github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 09:04:39 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/i915: Disable LTTPR detection on GLK once again

Browse Source 
The glk display version change is causing us to again attempt
LTTPR detection on glk. We must not do tha since glk doesn't
have a long enough AUX timeout. Restore the correct logic to
skip the detection.

Cc: Matt Roper <matthew.d.roper@intel.com>
Fixes: 2b5a4562ed ("drm/i915/display: Simplify GLK display version tests")
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210412054607.18133-4-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2021-04-12 08:46:05 +03:00 committed by Jani Nikula
parent 0fe6637d98
commit 543d592a73
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/i915/display/intel_dp_link_training.c
View File

@ -96,7 +96,7 @@ static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp)
* Detecting LTTPRs must be avoided on platforms with an AUX timeout
* period < 3.2ms. (see DP Standard v2.0, 2.11.2, 3.6.6.1).
*/
if (DISPLAY_VER(i915) < 10)
if (DISPLAY_VER(i915) < 10 || IS_GEMINILAKE(i915))
return false;
if (drm_dp_read_lttpr_common_caps(&intel_dp->aux,