Lines Matching +full:display +full:- +full:depth
1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
6 #define pr_fmt(fmt) "[drm-dp] %s: " fmt, __func__
56 if (link->revision < 0x11) in dp_aux_link_power_up()
83 if (link->revision < 0x11) in dp_aux_link_power_down()
107 if (drm_dp_dpcd_readb(link->aux, addr, &data) < 0) { in dp_link_get_period()
109 ret = -EINVAL; in dp_link_get_period()
113 /* Period - Bits 3:0 */ in dp_link_get_period()
117 ret = -EINVAL; in dp_link_get_period()
129 struct dp_link_test_audio *req = &link->dp_link.test_audio; in dp_link_parse_audio_channel_period()
132 if (ret == -EINVAL) in dp_link_parse_audio_channel_period()
135 req->test_audio_period_ch_1 = ret; in dp_link_parse_audio_channel_period()
136 drm_dbg_dp(link->drm_dev, "test_audio_period_ch_1 = 0x%x\n", ret); in dp_link_parse_audio_channel_period()
139 if (ret == -EINVAL) in dp_link_parse_audio_channel_period()
142 req->test_audio_period_ch_2 = ret; in dp_link_parse_audio_channel_period()
143 drm_dbg_dp(link->drm_dev, "test_audio_period_ch_2 = 0x%x\n", ret); in dp_link_parse_audio_channel_period()
147 if (ret == -EINVAL) in dp_link_parse_audio_channel_period()
150 req->test_audio_period_ch_3 = ret; in dp_link_parse_audio_channel_period()
151 drm_dbg_dp(link->drm_dev, "test_audio_period_ch_3 = 0x%x\n", ret); in dp_link_parse_audio_channel_period()
154 if (ret == -EINVAL) in dp_link_parse_audio_channel_period()
157 req->test_audio_period_ch_4 = ret; in dp_link_parse_audio_channel_period()
158 drm_dbg_dp(link->drm_dev, "test_audio_period_ch_4 = 0x%x\n", ret); in dp_link_parse_audio_channel_period()
161 if (ret == -EINVAL) in dp_link_parse_audio_channel_period()
164 req->test_audio_period_ch_5 = ret; in dp_link_parse_audio_channel_period()
165 drm_dbg_dp(link->drm_dev, "test_audio_period_ch_5 = 0x%x\n", ret); in dp_link_parse_audio_channel_period()
168 if (ret == -EINVAL) in dp_link_parse_audio_channel_period()
171 req->test_audio_period_ch_6 = ret; in dp_link_parse_audio_channel_period()
172 drm_dbg_dp(link->drm_dev, "test_audio_period_ch_6 = 0x%x\n", ret); in dp_link_parse_audio_channel_period()
175 if (ret == -EINVAL) in dp_link_parse_audio_channel_period()
178 req->test_audio_period_ch_7 = ret; in dp_link_parse_audio_channel_period()
179 drm_dbg_dp(link->drm_dev, "test_audio_period_ch_7 = 0x%x\n", ret); in dp_link_parse_audio_channel_period()
182 if (ret == -EINVAL) in dp_link_parse_audio_channel_period()
185 req->test_audio_period_ch_8 = ret; in dp_link_parse_audio_channel_period()
186 drm_dbg_dp(link->drm_dev, "test_audio_period_ch_8 = 0x%x\n", ret); in dp_link_parse_audio_channel_period()
198 rlen = drm_dp_dpcd_readb(link->aux, in dp_link_parse_audio_pattern_type()
205 /* Audio Pattern Type - Bits 7:0 */ in dp_link_parse_audio_pattern_type()
208 ret = -EINVAL; in dp_link_parse_audio_pattern_type()
212 link->dp_link.test_audio.test_audio_pattern_type = data; in dp_link_parse_audio_pattern_type()
213 drm_dbg_dp(link->drm_dev, "audio pattern type = 0x%x\n", data); in dp_link_parse_audio_pattern_type()
228 rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_AUDIO_MODE, &data); in dp_link_parse_audio_mode()
234 /* Sampling Rate - Bits 3:0 */ in dp_link_parse_audio_mode()
239 ret = -EINVAL; in dp_link_parse_audio_mode()
243 /* Channel Count - Bits 7:4 */ in dp_link_parse_audio_mode()
248 ret = -EINVAL; in dp_link_parse_audio_mode()
252 link->dp_link.test_audio.test_audio_sampling_rate = sampling_rate; in dp_link_parse_audio_mode()
253 link->dp_link.test_audio.test_audio_channel_count = channel_count; in dp_link_parse_audio_mode()
254 drm_dbg_dp(link->drm_dev, in dp_link_parse_audio_mode()
293 * dp_link_is_bit_depth_valid() - validates the bit depth requested
294 * @tbd: bit depth requested by the sink
296 * Returns true if the requested bit depth is supported.
