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drm/amd/display: Set fec register init value

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[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: Jingwen Zhu <Jingwen.Zhu@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Jingwen Zhu <Jingwen.Zhu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jingwen Zhu 2022-03-15 13:15:27 +08:00 committed by Alex Deucher
parent 71d7a55364
commit 5abef8e5ce
3 changed files with 21 additions and 15 deletions
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24
drivers/gpu/drm/amd/display/dc/core/dc_link.c
View File

@ -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;
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;
if (dc_link_is_fec_supported(link) && !link->dc->debug.disable_fec && !is_fec_disable)
ret = true;
return ret;
return !force_disable && dc_link_is_fec_supported(link);
}
uint32_t dc_bandwidth_in_kbps_from_timing(

6
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
View File

@ -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 */

6
drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c
View File

@ -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 */