49 					struct dp_link_info *link)  in dp_aux_link_power_up()  argument
54 	if (link->revision < 0x11)  in dp_aux_link_power_up()
74 					struct dp_link_info *link)  in dp_aux_link_power_down()  argument
79 	if (link->revision < 0x11)  in dp_aux_link_power_down()
96 static int dp_link_get_period(struct dp_link_private *link, int const addr)  in dp_link_get_period()  argument
103 	if (drm_dp_dpcd_readb(link->aux, addr, &data) < 0) {  in dp_link_get_period()
122 static int dp_link_parse_audio_channel_period(struct dp_link_private *link)  in dp_link_parse_audio_channel_period()  argument
125 	struct dp_link_test_audio *req = &link->dp_link.test_audio;  in dp_link_parse_audio_channel_period()
127 	ret = dp_link_get_period(link, DP_TEST_AUDIO_PERIOD_CH1);  in dp_link_parse_audio_channel_period()
132 	drm_dbg_dp(link->drm_dev, "test_audio_period_ch_1 = 0x%x\n", ret);  in dp_link_parse_audio_channel_period()
134 	ret = dp_link_get_period(link, DP_TEST_AUDIO_PERIOD_CH2);  in dp_link_parse_audio_channel_period()
139 	drm_dbg_dp(link->drm_dev, "test_audio_period_ch_2 = 0x%x\n", ret);  in dp_link_parse_audio_channel_period()
142 	ret = dp_link_get_period(link, DP_TEST_AUDIO_PERIOD_CH3);  in dp_link_parse_audio_channel_period()
147 	drm_dbg_dp(link->drm_dev, "test_audio_period_ch_3 = 0x%x\n", ret);  in dp_link_parse_audio_channel_period()
149 	ret = dp_link_get_period(link, DP_TEST_AUDIO_PERIOD_CH4);  in dp_link_parse_audio_channel_period()
154 	drm_dbg_dp(link->drm_dev, "test_audio_period_ch_4 = 0x%x\n", ret);  in dp_link_parse_audio_channel_period()
156 	ret = dp_link_get_period(link, DP_TEST_AUDIO_PERIOD_CH5);  in dp_link_parse_audio_channel_period()
161 	drm_dbg_dp(link->drm_dev, "test_audio_period_ch_5 = 0x%x\n", ret);  in dp_link_parse_audio_channel_period()
163 	ret = dp_link_get_period(link, DP_TEST_AUDIO_PERIOD_CH6);  in dp_link_parse_audio_channel_period()
168 	drm_dbg_dp(link->drm_dev, "test_audio_period_ch_6 = 0x%x\n", ret);  in dp_link_parse_audio_channel_period()
170 	ret = dp_link_get_period(link, DP_TEST_AUDIO_PERIOD_CH7);  in dp_link_parse_audio_channel_period()
175 	drm_dbg_dp(link->drm_dev, "test_audio_period_ch_7 = 0x%x\n", ret);  in dp_link_parse_audio_channel_period()
177 	ret = dp_link_get_period(link, DP_TEST_AUDIO_PERIOD_CH8);  in dp_link_parse_audio_channel_period()
182 	drm_dbg_dp(link->drm_dev, "test_audio_period_ch_8 = 0x%x\n", ret);  in dp_link_parse_audio_channel_period()
187 static int dp_link_parse_audio_pattern_type(struct dp_link_private *link)  in dp_link_parse_audio_pattern_type()  argument
194 	rlen = drm_dp_dpcd_readb(link->aux,  in dp_link_parse_audio_pattern_type()
197 		DRM_ERROR("failed to read link audio mode. rlen=%zd\n", rlen);  in dp_link_parse_audio_pattern_type()
208 	link->dp_link.test_audio.test_audio_pattern_type = data;  in dp_link_parse_audio_pattern_type()
209 	drm_dbg_dp(link->drm_dev, "audio pattern type = 0x%x\n", data);  in dp_link_parse_audio_pattern_type()
214 static int dp_link_parse_audio_mode(struct dp_link_private *link)  in dp_link_parse_audio_mode()  argument
224 	rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_AUDIO_MODE, &data);  in dp_link_parse_audio_mode()
226 		DRM_ERROR("failed to read link audio mode. rlen=%zd\n", rlen);  in dp_link_parse_audio_mode()
248 	link->dp_link.test_audio.test_audio_sampling_rate = sampling_rate;  in dp_link_parse_audio_mode()
249 	link->dp_link.test_audio.test_audio_channel_count = channel_count;  in dp_link_parse_audio_mode()
250 	drm_dbg_dp(link->drm_dev,  in dp_link_parse_audio_mode()