318 return -EINVAL; in dp_link_parse_timing_params1()
321 rlen = drm_dp_dpcd_read(link->aux, addr, bp, len); in dp_link_parse_timing_params1()
324 return -EINVAL; in dp_link_parse_timing_params1()
340 return -EINVAL; in dp_link_parse_timing_params2()
343 rlen = drm_dp_dpcd_read(link->aux, addr, bp, len); in dp_link_parse_timing_params2()
346 return -EINVAL; in dp_link_parse_timing_params2()
362 rlen = drm_dp_dpcd_read(link->aux, addr, &bp, len); in dp_link_parse_timing_params3()
365 return -EINVAL; in dp_link_parse_timing_params3()
373 * dp_link_parse_video_pattern_params() - parses video pattern parameters from DPCD
374 * @link: Display Port Driver data
377 * bit depth requested by the sink and, and if the values parsed are valid.
385 rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_PATTERN, &bp); in dp_link_parse_video_pattern_params()
394 ret = -EINVAL; in dp_link_parse_video_pattern_params()
398 link->dp_link.test_video.test_video_pattern = bp; in dp_link_parse_video_pattern_params()
400 /* Read the requested color bit depth and dynamic range (Byte 0x232) */ in dp_link_parse_video_pattern_params()
401 rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_MISC0, &bp); in dp_link_parse_video_pattern_params()
403 DRM_ERROR("failed to read link bit depth. rlen=%zd\n", rlen); in dp_link_parse_video_pattern_params()
408 link->dp_link.test_video.test_dyn_range = in dp_link_parse_video_pattern_params()
411 /* Color bit depth */ in dp_link_parse_video_pattern_params()
414 DRM_ERROR("invalid link bit depth = 0x%x\n", bp); in dp_link_parse_video_pattern_params()
415 ret = -EINVAL; in dp_link_parse_video_pattern_params()
419 link->dp_link.test_video.test_bit_depth = bp; in dp_link_parse_video_pattern_params()
423 &link->dp_link.test_video.test_h_total); in dp_link_parse_video_pattern_params()
430 &link->dp_link.test_video.test_v_total); in dp_link_parse_video_pattern_params()
437 &link->dp_link.test_video.test_h_start); in dp_link_parse_video_pattern_params()
444 &link->dp_link.test_video.test_v_start); in dp_link_parse_video_pattern_params()
451 &link->dp_link.test_video.test_hsync_pol, in dp_link_parse_video_pattern_params()
452 &link->dp_link.test_video.test_hsync_width); in dp_link_parse_video_pattern_params()
459 &link->dp_link.test_video.test_vsync_pol, in dp_link_parse_video_pattern_params()
460 &link->dp_link.test_video.test_vsync_width); in dp_link_parse_video_pattern_params()
467 &link->dp_link.test_video.test_h_width); in dp_link_parse_video_pattern_params()
474 &link->dp_link.test_video.test_v_height); in dp_link_parse_video_pattern_params()
481 &link->dp_link.test_video.test_rr_d); in dp_link_parse_video_pattern_params()
482 link->dp_link.test_video.test_rr_d &= DP_TEST_REFRESH_DENOMINATOR; in dp_link_parse_video_pattern_params()
489 &link->dp_link.test_video.test_rr_n); in dp_link_parse_video_pattern_params()
495 drm_dbg_dp(link->drm_dev, in dp_link_parse_video_pattern_params()
498 "link bit depth = 0x%x\n" in dp_link_parse_video_pattern_params()
509 link->dp_link.test_video.test_video_pattern, in dp_link_parse_video_pattern_params()
510 link->dp_link.test_video.test_dyn_range, in dp_link_parse_video_pattern_params()
511 link->dp_link.test_video.test_bit_depth, in dp_link_parse_video_pattern_params()
512 link->dp_link.test_video.test_h_total, in dp_link_parse_video_pattern_params()
513 link->dp_link.test_video.test_v_total, in dp_link_parse_video_pattern_params()
514 link->dp_link.test_video.test_h_start, in dp_link_parse_video_pattern_params()
515 link->dp_link.test_video.test_v_start, in dp_link_parse_video_pattern_params()
516 link->dp_link.test_video.test_hsync_pol, in dp_link_parse_video_pattern_params()
517 link->dp_link.test_video.test_hsync_width, in dp_link_parse_video_pattern_params()
