Commit 4c247f8c authored by Wenjing Liu's avatar Wenjing Liu Committed by Alex Deucher
Browse files

drm/amd/display: decide link training settings based on channel coding 



[how]
Rename initialize_training_settings to decide_training_settings.
Call get link encoding format and decide training settings
based on current channel coding.

Signed-off-by: default avatarWenjing Liu <wenjing.liu@amd.com>
Reviewed-by: default avatarGeorge Shen <George.Shen@amd.com>
Acked-by: default avatarStylon Wang <stylon.wang@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 55bac4a7

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

+15 −4
Original line number Diff line number Diff line
@@ -1231,7 +1231,7 @@ enum link_training_result dp_check_link_loss_status( 
	return status;

}



static void initialize_training_settings(

static inline void decide_8b_10b_training_settings(

	 struct dc_link *link,

	const struct dc_link_settings *link_setting,

	const struct dc_link_training_overrides *overrides,
@@ -1327,6 +1327,17 @@ static void initialize_training_settings( 
		lt_settings->enhanced_framing = 1;

}



static void decide_training_settings(

		struct dc_link *link,

		const struct dc_link_settings *link_settings,

		const struct dc_link_training_overrides *overrides,

		struct link_training_settings *lt_settings)

{

	if (dp_get_link_encoding_format(link_settings) == DP_8b_10b_ENCODING)

		decide_8b_10b_training_settings(link, link_settings, overrides, lt_settings);

}





uint8_t dp_convert_to_count(uint8_t lttpr_repeater_count)

{

	switch (lttpr_repeater_count) {
@@ -1542,7 +1553,7 @@ bool dc_link_dp_perform_link_training_skip_aux( 
{

	struct link_training_settings lt_settings;



	initialize_training_settings(

	decide_training_settings(

			link,

			link_setting,

			&link->preferred_training_settings,
@@ -1592,7 +1603,7 @@ enum link_training_result dc_link_dp_perform_link_training( 
	uint8_t repeater_cnt;

	uint8_t repeater_id;



	initialize_training_settings(

	decide_training_settings(

			link,

			link_setting,

			&link->preferred_training_settings,
@@ -1877,7 +1888,7 @@ enum link_training_result dc_link_dp_sync_lt_attempt( 
	enum clock_source_id dp_cs_id = CLOCK_SOURCE_ID_EXTERNAL;

	bool fec_enable = false;



	initialize_training_settings(

	decide_training_settings(

		link,

		link_settings,

		lt_overrides,