257 static int dp_link_parse_audio_pattern_params(struct dp_link_private *link)  in dp_link_parse_audio_pattern_params()  argument
261 	ret = dp_link_parse_audio_mode(link);  in dp_link_parse_audio_pattern_params()
265 	ret = dp_link_parse_audio_pattern_type(link);  in dp_link_parse_audio_pattern_params()
269 	ret = dp_link_parse_audio_channel_period(link);  in dp_link_parse_audio_pattern_params()
307 static int dp_link_parse_timing_params1(struct dp_link_private *link,  in dp_link_parse_timing_params1()  argument
316 	/* Read the requested video link pattern (Byte 0x221). */  in dp_link_parse_timing_params1()
317 	rlen = drm_dp_dpcd_read(link->aux, addr, bp, len);  in dp_link_parse_timing_params1()
328 static int dp_link_parse_timing_params2(struct dp_link_private *link,  in dp_link_parse_timing_params2()  argument
338 	/* Read the requested video link pattern (Byte 0x221). */  in dp_link_parse_timing_params2()
339 	rlen = drm_dp_dpcd_read(link->aux, addr, bp, len);  in dp_link_parse_timing_params2()
351 static int dp_link_parse_timing_params3(struct dp_link_private *link,  in dp_link_parse_timing_params3()  argument
358 	rlen = drm_dp_dpcd_read(link->aux, addr, &bp, len);  in dp_link_parse_timing_params3()
370  * @link: Display Port Driver data
372  * Returns 0 if it successfully parses the video link pattern and the link
375 static int dp_link_parse_video_pattern_params(struct dp_link_private *link)  in dp_link_parse_video_pattern_params()  argument
381 	rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_PATTERN, &bp);  in dp_link_parse_video_pattern_params()
383 		DRM_ERROR("failed to read link video pattern. rlen=%zd\n",  in dp_link_parse_video_pattern_params()
389 		DRM_ERROR("invalid link video pattern = 0x%x\n", bp);  in dp_link_parse_video_pattern_params()
394 	link->dp_link.test_video.test_video_pattern = bp;  in dp_link_parse_video_pattern_params()
397 	rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_MISC0, &bp);  in dp_link_parse_video_pattern_params()
399 		DRM_ERROR("failed to read link bit depth. rlen=%zd\n", rlen);  in dp_link_parse_video_pattern_params()
404 	link->dp_link.test_video.test_dyn_range =  in dp_link_parse_video_pattern_params()
410 		DRM_ERROR("invalid link bit depth = 0x%x\n", bp);  in dp_link_parse_video_pattern_params()
415 	link->dp_link.test_video.test_bit_depth = bp;  in dp_link_parse_video_pattern_params()
418 	ret = dp_link_parse_timing_params1(link, DP_TEST_H_TOTAL_HI, 2,  in dp_link_parse_video_pattern_params()
419 			&link->dp_link.test_video.test_h_total);  in dp_link_parse_video_pattern_params()
425 	ret = dp_link_parse_timing_params1(link, DP_TEST_V_TOTAL_HI, 2,  in dp_link_parse_video_pattern_params()
426 			&link->dp_link.test_video.test_v_total);  in dp_link_parse_video_pattern_params()
432 	ret = dp_link_parse_timing_params1(link, DP_TEST_H_START_HI, 2,  in dp_link_parse_video_pattern_params()
433 			&link->dp_link.test_video.test_h_start);  in dp_link_parse_video_pattern_params()
439 	ret = dp_link_parse_timing_params1(link, DP_TEST_V_START_HI, 2,  in dp_link_parse_video_pattern_params()
440 			&link->dp_link.test_video.test_v_start);  in dp_link_parse_video_pattern_params()
446 	ret = dp_link_parse_timing_params2(link, DP_TEST_HSYNC_HI, 2,  in dp_link_parse_video_pattern_params()
447 			&link->dp_link.test_video.test_hsync_pol,  in dp_link_parse_video_pattern_params()
448 			&link->dp_link.test_video.test_hsync_width);  in dp_link_parse_video_pattern_params()
454 	ret = dp_link_parse_timing_params2(link, DP_TEST_VSYNC_HI, 2,  in dp_link_parse_video_pattern_params()
