diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c index 468e39589ed8..74e36b34d3f7 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c @@ -115,12 +115,14 @@ static enum link_training_result dpia_configure_link( DC_LOG_HW_LINK_TRAINING("%s\n DPIA(%d) configuring\n - LTTPR mode(%d)\n", __func__, link->link_id.enum_id - ENUM_ID_1, - link->lttpr_mode); + lt_settings->lttpr_mode); dp_decide_training_settings(link, link_setting, lt_settings); + dp_get_lttpr_mode_override(link, <_settings->lttpr_mode); + status = dpcd_configure_channel_coding(link, lt_settings); if (status != DC_OK && link->is_hpd_pending) return LINK_TRAINING_ABORT; @@ -178,7 +180,7 @@ static uint8_t dpia_build_set_config_data(enum dpia_set_config_type type, switch (type) { case DPIA_SET_CFG_SET_LINK: - data.set_link.mode = link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT ? 1 : 0; + data.set_link.mode = lt_settings->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT ? 1 : 0; break; case DPIA_SET_CFG_SET_PHY_TEST_MODE: break; @@ -553,7 +555,7 @@ static enum link_training_result dpia_training_cr_phase( { enum link_training_result result = LINK_TRAINING_CR_FAIL_LANE0; - if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) + if (lt_settings->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) result = dpia_training_cr_non_transparent(link, link_res, lt_settings, hop); else result = dpia_training_cr_transparent(link, link_res, lt_settings); @@ -830,7 +832,7 @@ static enum link_training_result dpia_training_eq_phase( { enum link_training_result result; - if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) + if (lt_settings->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) result = dpia_training_eq_non_transparent(link, link_res, lt_settings, hop); else result = dpia_training_eq_transparent(link, link_res, lt_settings); @@ -870,13 +872,14 @@ static enum dc_status dpcd_clear_lt_pattern(struct dc_link *link, uint32_t hop) * @param hop The Hop in display path. DPRX = 0. */ static enum link_training_result dpia_training_end(struct dc_link *link, + struct link_training_settings *lt_settings, uint32_t hop) { enum link_training_result result = LINK_TRAINING_SUCCESS; uint8_t repeater_cnt = 0; /* Number of hops/repeaters in display path. */ enum dc_status status; - if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) { + if (lt_settings->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) { repeater_cnt = dp_convert_to_count(link->dpcd_caps.lttpr_caps.phy_repeater_cnt); if (hop == repeater_cnt) { /* DPTX-to-DPIA */ @@ -916,7 +919,7 @@ static enum link_training_result dpia_training_end(struct dc_link *link, link->link_id.enum_id - ENUM_ID_1, hop, result, - link->lttpr_mode); + lt_settings->lttpr_mode); return result; } @@ -928,7 +931,9 @@ static enum link_training_result dpia_training_end(struct dc_link *link, * @param link DPIA link being trained. * @param hop The Hop in display path. DPRX = 0. */ -static void dpia_training_abort(struct dc_link *link, uint32_t hop) +static void dpia_training_abort(struct dc_link *link, + struct link_training_settings *lt_settings, + uint32_t hop) { uint8_t data = 0; uint32_t dpcd_tps_offset = DP_TRAINING_PATTERN_SET; @@ -936,7 +941,7 @@ static void dpia_training_abort(struct dc_link *link, uint32_t hop) DC_LOG_HW_LINK_TRAINING("%s\n DPIA(%d) aborting\n - LTTPR mode(%d)\n - HPD(%d)\n", __func__, link->link_id.enum_id - ENUM_ID_1, - link->lttpr_mode, + lt_settings->lttpr_mode, link->is_hpd_pending); /* Abandon clean-up if sink unplugged. */ @@ -964,12 +969,16 @@ enum link_training_result dc_link_dpia_perform_link_training( uint8_t repeater_cnt = 0; /* Number of hops/repeaters in display path. */ int8_t repeater_id; /* Current hop. */ + struct dc_link_settings link_settings = *link_setting; // non-const copy to pass in + + lt_settings.lttpr_mode = dp_decide_lttpr_mode(link, &link_settings); + /* Configure link as prescribed in link_setting and set LTTPR mode. */ result = dpia_configure_link(link, link_res, link_setting, <_settings); if (result != LINK_TRAINING_SUCCESS) return result; - if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) + if (lt_settings.lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) repeater_cnt = dp_convert_to_count(link->dpcd_caps.lttpr_caps.phy_repeater_cnt); /* Train each hop in turn starting with the one closest to DPTX. @@ -987,7 +996,7 @@ enum link_training_result dc_link_dpia_perform_link_training( break; /* Stop training hop. */ - result = dpia_training_end(link, repeater_id); + result = dpia_training_end(link, <_settings, repeater_id); if (result != LINK_TRAINING_SUCCESS) break; } @@ -1001,9 +1010,9 @@ enum link_training_result dc_link_dpia_perform_link_training( msleep(5); result = dp_check_link_loss_status(link, <_settings); } else if (result == LINK_TRAINING_ABORT) { - dpia_training_abort(link, repeater_id); + dpia_training_abort(link, <_settings, repeater_id); } else { - dpia_training_end(link, repeater_id); + dpia_training_end(link, <_settings, repeater_id); } return result; } |