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drm/amd/display: add an option to skip wait for HPD when powering on eDP panel

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[HOW/WHY]
Add an option to skip edp_wait_for_hpd_ready when necessary

Reviewed-by: Jayendran Ramani <Jayendran.Ramani@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@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 2022-05-17 14:21:24 -04:00 • committed by Alex Deucher
parent fff7eb56b3
commit b3859b16d2
2 changed files with 6 additions and 5 deletions
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5
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
View file

@ -6971,13 +6971,14 @@ bool is_dp_128b_132b_signal(struct pipe_ctx *pipe_ctx)
dc_is_dp_signal(pipe_ctx->stream->signal));
}
void edp_panel_backlight_power_on(struct dc_link *link)
void edp_panel_backlight_power_on(struct dc_link *link, bool wait_for_hpd)
{
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 (wait_for_hpd)
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);
}

6
drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h
View file

@ -193,6 +193,7 @@ enum dc_status dpcd_configure_lttpr_mode(
struct link_training_settings *lt_settings);
enum dp_link_encoding dp_get_link_encoding_format(const struct dc_link_settings *link_settings);
bool dp_retrieve_lttpr_cap(struct dc_link *link);
bool dpcd_write_128b_132b_sst_payload_allocation_table(
const struct dc_stream_state *stream,
struct dc_link *link,
@ -214,11 +215,10 @@ void enable_dp_hpo_output(struct dc_link *link,
void disable_dp_hpo_output(struct dc_link *link,
const struct link_resource *link_res,
enum signal_type signal);
void setup_dp_hpo_stream(struct pipe_ctx *pipe_ctx, bool enable);
bool is_dp_128b_132b_signal(struct pipe_ctx *pipe_ctx);
bool dp_retrieve_lttpr_cap(struct dc_link *link);
void edp_panel_backlight_power_on(struct dc_link *link);
void edp_panel_backlight_power_on(struct dc_link *link, bool wait_for_hpd);
void dp_receiver_power_ctrl(struct dc_link *link, bool on);
void dp_source_sequence_trace(struct dc_link *link, uint8_t dp_test_mode);
void dp_enable_link_phy(