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drm/amd/display: add function for eDP and backlight power on

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[HOW&WHY]
Add function to be used for early eDP power on

Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Evgenii Krasnikov <Evgenii.Krasnikov@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evgenii Krasnikov 2021-11-15 17:21:51 -05:00 committed by Alex Deucher
parent 9602044d1c
commit 0a04390418
2 changed files with 12 additions and 0 deletions
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11
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
View File

@ -6360,3 +6360,14 @@ bool is_dp_128b_132b_signal(struct pipe_ctx *pipe_ctx)
dc_is_dp_signal(pipe_ctx->stream->signal));
}
#endif
void edp_panel_backlight_power_on(struct dc_link *link)
{
if (link->connector_signal != SIGNAL_TYPE_EDP)
return;
link->dc->hwss.edp_power_control(link, true);
link->dc->hwss.edp_wait_for_hpd_ready(link, true);
if (link->dc->hwss.edp_backlight_control)
link->dc->hwss.edp_backlight_control(link, true);
}

1
drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h
View File

@ -217,4 +217,5 @@ bool is_dp_128b_132b_signal(struct pipe_ctx *pipe_ctx);
void reset_dp_hpo_stream_encoders_for_link(struct dc_link *link);
bool dp_retrieve_lttpr_cap(struct dc_link *link);
void edp_panel_backlight_power_on(struct dc_link *link);
#endif /* __DC_LINK_DP_H__ */