455 			&link->dp_link.test_video.test_vsync_pol,  in dp_link_parse_video_pattern_params()
456 			&link->dp_link.test_video.test_vsync_width);  in dp_link_parse_video_pattern_params()
462 	ret = dp_link_parse_timing_params1(link, DP_TEST_H_WIDTH_HI, 2,  in dp_link_parse_video_pattern_params()
463 			&link->dp_link.test_video.test_h_width);  in dp_link_parse_video_pattern_params()
469 	ret = dp_link_parse_timing_params1(link, DP_TEST_V_HEIGHT_HI, 2,  in dp_link_parse_video_pattern_params()
470 			&link->dp_link.test_video.test_v_height);  in dp_link_parse_video_pattern_params()
476 	ret = dp_link_parse_timing_params3(link, DP_TEST_MISC1,  in dp_link_parse_video_pattern_params()
477 		&link->dp_link.test_video.test_rr_d);  in dp_link_parse_video_pattern_params()
478 	link->dp_link.test_video.test_rr_d &= DP_TEST_REFRESH_DENOMINATOR;  in dp_link_parse_video_pattern_params()
484 	ret = dp_link_parse_timing_params3(link, DP_TEST_REFRESH_RATE_NUMERATOR,  in dp_link_parse_video_pattern_params()
485 		&link->dp_link.test_video.test_rr_n);  in dp_link_parse_video_pattern_params()
491 	drm_dbg_dp(link->drm_dev,  in dp_link_parse_video_pattern_params()
492 		"link video pattern = 0x%x\n"  in dp_link_parse_video_pattern_params()
493 		"link dynamic range = 0x%x\n"  in dp_link_parse_video_pattern_params()
494 		"link bit depth = 0x%x\n"  in dp_link_parse_video_pattern_params()
505 		link->dp_link.test_video.test_video_pattern,  in dp_link_parse_video_pattern_params()
506 		link->dp_link.test_video.test_dyn_range,  in dp_link_parse_video_pattern_params()
507 		link->dp_link.test_video.test_bit_depth,  in dp_link_parse_video_pattern_params()
508 		link->dp_link.test_video.test_h_total,  in dp_link_parse_video_pattern_params()
509 		link->dp_link.test_video.test_v_total,  in dp_link_parse_video_pattern_params()
510 		link->dp_link.test_video.test_h_start,  in dp_link_parse_video_pattern_params()
511 		link->dp_link.test_video.test_v_start,  in dp_link_parse_video_pattern_params()
512 		link->dp_link.test_video.test_hsync_pol,  in dp_link_parse_video_pattern_params()
513 		link->dp_link.test_video.test_hsync_width,  in dp_link_parse_video_pattern_params()
514 		link->dp_link.test_video.test_vsync_pol,  in dp_link_parse_video_pattern_params()
515 		link->dp_link.test_video.test_vsync_width,  in dp_link_parse_video_pattern_params()
516 		link->dp_link.test_video.test_h_width,  in dp_link_parse_video_pattern_params()
517 		link->dp_link.test_video.test_v_height,  in dp_link_parse_video_pattern_params()
518 		link->dp_link.test_video.test_rr_d,  in dp_link_parse_video_pattern_params()
519 		link->dp_link.test_video.test_rr_n);  in dp_link_parse_video_pattern_params()
525  * dp_link_parse_link_training_params() - parses link training parameters from
527  * @link: Display Port Driver data
529  * Returns 0 if it successfully parses the link rate (Byte 0x219) and lane
532 static int dp_link_parse_link_training_params(struct dp_link_private *link)  in dp_link_parse_link_training_params()  argument
537 	rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_LINK_RATE,	&bp);  in dp_link_parse_link_training_params()
539 		DRM_ERROR("failed to read link rate. rlen=%zd\n", rlen);  in dp_link_parse_link_training_params()
544 		DRM_ERROR("invalid link rate = 0x%x\n", bp);  in dp_link_parse_link_training_params()
548 	link->request.test_link_rate = bp;  in dp_link_parse_link_training_params()
549 	drm_dbg_dp(link->drm_dev, "link rate = 0x%x\n",  in dp_link_parse_link_training_params()
