else
lt_settings->link_settings.link_spread = LINK_SPREAD_05_DOWNSPREAD_30KHZ;
+ lt_settings->lttpr_mode = link->lttpr_mode;
+
/* Initialize lane settings overrides */
if (overrides->voltage_swing != NULL)
lt_settings->voltage_swing = overrides->voltage_swing;
{
uint8_t repeater_mode = DP_PHY_REPEATER_MODE_TRANSPARENT;
+ DC_LOG_HW_LINK_TRAINING("%s\n Set LTTPR to Transparent Mode\n", __func__);
core_link_write_dpcd(link,
DP_PHY_REPEATER_MODE,
(uint8_t *)&repeater_mode,
sizeof(repeater_mode));
}
-static void configure_lttpr_mode_non_transparent(struct dc_link *link)
+static void configure_lttpr_mode_non_transparent(
+ struct dc_link *link,
+ const struct link_training_settings *lt_settings)
{
/* aux timeout is already set to extended */
/* RESET/SET lttpr mode to enable non transparent mode */
enum dc_status result = DC_ERROR_UNEXPECTED;
uint8_t repeater_mode = DP_PHY_REPEATER_MODE_TRANSPARENT;
- DC_LOG_HW_LINK_TRAINING("%s\n Set LTTPR to Transparent Mode\n", __func__);
- result = core_link_write_dpcd(link,
- DP_PHY_REPEATER_MODE,
- (uint8_t *)&repeater_mode,
- sizeof(repeater_mode));
+ enum dp_link_encoding encoding = dp_get_link_encoding_format(<_settings->link_settings);
+
+ if (encoding == DP_8b_10b_ENCODING) {
+ DC_LOG_HW_LINK_TRAINING("%s\n Set LTTPR to Transparent Mode\n", __func__);
+ result = core_link_write_dpcd(link,
+ DP_PHY_REPEATER_MODE,
+ (uint8_t *)&repeater_mode,
+ sizeof(repeater_mode));
+
+ }
if (result == DC_OK) {
link->dpcd_caps.lttpr_caps.mode = repeater_mode;
link->dpcd_caps.lttpr_caps.mode = repeater_mode;
}
- repeater_cnt = dp_convert_to_count(link->dpcd_caps.lttpr_caps.phy_repeater_cnt);
-
- for (repeater_id = repeater_cnt; repeater_id > 0; repeater_id--) {
- aux_interval_address = DP_TRAINING_AUX_RD_INTERVAL_PHY_REPEATER1 +
- ((DP_REPEATER_CONFIGURATION_AND_STATUS_SIZE) * (repeater_id - 1));
- core_link_read_dpcd(
- link,
- aux_interval_address,
- (uint8_t *)&link->dpcd_caps.lttpr_caps.aux_rd_interval[repeater_id - 1],
- sizeof(link->dpcd_caps.lttpr_caps.aux_rd_interval[repeater_id - 1]));
- link->dpcd_caps.lttpr_caps.aux_rd_interval[repeater_id - 1] &= 0x7F;
+ if (encoding == DP_8b_10b_ENCODING) {
+ repeater_cnt = dp_convert_to_count(link->dpcd_caps.lttpr_caps.phy_repeater_cnt);
+ for (repeater_id = repeater_cnt; repeater_id > 0; repeater_id--) {
+ aux_interval_address = DP_TRAINING_AUX_RD_INTERVAL_PHY_REPEATER1 +
+ ((DP_REPEATER_CONFIGURATION_AND_STATUS_SIZE) * (repeater_id - 1));
+ core_link_read_dpcd(
+ link,
+ aux_interval_address,
+ (uint8_t *)&link->dpcd_caps.lttpr_caps.aux_rd_interval[repeater_id - 1],
+ sizeof(link->dpcd_caps.lttpr_caps.aux_rd_interval[repeater_id - 1]));
+ link->dpcd_caps.lttpr_caps.aux_rd_interval[repeater_id - 1] &= 0x7F;
+ }
}
}
}
/* Configure lttpr mode */
if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT)
- configure_lttpr_mode_non_transparent(link);
+ configure_lttpr_mode_non_transparent(link, <_settings);
else if (link->lttpr_mode == LTTPR_MODE_TRANSPARENT)
configure_lttpr_mode_transparent(link);