Commit 076c05a2 authored by Imre Deak's avatar Imre Deak
Browse files

drm/i915/dp: Export intel_dp_compute_min_compressed_bpp_x16() 



Export intel_dp_compute_min_compressed_bpp_x16() for use by a
follow-up change validating MST modes with DSC enabled.

Reviewed-by: default avatarAnkit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260216070421.714884-3-imre.deak@intel.com
parent ec4db429

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

+6 −4
Original line number Diff line number Diff line
@@ -2514,7 +2514,7 @@ dsc_throughput_quirk_max_bpp_x16(const struct intel_connector *connector, 
	return fxp_q4_from_int(12);

}



static int compute_min_compressed_bpp_x16(struct intel_connector *connector,

int intel_dp_compute_min_compressed_bpp_x16(struct intel_connector *connector,

					    enum intel_output_format output_format)

{

	int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
@@ -2581,7 +2581,8 @@ bool intel_dp_mode_valid_with_dsc(struct intel_connector *connector, 
				  int pipe_bpp, unsigned long bw_overhead_flags)

{

	struct intel_dp *intel_dp = intel_attached_dp(connector);

	int min_bpp_x16 = compute_min_compressed_bpp_x16(connector, output_format);

	int min_bpp_x16 = intel_dp_compute_min_compressed_bpp_x16(connector,

								  output_format);

	int max_bpp_x16 = compute_max_compressed_bpp_x16(connector,

							 mode_clock, mode_hdisplay,

							 num_joined_pipes,
@@ -2635,7 +2636,8 @@ intel_dp_compute_config_link_bpp_limits(struct intel_connector *connector, 
		limits->link.min_bpp_x16 = fxp_q4_from_int(limits->pipe.min_bpp);

	} else {

		limits->link.min_bpp_x16 =

			compute_min_compressed_bpp_x16(connector, crtc_state->output_format);

			intel_dp_compute_min_compressed_bpp_x16(connector,

								crtc_state->output_format);



		max_link_bpp_x16 =

			compute_max_compressed_bpp_x16(connector,

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

+2 −0
Original line number Diff line number Diff line
@@ -143,6 +143,8 @@ bool intel_digital_port_connected(struct intel_encoder *encoder); 
bool intel_digital_port_connected_locked(struct intel_encoder *encoder);

int intel_dp_dsc_compute_max_bpp(const struct intel_connector *connector,

				 u8 dsc_max_bpc);

int intel_dp_compute_min_compressed_bpp_x16(struct intel_connector *connector,

					    enum intel_output_format output_format);

bool intel_dp_mode_valid_with_dsc(struct intel_connector *connector,

				  int link_clock, int lane_count,

				  int mode_clock, int mode_hdisplay,