Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-09-20 06:53:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

drm/i915/dp: Reset cached LTTPR count if number of LTTPRs is unsupported

Browse Source 
After detection the cached LTTPR count can be checked to determine if
LTTPRs in non-transparent mode were detected. Reset the cached LTTPR
count if the reported number of LTTPRs is invalid to ensure the above
checks work as expected.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240708190029.271247-4-imre.deak@intel.com
This commit is contained in:
Imre Deak 2024-07-08 22:00:26 +03:00
parent 211ad49cf8
commit 4613aa66e4
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

@ -174,7 +174,7 @@ static int intel_dp_init_lttpr_phys(struct intel_dp *intel_dp, const u8 dpcd[DP_
* still taking into account any LTTPR common lane- rate/count limits.
*/
if (lttpr_count < 0)
return 0;
goto out_reset_lttpr_count;
if (!intel_dp_set_lttpr_transparent_mode(intel_dp, false)) {
lt_dbg(intel_dp, DP_PHY_DPRX,