550 				link->request.test_link_rate);  in dp_link_parse_link_training_params()
552 	rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_LANE_COUNT, &bp);  in dp_link_parse_link_training_params()
564 	link->request.test_lane_count = bp;  in dp_link_parse_link_training_params()
565 	drm_dbg_dp(link->drm_dev, "lane count = 0x%x\n",  in dp_link_parse_link_training_params()
566 				link->request.test_lane_count);  in dp_link_parse_link_training_params()
571  * dp_link_parse_phy_test_params() - parses the phy link parameters
572  * @link: Display Port Driver data
574  * Parses the DPCD (Byte 0x248) for the DP PHY link pattern that is being
577 static int dp_link_parse_phy_test_params(struct dp_link_private *link)  in dp_link_parse_phy_test_params()  argument
582 	rlen = drm_dp_dpcd_readb(link->aux, DP_PHY_TEST_PATTERN,  in dp_link_parse_phy_test_params()
585 		DRM_ERROR("failed to read phy link pattern. rlen=%zd\n", rlen);  in dp_link_parse_phy_test_params()
589 	link->dp_link.phy_params.phy_test_pattern_sel = data & 0x07;  in dp_link_parse_phy_test_params()
591 	drm_dbg_dp(link->drm_dev, "phy_test_pattern_sel = 0x%x\n", data);  in dp_link_parse_phy_test_params()
608  * dp_link_is_video_audio_test_requested() - checks for audio/video link request
609  * @link: link requested by the sink
611  * Returns true if the requested link is a permitted audio/video link.
613 static bool dp_link_is_video_audio_test_requested(u32 link)  in dp_link_is_video_audio_test_requested()  argument
619 	return ((link & video_audio_test) &&  in dp_link_is_video_audio_test_requested()
620 		!(link & ~video_audio_test));  in dp_link_is_video_audio_test_requested()
624  * dp_link_parse_request() - parses link request parameters from sink
625  * @link: Display Port Driver data
627  * Parses the DPCD to check if an automated link is requested (Byte 0x201),
628  * and what type of link automation is being requested (Byte 0x218).
630 static int dp_link_parse_request(struct dp_link_private *link)  in dp_link_parse_request()  argument
638 	 * whether an automated link has been requested by the sink.  in dp_link_parse_request()
640 	rlen = drm_dp_dpcd_readb(link->aux,  in dp_link_parse_request()
647 	drm_dbg_dp(link->drm_dev, "device service irq vector = 0x%x\n", data);  in dp_link_parse_request()
650 		drm_dbg_dp(link->drm_dev, "no test requested\n");  in dp_link_parse_request()
655 	 * Read the link request byte (Byte 0x218) to determine what type  in dp_link_parse_request()
656 	 * of automated link has been requested by the sink.  in dp_link_parse_request()
658 	rlen = drm_dp_dpcd_readb(link->aux, DP_TEST_REQUEST, &data);  in dp_link_parse_request()
665 		drm_dbg_dp(link->drm_dev, "link 0x%x not supported\n", data);  in dp_link_parse_request()
669 	drm_dbg_dp(link->drm_dev, "Test:(0x%x) requested\n", data);  in dp_link_parse_request()
670 	link->request.test_requested = data;  in dp_link_parse_request()
671 	if (link->request.test_requested == DP_TEST_LINK_PHY_TEST_PATTERN) {  in dp_link_parse_request()
672 		ret = dp_link_parse_phy_test_params(link);  in dp_link_parse_request()
675 		ret = dp_link_parse_link_training_params(link);  in dp_link_parse_request()
680 	if (link->request.test_requested == DP_TEST_LINK_TRAINING) {  in dp_link_parse_request()
681 		ret = dp_link_parse_link_training_params(link);  in dp_link_parse_request()
687 			link->request.test_requested)) {  in dp_link_parse_request()
688 		ret = dp_link_parse_video_pattern_params(link);  in dp_link_parse_request()
692 		ret = dp_link_parse_audio_pattern_params(link);  in dp_link_parse_request()
