diff options
| author | Imre Deak <imre.deak@intel.com> | 2013-08-23 23:50:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-07 21:58:15 -0700 |
| commit | 5817e3c7a152e2febbb342a807487e739395a973 (patch) | |
| tree | 16f2a77b8a18b2ace299e6aa3e161692d519a285 /drivers/gpu | |
| parent | 73bc40b87e7e61dea9e06576f7e1c5eaf49abe31 (diff) | |
drm/i915: ivb: fix edp voltage swing reg val
commit 77fa4cbd5fa389e28419bbe8ac491b5fdd54840d upstream.
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
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -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 d0319325e396..6884d01cf1c7 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3741,7 +3741,7 @@ #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) |