, dpa_ctl);
+	POSTING_READ(DP_A);
 	udelay(200);
 }