696 	 * Send a DP_TEST_ACK if all link parameters are valid, otherwise send  in dp_link_parse_request()
700 		link->dp_link.test_response = DP_TEST_NAK;  in dp_link_parse_request()
702 		if (link->request.test_requested != DP_TEST_LINK_EDID_READ)  in dp_link_parse_request()
703 			link->dp_link.test_response = DP_TEST_ACK;  in dp_link_parse_request()
705 			link->dp_link.test_response =  in dp_link_parse_request()
714  * @dp_link: pointer to link module data
725 	struct dp_link_private *link = container_of(dp_link,  in dp_link_parse_sink_count()  local
728 	rlen = drm_dp_dpcd_readb(link->aux, DP_SINK_COUNT,  in dp_link_parse_sink_count()
729 				 &link->dp_link.sink_count);  in dp_link_parse_sink_count()
735 	cp_ready = link->dp_link.sink_count & DP_SINK_CP_READY;  in dp_link_parse_sink_count()
737 	link->dp_link.sink_count =  in dp_link_parse_sink_count()
738 		DP_GET_SINK_COUNT(link->dp_link.sink_count);  in dp_link_parse_sink_count()
740 	drm_dbg_dp(link->drm_dev, "sink_count = 0x%x, cp_ready = 0x%x\n",  in dp_link_parse_sink_count()
741 				link->dp_link.sink_count, cp_ready);  in dp_link_parse_sink_count()
745 static int dp_link_parse_sink_status_field(struct dp_link_private *link)  in dp_link_parse_sink_status_field()  argument
749 	link->prev_sink_count = link->dp_link.sink_count;  in dp_link_parse_sink_status_field()
750 	len = dp_link_parse_sink_count(&link->dp_link);  in dp_link_parse_sink_status_field()
756 	len = drm_dp_dpcd_read_link_status(link->aux,  in dp_link_parse_sink_status_field()
757 		link->link_status);  in dp_link_parse_sink_status_field()
759 		DRM_ERROR("DP link status read failed\n");  in dp_link_parse_sink_status_field()
763 	return dp_link_parse_request(link);  in dp_link_parse_sink_status_field()
768  * @link: Display Port link data
770  * This function will handle new link training requests that are initiated by
771  * the sink. In particular, it will update the requested lane count and link
772  * rate, and then trigger the link retraining procedure.
774  * The function will return 0 if a link training request has been processed,
777 static int dp_link_process_link_training_request(struct dp_link_private *link)  in dp_link_process_link_training_request()  argument
779 	if (link->request.test_requested != DP_TEST_LINK_TRAINING)  in dp_link_process_link_training_request()
782 	drm_dbg_dp(link->drm_dev,  in dp_link_process_link_training_request()
783 			"Test:0x%x link rate = 0x%x, lane count = 0x%x\n",  in dp_link_process_link_training_request()
785 			link->request.test_link_rate,  in dp_link_process_link_training_request()
786 			link->request.test_lane_count);  in dp_link_process_link_training_request()
788 	link->dp_link.link_params.num_lanes = link->request.test_lane_count;  in dp_link_process_link_training_request()
789 	link->dp_link.link_params.rate =  in dp_link_process_link_training_request()
790 		drm_dp_bw_code_to_link_rate(link->request.test_link_rate);  in dp_link_process_link_training_request()
797 	struct dp_link_private *link = NULL;  in dp_link_send_test_response()  local
805 	link = container_of(dp_link, struct dp_link_private, dp_link);  in dp_link_send_test_response()
807 	ret = drm_dp_dpcd_writeb(link->aux, DP_TEST_RESPONSE,  in dp_link_send_test_response()
816 	struct dp_link_private *link = NULL;  in dp_link_psm_config()  local
824 	link = container_of(dp_link, struct dp_link_private, dp_link);  in dp_link_psm_config()
826 	mutex_lock(&link->psm_mutex);  in dp_link_psm_config()
828 		ret = dp_aux_link_power_down(link->aux, link_info);  in dp_link_psm_config()
