Commit a63bbb8d authored by Imre Deak's avatar Imre Deak
Browse files

drm/i915/dp: Fail state computation for invalid max sink compressed BPP value 



There is no reason to accept an invalid maximum sink compressed BPP
value (i.e. 0), fail the state computation in this case.

Reviewed-by: default avatarVinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: default avatarLuca Coelho <luciano.coelho@intel.com>
Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20251215192357.172201-16-imre.deak@intel.com
parent 5c2d7994

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

+1 −2
Original line number Diff line number Diff line
@@ -2623,8 +2623,7 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp, 
		dsc_sink_max_bpp = intel_dp_dsc_sink_max_compressed_bpp(connector,

									crtc_state,

									limits->pipe.max_bpp / 3);

		dsc_max_bpp = dsc_sink_max_bpp ?

			      min(dsc_sink_max_bpp, dsc_src_max_bpp) : dsc_src_max_bpp;

		dsc_max_bpp = min(dsc_sink_max_bpp, dsc_src_max_bpp);

		dsc_max_bpp = min(dsc_max_bpp, joiner_max_bpp);



		max_link_bpp_x16 = min(max_link_bpp_x16, fxp_q4_from_int(dsc_max_bpp));