From 777a02812f739af9e349cd0f695400a1d84053f4 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Mon, 16 Feb 2026 09:04:18 +0200 Subject: [PATCH] drm/i915/dp: Add missing slice count check during mode validation Add the missing check for a valid slice count during mode validation when DSC is enabled. Cc: Vinod Govindapillai Fixes: 745395b51c26 ("drm/i915/dp: Add intel_dp_mode_valid_with_dsc()") Reviewed-by: Ankit Nautiyal Signed-off-by: Imre Deak Link: https://patch.msgid.link/20260216070421.714884-2-imre.deak@intel.com (cherry picked from commit ec4db429fd38e5c5cbea3521049739fd2718845c) Signed-off-by: Joonas Lahtinen --- drivers/gpu/drm/i915/display/intel_dp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index e9f1ee1eafae..559cf3bb23fd 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -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, -- 2.30.2