[PATCH 10/20] drm/amd/display: decide link training settings based on channel coding

[Stylon Wang]

From: Wenjing Liu <wenjing.liu at amd.com>

[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: Wenjing Liu <wenjing.liu at amd.com>
Reviewed-by: George Shen <George.Shen at amd.com>
Acked-by: Stylon Wang <stylon.wang at amd.com>
---
 .../gpu/drm/amd/display/dc/core/dc_link_dp.c  | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 396ac89a3c0e..c295e48c697b 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -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,
-- 
2.25.1