518 link->dp_link.test_video.test_vsync_pol, in dp_link_parse_video_pattern_params()
519 link->dp_link.test_video.test_vsync_width, in dp_link_parse_video_pattern_params()
520 link->dp_link.test_video.test_h_width, in dp_link_parse_video_pattern_params()
521 link->dp_link.test_video.test_v_height, in dp_link_parse_video_pattern_params()
522 link->dp_link.test_video.test_rr_d, in dp_link_parse_video_pattern_params()
523 link->dp_link.test_video.test_rr_n); in dp_link_parse_video_pattern_params()
529 * dp_link_parse_link_training_params() - parses link training parameters from
531 * @link: Display Port Driver data
541 rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_LINK_RATE, &bp); in dp_link_parse_link_training_params()
549 return -EINVAL; in dp_link_parse_link_training_params()
552 link->request.test_link_rate = bp; in dp_link_parse_link_training_params()
553 drm_dbg_dp(link->drm_dev, "link rate = 0x%x\n", in dp_link_parse_link_training_params()
554 link->request.test_link_rate); in dp_link_parse_link_training_params()
556 rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_LANE_COUNT, &bp); in dp_link_parse_link_training_params()
565 return -EINVAL; in dp_link_parse_link_training_params()
568 link->request.test_lane_count = bp; in dp_link_parse_link_training_params()
569 drm_dbg_dp(link->drm_dev, "lane count = 0x%x\n", in dp_link_parse_link_training_params()
570 link->request.test_lane_count); in dp_link_parse_link_training_params()
575 * dp_link_parse_phy_test_params() - parses the phy link parameters
576 * @link: Display Port Driver data
586 rlen = drm_dp_dpcd_readb(link->aux, DP_PHY_TEST_PATTERN, in dp_link_parse_phy_test_params()
593 link->dp_link.phy_params.phy_test_pattern_sel = data & 0x07; in dp_link_parse_phy_test_params()
595 drm_dbg_dp(link->drm_dev, "phy_test_pattern_sel = 0x%x\n", data); in dp_link_parse_phy_test_params()
607 return -EINVAL; in dp_link_parse_phy_test_params()
612 * dp_link_is_video_audio_test_requested() - checks for audio/video link request
628 * dp_link_parse_request() - parses link request parameters from sink
629 * @link: Display Port Driver data
644 rlen = drm_dp_dpcd_readb(link->aux, in dp_link_parse_request()
651 drm_dbg_dp(link->drm_dev, "device service irq vector = 0x%x\n", data); in dp_link_parse_request()
654 drm_dbg_dp(link->drm_dev, "no test requested\n"); in dp_link_parse_request()
662 rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_REQUEST, &data); in dp_link_parse_request()
669 drm_dbg_dp(link->drm_dev, "link 0x%x not supported\n", data); in dp_link_parse_request()
673 drm_dbg_dp(link->drm_dev, "Test:(0x%x) requested\n", data); in dp_link_parse_request()
674 link->request.test_requested = data; in dp_link_parse_request()
675 if (link->request.test_requested == DP_TEST_LINK_PHY_TEST_PATTERN) { in dp_link_parse_request()
684 if (link->request.test_requested == DP_TEST_LINK_TRAINING) { in dp_link_parse_request()
691 link->request.test_requested)) { in dp_link_parse_request()
704 link->dp_link.test_response = DP_TEST_NAK; in dp_link_parse_request()
706 if (link->request.test_requested != DP_TEST_LINK_EDID_READ) in dp_link_parse_request()
707 link->dp_link.test_response = DP_TEST_ACK; in dp_link_parse_request()
709 link->dp_link.test_response = in dp_link_parse_request()
720 link->prev_sink_count = link->dp_link.sink_count; in dp_link_parse_sink_status_field()
721 len = drm_dp_read_sink_count(link->aux); in dp_link_parse_sink_status_field()
726 link->dp_link.sink_count = len; in dp_link_parse_sink_status_field()
728 len = drm_dp_dpcd_read_link_status(link->aux, in dp_link_parse_sink_status_field()
729 link->link_status); in dp_link_parse_sink_status_field()
739 * dp_link_process_link_training_request() - processes new training requests
740 * @link: Display Port link data
747 * otherwise it will return -EINVAL.
