From de9932d13c95c4125d2ed8703f5574fcc108bbcf Mon Sep 17 00:00:00 2001 From: "Xu, Anhua" Date: Tue, 21 Aug 2012 03:06:02 +0000 Subject: [PATCH] drm/i915: fix reassignment of variable "intel_dp->DP" In intel_dp_mode_set we OR in the exact same bits twice at the same spot. Kill one of the redundant assignments. This little regression was introduced by: commit 417e822deee1d2bcd8a8a60660c40a0903713f2b Author: Keith Packard Date: Tue Nov 1 19:54:11 2011 -0700 drm/i915: Treat PCH eDP like DP in most places PCH eDP has many of the same needs as regular PCH DP connections, including the DP_CTl bit settings, the TRANS_DP_CTL register. The reachable tag for this commit is: v3.1-5461-g417e822 Signed-off-by: Anhua Xu [danvet: Improved the commit message somewhat and ensured the diff is clearer.] Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 977d9d216c73..1ab371b8be01 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -850,10 +850,8 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, * supposed to be read-only. */ intel_dp->DP = I915_READ(intel_dp->output_reg) & DP_DETECTED; - intel_dp->DP |= DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0; /* Handle DP bits in common between all three register formats */ - intel_dp->DP |= DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0; switch (intel_dp->lane_count) { -- 2.30.2