From: Imre Deak Date: Mon, 16 Feb 2026 07:04:18 +0000 (+0200) Subject: drm/i915/dp: Add missing slice count check during mode validation X-Git-Tag: v7.1-rc1~167^2~24^2~136 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=ec4db429fd38e5c5cbea3521049739fd2718845c;p=thirdparty%2Flinux.git 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 --- diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index b5fe7d8ba5864..d1caa20370123 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2595,6 +2595,9 @@ 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,