From 4067d65ec039bf5fc175c123c588d09380e72fdc Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Fri, 23 Aug 2013 23:50:23 +0300 Subject: [PATCH] drm/i915: ivb: fix edp voltage swing reg val commit 77fa4cbd5fa389e28419bbe8ac491b5fdd54840d upstream. Fix the typo introduced in commit 1a2eb4604b85c5efb343da8a4dcf41288fcfca85 Author: Keith Packard Date: Wed Nov 16 16:26:07 2011 -0800 drm/i915: Hook up Ivybridge eDP This fixes eDP link-training failures and cases where all voltage swing /pre-emphasis levels were tried and failed during clock recovery and - as a fallback - we go on to do channel equalization with the last voltage swing/pre-emphasis level which will succeed. Both issues can lead to a blank screen. v2: - improve commit message Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64880 Tested-by: Jeremy Moles Signed-off-by: Imre Deak Reviewed-by: Paulo Zanoni Signed-off-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/i915/i915_reg.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 01f6c2cf471f..a365780aeb1e 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4246,7 +4246,7 @@ #define EDP_LINK_TRAIN_600MV_0DB_IVB (0x30 <<22) #define EDP_LINK_TRAIN_600MV_3_5DB_IVB (0x36 <<22) #define EDP_LINK_TRAIN_800MV_0DB_IVB (0x38 <<22) -#define EDP_LINK_TRAIN_800MV_3_5DB_IVB (0x33 <<22) +#define EDP_LINK_TRAIN_800MV_3_5DB_IVB (0x3e <<22) /* legacy values */ #define EDP_LINK_TRAIN_500MV_0DB_IVB (0x00 <<22) -- 2.34.1