751 if (link->request.test_requested != DP_TEST_LINK_TRAINING) in dp_link_process_link_training_request()
752 return -EINVAL; in dp_link_process_link_training_request()
754 drm_dbg_dp(link->drm_dev, in dp_link_process_link_training_request()
757 link->request.test_link_rate, in dp_link_process_link_training_request()
758 link->request.test_lane_count); in dp_link_process_link_training_request()
760 link->dp_link.link_params.num_lanes = link->request.test_lane_count; in dp_link_process_link_training_request()
761 link->dp_link.link_params.rate = in dp_link_process_link_training_request()
762 drm_dp_bw_code_to_link_rate(link->request.test_link_rate); in dp_link_process_link_training_request()
779 ret = drm_dp_dpcd_writeb(link->aux, DP_TEST_RESPONSE, in dp_link_send_test_response()
780 dp_link->test_response); in dp_link_send_test_response()
793 return -EINVAL; in dp_link_psm_config()
798 mutex_lock(&link->psm_mutex); in dp_link_psm_config()
800 ret = dp_aux_link_power_down(link->aux, link_info); in dp_link_psm_config()
802 ret = dp_aux_link_power_up(link->aux, link_info); in dp_link_psm_config()
808 dp_link->psm_enabled = enable; in dp_link_psm_config()
810 mutex_unlock(&link->psm_mutex); in dp_link_psm_config()
826 ret = drm_dp_dpcd_writeb(link->aux, DP_TEST_EDID_CHECKSUM, in dp_link_send_edid_checksum()
833 drm_dbg_dp(link->drm_dev, "vx: 0=%d, 1=%d, 2=%d, 3=%d\n", in dp_link_parse_vx_px()
834 drm_dp_get_adjust_request_voltage(link->link_status, 0), in dp_link_parse_vx_px()
835 drm_dp_get_adjust_request_voltage(link->link_status, 1), in dp_link_parse_vx_px()
836 drm_dp_get_adjust_request_voltage(link->link_status, 2), in dp_link_parse_vx_px()
837 drm_dp_get_adjust_request_voltage(link->link_status, 3)); in dp_link_parse_vx_px()
839 drm_dbg_dp(link->drm_dev, "px: 0=%d, 1=%d, 2=%d, 3=%d\n", in dp_link_parse_vx_px()
840 drm_dp_get_adjust_request_pre_emphasis(link->link_status, 0), in dp_link_parse_vx_px()
841 drm_dp_get_adjust_request_pre_emphasis(link->link_status, 1), in dp_link_parse_vx_px()
842 drm_dp_get_adjust_request_pre_emphasis(link->link_status, 2), in dp_link_parse_vx_px()
843 drm_dp_get_adjust_request_pre_emphasis(link->link_status, 3)); in dp_link_parse_vx_px()
846 * Update the voltage and pre-emphasis levels as per DPCD request in dp_link_parse_vx_px()
849 drm_dbg_dp(link->drm_dev, in dp_link_parse_vx_px()
851 link->dp_link.phy_params.v_level, in dp_link_parse_vx_px()
852 link->dp_link.phy_params.p_level); in dp_link_parse_vx_px()
853 link->dp_link.phy_params.v_level = in dp_link_parse_vx_px()
854 drm_dp_get_adjust_request_voltage(link->link_status, 0); in dp_link_parse_vx_px()
855 link->dp_link.phy_params.p_level = in dp_link_parse_vx_px()
856 drm_dp_get_adjust_request_pre_emphasis(link->link_status, 0); in dp_link_parse_vx_px()
858 link->dp_link.phy_params.p_level >>= DP_TRAIN_PRE_EMPHASIS_SHIFT; in dp_link_parse_vx_px()
860 drm_dbg_dp(link->drm_dev, in dp_link_parse_vx_px()
862 link->dp_link.phy_params.v_level, in dp_link_parse_vx_px()
863 link->dp_link.phy_params.p_level); in dp_link_parse_vx_px()
867 * dp_link_process_phy_test_pattern_request() - process new phy link requests
868 * @link: Display Port Driver data
872 * processed, otherwise it will return -EINVAL.
