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| author | Imre Deak <imre.deak@intel.com> | 2013-08-23 23:50:23 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-08-30 00:07:27 +0200 |
| commit | 77fa4cbd5fa389e28419bbe8ac491b5fdd54840d (patch) | |
| tree | bab3ccbedb5197532d34409543f7ec1b2e013170 /drivers | |
| parent | d8dfad3876e4386666b759da3c833d62fb8b2267 (diff) | |
| download | linux-77fa4cbd5fa389e28419bbe8ac491b5fdd54840d.tar.gz linux-77fa4cbd5fa389e28419bbe8ac491b5fdd54840d.tar.bz2 linux-77fa4cbd5fa389e28419bbe8ac491b5fdd54840d.zip | |
drm/i915: ivb: fix edp voltage swing reg val
Fix the typo introduced in
commit 1a2eb4604b85c5efb343da8a4dcf41288fcfca85
Author: Keith Packard <keithp@keithp.com>
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
CC: stable@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64880
Tested-by: Jeremy Moles <cubicool@gmail.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 53cddd985406..342f1f336168 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4440,7 +4440,7 @@ #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) |