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drm/i915/dp: Add missing slice count check during mode validation

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Add the missing check for a valid slice count during
mode validation when DSC is enabled.

Cc: Vinod Govindapillai <vinod.govindapillai@intel.com>
Fixes: 745395b51c ("drm/i915/dp: Add intel_dp_mode_valid_with_dsc()")
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260216070421.714884-2-imre.deak@intel.com
(cherry picked from commit ec4db429fd)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Imre Deak
2026-02-16 09:04:18 +02:00
committed by Joonas Lahtinen
parent 57b85fd53f
commit 777a02812f
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/display/intel_dp.c
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@@ -2557,6 +2557,9 @@ bool intel_dp_mode_valid_with_dsc(struct intel_connector *connector,
if (min_bpp_x16 <= 0 || min_bpp_x16 > max_bpp_x16)
return false;
if (dsc_slice_count == 0)
return false;
return is_bw_sufficient_for_dsc_config(intel_dp,
link_clock, lane_count,
mode_clock, mode_hdisplay,