877 if (!(link->request.test_requested & DP_TEST_LINK_PHY_TEST_PATTERN)) { in dp_link_process_phy_test_pattern_request()
878 drm_dbg_dp(link->drm_dev, "no phy test\n"); in dp_link_process_phy_test_pattern_request()
879 return -EINVAL; in dp_link_process_phy_test_pattern_request()
882 if (!is_link_rate_valid(link->request.test_link_rate) || in dp_link_process_phy_test_pattern_request()
883 !is_lane_count_valid(link->request.test_lane_count)) { in dp_link_process_phy_test_pattern_request()
885 link->request.test_link_rate, in dp_link_process_phy_test_pattern_request()
886 link->request.test_lane_count); in dp_link_process_phy_test_pattern_request()
887 return -EINVAL; in dp_link_process_phy_test_pattern_request()
890 drm_dbg_dp(link->drm_dev, in dp_link_process_phy_test_pattern_request()
892 link->dp_link.link_params.rate, in dp_link_process_phy_test_pattern_request()
893 link->dp_link.link_params.num_lanes); in dp_link_process_phy_test_pattern_request()
895 drm_dbg_dp(link->drm_dev, in dp_link_process_phy_test_pattern_request()
897 link->request.test_link_rate, in dp_link_process_phy_test_pattern_request()
898 link->request.test_lane_count); in dp_link_process_phy_test_pattern_request()
900 link->dp_link.link_params.num_lanes = link->request.test_lane_count; in dp_link_process_phy_test_pattern_request()
901 link->dp_link.link_params.rate = in dp_link_process_phy_test_pattern_request()
902 drm_dp_bw_code_to_link_rate(link->request.test_link_rate); in dp_link_process_phy_test_pattern_request()
913 drm_dp_dpcd_read(link->aux, DP_PSR_ERROR_STATUS, &status, 1); in dp_link_read_psr_error_status()
931 drm_dp_dpcd_read(link->aux, DP_PSR_ESI, &status, 1); in dp_link_psr_capability_changed()
934 drm_dbg_dp(link->drm_dev, "PSR Capability Change\n"); in dp_link_psr_capability_changed()
943 return link_status[r - DP_LANE0_1_STATUS]; in get_link_status()
947 * dp_link_process_link_status_update() - processes link status updates
948 * @link: Display Port link module data
955 * otherwise it will return -EINVAL.
959 bool channel_eq_done = drm_dp_channel_eq_ok(link->link_status, in dp_link_process_link_status_update()
960 link->dp_link.link_params.num_lanes); in dp_link_process_link_status_update()
962 bool clock_recovery_done = drm_dp_clock_recovery_ok(link->link_status, in dp_link_process_link_status_update()
963 link->dp_link.link_params.num_lanes); in dp_link_process_link_status_update()
965 drm_dbg_dp(link->drm_dev, in dp_link_process_link_status_update()
970 return -EINVAL; in dp_link_process_link_status_update()
976 * dp_link_process_ds_port_status_change() - process port status changes
977 * @link: Display Port Driver data
984 * processed, otherwise it will return -EINVAL.
988 if (get_link_status(link->link_status, DP_LANE_ALIGN_STATUS_UPDATED) & in dp_link_process_ds_port_status_change()
992 if (link->prev_sink_count == link->dp_link.sink_count) in dp_link_process_ds_port_status_change()
993 return -EINVAL; in dp_link_process_ds_port_status_change()
997 link->prev_sink_count = link->dp_link.sink_count; in dp_link_process_ds_port_status_change()
1004 return (link->request.test_requested & DP_TEST_LINK_VIDEO_PATTERN) in dp_link_is_video_pattern_requested()
1005 && !(link->request.test_requested & in dp_link_is_video_pattern_requested()
1011 return (link->request.test_requested & DP_TEST_LINK_AUDIO_PATTERN); in dp_link_is_audio_pattern_requested()
1016 link->request = (const struct dp_link_request){ 0 }; in dp_link_reset_data()
1017 link->dp_link.test_video = (const struct dp_link_test_video){ 0 }; in dp_link_reset_data()
1018 link->dp_link.test_video.test_bit_depth = DP_TEST_BIT_DEPTH_UNKNOWN; in dp_link_reset_data()
1019 link->dp_link.test_audio = (const struct dp_link_test_audio){ 0 }; in dp_link_reset_data()
