Commit 85b4360d authored by Imre Deak's avatar Imre Deak
Browse files

drm/i915/dp: Factor out align_max_sink_dsc_input_bpp() 



Factor out align_max_sink_dsc_input_bpp(), also used later for computing
the maximum DSC input BPP limit.

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/20251222153547.713360-4-imre.deak@intel.com
parent 7427f30e

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

+18 −10
Original line number Diff line number Diff line
@@ -1894,12 +1894,27 @@ int intel_dp_dsc_max_src_input_bpc(struct intel_display *display) 
	return intel_dp_dsc_min_src_input_bpc();

}



static int align_max_sink_dsc_input_bpp(const struct intel_connector *connector,

					int max_pipe_bpp)

{

	u8 dsc_bpc[3];

	int num_bpc;

	int i;



	num_bpc = drm_dp_dsc_sink_supported_input_bpcs(connector->dp.dsc_dpcd,

						       dsc_bpc);

	for (i = 0; i < num_bpc; i++) {

		if (dsc_bpc[i] * 3 <= max_pipe_bpp)

			return dsc_bpc[i] * 3;

	}



	return 0;

}



int intel_dp_dsc_compute_max_bpp(const struct intel_connector *connector,

				 u8 max_req_bpc)

{

	struct intel_display *display = to_intel_display(connector);

	int i, num_bpc;

	u8 dsc_bpc[3] = {};

	int dsc_max_bpc;



	dsc_max_bpc = intel_dp_dsc_max_src_input_bpc(display);
@@ -1909,14 +1924,7 @@ int intel_dp_dsc_compute_max_bpp(const struct intel_connector *connector, 


	dsc_max_bpc = min(dsc_max_bpc, max_req_bpc);



	num_bpc = drm_dp_dsc_sink_supported_input_bpcs(connector->dp.dsc_dpcd,

						       dsc_bpc);

	for (i = 0; i < num_bpc; i++) {

		if (dsc_max_bpc >= dsc_bpc[i])

			return dsc_bpc[i] * 3;

	}



	return 0;

	return align_max_sink_dsc_input_bpp(connector, dsc_max_bpc * 3);

}



static int intel_dp_source_dsc_version_minor(struct intel_display *display)