diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-11-27 16:50:25 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-11-29 17:05:47 +0200 |
| commit | e0ef2daa8ca8ce4dbc2fd0959e383b753a87fd7d (patch) | |
| tree | 909d0553a0744e6c3499638851bb735dbcbd88d8 /drivers/gpu/drm/i915/display/intel_dp_mst.c | |
| parent | drm/i915/psr: Include some basic PSR information in the state dump (diff) | |
| download | linux-e0ef2daa8ca8ce4dbc2fd0959e383b753a87fd7d.tar.gz linux-e0ef2daa8ca8ce4dbc2fd0959e383b753a87fd7d.zip | |
drm/i915: Skip some timing checks on BXT/GLK DSI transcoders
Apparently some BXT/GLK systems have DSI panels whose timings
don't agree with the normal cpu transcoder hblank>=32 limitation.
This is perhaps fine as there are no specific hblank/etc. limits
listed for the BXT/GLK DSI transcoders.
Move those checks out from the global intel_mode_valid() into
into connector specific .mode_valid() hooks, skipping BXT/GLK
DSI connectors. We'll leave the basic [hv]display/[hv]total
checks in intel_mode_valid() as those seem like sensible upper
limits regardless of the transcoder used.
Cc: stable@vger.kernel.org
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/9720
Fixes: 8f4b1068e7fc ("drm/i915: Check some transcoder timing minimum limits")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127145028.4899-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 63364c9602ef..0514f825baf5 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -1282,6 +1282,10 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector, return 0; } + *status = intel_cpu_transcoder_mode_valid(dev_priv, mode); + if (*status != MODE_OK) + return 0; + if (mode->flags & DRM_MODE_FLAG_DBLSCAN) { *status = MODE_NO_DBLESCAN; return 0; |