✗ CI.checkpatch: warning for drm/dp: Limit the DPCD probe quirk to the affected monitor (rev4)
Patchwork
patchwork at emeril.freedesktop.org
Thu Jun 5 10:36:55 UTC 2025
== Series Details ==
Series: drm/dp: Limit the DPCD probe quirk to the affected monitor (rev4)
URL : https://patchwork.freedesktop.org/series/149773/
State : warning
== Summary ==
+ KERNEL=/kernel
+ git clone https://gitlab.freedesktop.org/drm/maintainer-tools mt
Cloning into 'mt'...
warning: redirecting to https://gitlab.freedesktop.org/drm/maintainer-tools.git/
+ git -C mt rev-list -n1 origin/master
202708c00696422fd217223bb679a353a5936e23
+ cd /kernel
+ git config --global --add safe.directory /kernel
+ git log -n1
commit d6077647f7f3d5d9f2a3b2a176d609924a603d61
Author: Imre Deak <imre.deak at intel.com>
Date: Thu Jun 5 11:28:50 2025 +0300
drm/i915/dp: Disable the AUX DPCD probe quirk if it's not required
Reading DPCD registers has side-effects and some of these can cause a
problem for instance during link training. Based on this it's better to
avoid the probing quirk done before each DPCD register read, limiting
this to the monitor which requires it. The only known problematic
monitor is an external SST sink, so keep the quirk disabled always for
eDP and MST sinks. Reenable the quirk after a hotplug event and after
resuming from a power state without hotplug support, until the
subsequent EDID based detection.
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Jani Nikula <jani.nikula at linux.intel.com>
Signed-off-by: Imre Deak <imre.deak at intel.com>
+ /mt/dim checkpatch 8a08b8454eecd8f3abaf032d8fb0906b56fa7c6a drm-intel
1c40971484e8 drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS
-:42: WARNING:MISSING_FIXES_TAG: The commit message has 'stable@', perhaps it also needs a 'Fixes:' tag?
total: 0 errors, 1 warnings, 0 checks, 8 lines checked
ed75fa42c570 drm/edid: Define the quirks in an enum list
409ba970dadc drm/edid: Add support for quirks visible to DRM core and drivers
f724c432b602 drm/dp: Add an EDID quirk for the DPCD register access probe
d6077647f7f3 drm/i915/dp: Disable the AUX DPCD probe quirk if it's not required
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