1020 link->dp_link.phy_params.phy_test_pattern_sel = 0; in dp_link_reset_data()
1021 link->dp_link.sink_request = 0; in dp_link_reset_data()
1022 link->dp_link.test_response = 0; in dp_link_reset_data()
1026 * dp_link_process_request() - handle HPD IRQ transition to HIGH
1040 return -EINVAL; in dp_link_process_request()
1051 if (link->request.test_requested == DP_TEST_LINK_EDID_READ) { in dp_link_process_request()
1052 dp_link->sink_request |= DP_TEST_LINK_EDID_READ; in dp_link_process_request()
1054 dp_link->sink_request |= DS_PORT_STATUS_CHANGED; in dp_link_process_request()
1056 dp_link->sink_request |= DP_TEST_LINK_TRAINING; in dp_link_process_request()
1058 dp_link->sink_request |= DP_TEST_LINK_PHY_TEST_PATTERN; in dp_link_process_request()
1062 drm_dbg_dp(link->drm_dev, "PSR Capability changed\n"); in dp_link_process_request()
1066 dp_link->sink_request |= DP_LINK_STATUS_UPDATED; in dp_link_process_request()
1070 dp_link->sink_request |= DP_TEST_LINK_VIDEO_PATTERN; in dp_link_process_request()
1073 dp_link->sink_request |= DP_TEST_LINK_AUDIO_PATTERN; in dp_link_process_request()
1074 ret = -EINVAL; in dp_link_process_request()
1079 drm_dbg_dp(link->drm_dev, "sink request=%#x\n", in dp_link_process_request()
1080 dp_link->sink_request); in dp_link_process_request()
1091 return -EINVAL; in dp_link_get_colorimetry_config()
1101 if (link->dp_link.test_video.test_dyn_range & in dp_link_get_colorimetry_config()
1117 return -EINVAL; in dp_link_adjust_levels()
1123 for (i = 0; i < dp_link->link_params.num_lanes; i++) { in dp_link_adjust_levels()
1127 drm_dbg_dp(link->drm_dev, in dp_link_adjust_levels()
1136 dp_link->phy_params.v_level = v_max >> DP_TRAIN_VOLTAGE_SWING_SHIFT; in dp_link_adjust_levels()
1137 dp_link->phy_params.p_level = p_max >> DP_TRAIN_PRE_EMPHASIS_SHIFT; in dp_link_adjust_levels()
1140 * Adjust the voltage swing and pre-emphasis level combination to within in dp_link_adjust_levels()
1143 if (dp_link->phy_params.v_level > DP_TRAIN_VOLTAGE_SWING_MAX) { in dp_link_adjust_levels()
1144 drm_dbg_dp(link->drm_dev, in dp_link_adjust_levels()
1146 dp_link->phy_params.v_level, in dp_link_adjust_levels()
1148 dp_link->phy_params.v_level = DP_TRAIN_VOLTAGE_SWING_MAX; in dp_link_adjust_levels()
1151 if (dp_link->phy_params.p_level > DP_TRAIN_PRE_EMPHASIS_MAX) { in dp_link_adjust_levels()
1152 drm_dbg_dp(link->drm_dev, in dp_link_adjust_levels()
1154 dp_link->phy_params.p_level, in dp_link_adjust_levels()
1156 dp_link->phy_params.p_level = DP_TRAIN_PRE_EMPHASIS_MAX; in dp_link_adjust_levels()
1159 if ((dp_link->phy_params.p_level > DP_TRAIN_PRE_EMPHASIS_LVL_1) in dp_link_adjust_levels()
1160 && (dp_link->phy_params.v_level == in dp_link_adjust_levels()
1162 drm_dbg_dp(link->drm_dev, in dp_link_adjust_levels()
1164 dp_link->phy_params.p_level, in dp_link_adjust_levels()
1166 dp_link->phy_params.p_level = DP_TRAIN_PRE_EMPHASIS_LVL_1; in dp_link_adjust_levels()
1169 drm_dbg_dp(link->drm_dev, "adjusted: v_level=%d, p_level=%d\n", in dp_link_adjust_levels()
1170 dp_link->phy_params.v_level, dp_link->phy_params.p_level); in dp_link_adjust_levels()
1177 dp_link->phy_params.v_level = 0; in dp_link_reset_phy_params_vx_px()
1178 dp_link->phy_params.p_level = 0; in dp_link_reset_phy_params_vx_px()
1190 * 1. Test bit depth is bit depth per color component in dp_link_get_test_bits_depth()
1204 drm_dbg_dp(link->drm_dev, "bpp=%d not supported, use bpc=8\n", in dp_link_get_test_bits_depth()
1222 return ERR_PTR(-EINVAL); in dp_link_get()
1227 return ERR_PTR(-ENOMEM); in dp_link_get()
1229 link->dev = dev; in dp_link_get()
1230 link->aux = aux; in dp_link_get()
1232 mutex_init(&link->psm_mutex); in dp_link_get()
1233 dp_link = &link->dp_link; in dp_link_get()