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: Keep cached LTTPR mode up-to-date

Browse Source 
Nothing depends on the cached LTTPR mode, however for consistency keep
it up-to-date with the value programmed to the DPCD register.

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/20240708190029.271247-5-imre.deak@intel.com
This commit is contained in:
Imre Deak 2024-07-08 22:00:27 +03:00
parent 4613aa66e4
commit 61fe488fc7
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/i915/display/intel_dp_link_training.c
View File

@ -114,7 +114,13 @@ intel_dp_set_lttpr_transparent_mode(struct intel_dp *intel_dp, bool enable)
u8 val = enable ? DP_PHY_REPEATER_MODE_TRANSPARENT :
DP_PHY_REPEATER_MODE_NON_TRANSPARENT;
return drm_dp_dpcd_write(&intel_dp->aux, DP_PHY_REPEATER_MODE, &val, 1) == 1;
if (drm_dp_dpcd_write(&intel_dp->aux, DP_PHY_REPEATER_MODE, &val, 1) != 1)
return false;
intel_dp->lttpr_common_caps[DP_PHY_REPEATER_MODE -
DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV] = val;
return true;
}
static bool intel_dp_lttpr_transparent_mode_enabled(struct intel_dp *intel_dp)