Commit 5abef8e5 authored by Jingwen Zhu's avatar Jingwen Zhu Committed by Alex Deucher
Browse files

drm/amd/display: Set fec register init value 



[Why]
We don't include this eDP FEC init on fastboot.

[How]
Set the fec to init value when stopping driver &get the fec register value to check should enable FEC.

Co-authored-by: default avatarJingwen Zhu <Jingwen.Zhu@amd.com>
Reviewed-by: default avatarWenjing Liu <Wenjing.Liu@amd.com>
Acked-by: default avatarAlex Hung <alex.hung@amd.com>
Signed-off-by: default avatarJingwen Zhu <Jingwen.Zhu@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 71d7a553

drivers/gpu/drm/amd/display/dc/core/dc_link.c

+12 −14
Original line number Diff line number Diff line
@@ -4683,22 +4683,20 @@ bool dc_link_is_fec_supported(const struct dc_link *link) 


bool dc_link_should_enable_fec(const struct dc_link *link)

{

	bool is_fec_disable = false;

	bool ret = false;

	bool force_disable = false;



	if ((link->connector_signal != SIGNAL_TYPE_DISPLAY_PORT_MST &&

	if (link->fec_state == dc_link_fec_enabled)

		force_disable = false;

	else if (link->connector_signal != SIGNAL_TYPE_DISPLAY_PORT_MST &&

			link->local_sink &&

			link->local_sink->edid_caps.panel_patch.disable_fec) ||

			(link->connector_signal == SIGNAL_TYPE_EDP

				// enable FEC for EDP if DSC is supported

				&& link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_SUPPORT == false

				))

		is_fec_disable = true;



	if (dc_link_is_fec_supported(link) && !link->dc->debug.disable_fec && !is_fec_disable)

		ret = true;



	return ret;

			link->local_sink->edid_caps.panel_patch.disable_fec)

		force_disable = true;

	else if (link->connector_signal == SIGNAL_TYPE_EDP

			&& link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.

			 dsc_support.DSC_SUPPORT == false)

		force_disable = true;



	return !force_disable && dc_link_is_fec_supported(link);

}



uint32_t dc_bandwidth_in_kbps_from_timing(

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

+5 −1
Original line number Diff line number Diff line
@@ -1493,8 +1493,12 @@ void dcn10_init_hw(struct dc *dc) 


		/* Check for enabled DIG to identify enabled display */

		if (link->link_enc->funcs->is_dig_enabled &&

			link->link_enc->funcs->is_dig_enabled(link->link_enc))

			link->link_enc->funcs->is_dig_enabled(link->link_enc)) {

			link->link_status.link_active = true;

			if (link->link_enc->funcs->fec_is_active &&

					link->link_enc->funcs->fec_is_active(link->link_enc))

				link->fec_state = dc_link_fec_enabled;

		}

	}



	/* Power gate DSCs */

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c

+5 −1
Original line number Diff line number Diff line
@@ -188,8 +188,12 @@ void dcn31_init_hw(struct dc *dc) 


		/* Check for enabled DIG to identify enabled display */

		if (link->link_enc->funcs->is_dig_enabled &&

			link->link_enc->funcs->is_dig_enabled(link->link_enc))

			link->link_enc->funcs->is_dig_enabled(link->link_enc)) {

			link->link_status.link_active = true;

			if (link->link_enc->funcs->fec_is_active &&

					link->link_enc->funcs->fec_is_active(link->link_enc))

				link->fec_state = dc_link_fec_enabled;

		}

	}



	/* Enables outbox notifications for usb4 dpia */