Commit 7cf82b25 authored Nov 27, 2023 by Ville Syrjälä Committed by Jani Nikula Dec 05, 2023

drm/i915/mst: Fix .mode_valid_ctx() return values



.mode_valid_ctx() returns an errno, not the mode status. Fix
the code to do the right thing.

Cc: stable@vger.kernel.org
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Fixes: d51f25eb ("drm/i915: Add DSC support to MST path")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127145028.4899-2-ville.syrjala@linux.intel.com


Reviewed-by: Jani Nikula <jani.nikula@intel.com>
(cherry picked from commit c1799032)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

parent 20c2dbff

drivers/gpu/drm/i915/display/intel_dp_mst.c

+8 −4

Original line number	Diff line number	Diff line
		@@ -1031,11 +1031,15 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
		* Big joiner configuration needs DSC for TGL which is not true for
		* XE_LPD where uncompressed joiner is supported.
		*/
		if (DISPLAY_VER(dev_priv) < 13 && bigjoiner && !dsc)
		return MODE_CLOCK_HIGH;
		if (DISPLAY_VER(dev_priv) < 13 && bigjoiner && !dsc) {
		*status = MODE_CLOCK_HIGH;
		return 0;
		}

		if (mode_rate > max_rate && !dsc)
		return MODE_CLOCK_HIGH;
		if (mode_rate > max_rate && !dsc) {
		*status = MODE_CLOCK_HIGH;
		return 0;
		}

		*status = intel_mode_valid_max_plane_size(dev_priv, mode, false);
		return 0;