Commit b47e62b1 authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915: Utilize edp_disable_dsc from VBT 



Disable eDP DSC usage when instructed to do so by the VBT.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240517145356.26103-7-ville.syrjala@linux.intel.com


Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
parent cf235914

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

+4 −0
Original line number Diff line number Diff line
@@ -1525,6 +1525,10 @@ parse_edp(struct drm_i915_private *i915, 
	if (i915->display.vbt.version >= 244)

		panel->vbt.edp.max_link_rate =

			edp->edp_max_port_link_rate[panel_type] * 20;



	if (i915->display.vbt.version >= 251)

		panel->vbt.edp.dsc_disable =

			panel_bool(edp->edp_dsc_disable, panel_type);

}



static void

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

+1 −0
Original line number Diff line number Diff line
@@ -335,6 +335,7 @@ struct intel_vbt_panel_data { 
		u8 drrs_msa_timing_delay;

		bool low_vswing;

		bool hobl;

		bool dsc_disable;

	} edp;



	struct {

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

+4 −0
Original line number Diff line number Diff line
@@ -1181,6 +1181,10 @@ bool intel_dp_has_dsc(const struct intel_connector *connector) 
	if (connector->mst_port && !HAS_DSC_MST(i915))

		return false;



	if (connector->base.connector_type == DRM_MODE_CONNECTOR_eDP &&

	    connector->panel.vbt.edp.dsc_disable)

		return false;



	if (!drm_dp_sink_supports_dsc(connector->dp.dsc_dpcd))

		return false;