830 		ret = dp_aux_link_power_up(link->aux, link_info);  in dp_link_psm_config()
838 	mutex_unlock(&link->psm_mutex);  in dp_link_psm_config()
844 	struct dp_link_private *link = NULL;  in dp_link_send_edid_checksum()  local
852 	link = container_of(dp_link, struct dp_link_private, dp_link);  in dp_link_send_edid_checksum()
854 	ret = drm_dp_dpcd_writeb(link->aux, DP_TEST_EDID_CHECKSUM,  in dp_link_send_edid_checksum()
859 static void dp_link_parse_vx_px(struct dp_link_private *link)  in dp_link_parse_vx_px()  argument
861 	drm_dbg_dp(link->drm_dev, "vx: 0=%d, 1=%d, 2=%d, 3=%d\n",  in dp_link_parse_vx_px()
862 		drm_dp_get_adjust_request_voltage(link->link_status, 0),  in dp_link_parse_vx_px()
863 		drm_dp_get_adjust_request_voltage(link->link_status, 1),  in dp_link_parse_vx_px()
864 		drm_dp_get_adjust_request_voltage(link->link_status, 2),  in dp_link_parse_vx_px()
865 		drm_dp_get_adjust_request_voltage(link->link_status, 3));  in dp_link_parse_vx_px()
867 	drm_dbg_dp(link->drm_dev, "px: 0=%d, 1=%d, 2=%d, 3=%d\n",  in dp_link_parse_vx_px()
868 		drm_dp_get_adjust_request_pre_emphasis(link->link_status, 0),  in dp_link_parse_vx_px()
869 		drm_dp_get_adjust_request_pre_emphasis(link->link_status, 1),  in dp_link_parse_vx_px()
870 		drm_dp_get_adjust_request_pre_emphasis(link->link_status, 2),  in dp_link_parse_vx_px()
871 		drm_dp_get_adjust_request_pre_emphasis(link->link_status, 3));  in dp_link_parse_vx_px()
877 	drm_dbg_dp(link->drm_dev,  in dp_link_parse_vx_px()
879 			link->dp_link.phy_params.v_level,  in dp_link_parse_vx_px()
880 			link->dp_link.phy_params.p_level);  in dp_link_parse_vx_px()
881 	link->dp_link.phy_params.v_level =  in dp_link_parse_vx_px()
882 		drm_dp_get_adjust_request_voltage(link->link_status, 0);  in dp_link_parse_vx_px()
883 	link->dp_link.phy_params.p_level =  in dp_link_parse_vx_px()
884 		drm_dp_get_adjust_request_pre_emphasis(link->link_status, 0);  in dp_link_parse_vx_px()
886 	link->dp_link.phy_params.p_level >>= DP_TRAIN_PRE_EMPHASIS_SHIFT;  in dp_link_parse_vx_px()
888 	drm_dbg_dp(link->drm_dev,  in dp_link_parse_vx_px()
890 			link->dp_link.phy_params.v_level,  in dp_link_parse_vx_px()
891 			link->dp_link.phy_params.p_level);  in dp_link_parse_vx_px()
895  * dp_link_process_phy_test_pattern_request() - process new phy link requests
896  * @link: Display Port Driver data
898  * This function will handle new phy link pattern requests that are initiated
899  * by the sink. The function will return 0 if a phy link pattern has been
903 		struct dp_link_private *link)  in dp_link_process_phy_test_pattern_request()  argument
905 	if (!(link->request.test_requested & DP_TEST_LINK_PHY_TEST_PATTERN)) {  in dp_link_process_phy_test_pattern_request()
906 		drm_dbg_dp(link->drm_dev, "no phy test\n");  in dp_link_process_phy_test_pattern_request()
910 	if (!is_link_rate_valid(link->request.test_link_rate) ||  in dp_link_process_phy_test_pattern_request()
911 		!is_lane_count_valid(link->request.test_lane_count)) {  in dp_link_process_phy_test_pattern_request()
912 		DRM_ERROR("Invalid: link rate = 0x%x,lane count = 0x%x\n",  in dp_link_process_phy_test_pattern_request()
913 				link->request.test_link_rate,  in dp_link_process_phy_test_pattern_request()
914 				link->request.test_lane_count);  in dp_link_process_phy_test_pattern_request()
918 	drm_dbg_dp(link->drm_dev,  in dp_link_process_phy_test_pattern_request()
920 			link->dp_link.link_params.rate,  in dp_link_process_phy_test_pattern_request()
921 			link->dp_link.link_params.num_lanes);  in dp_link_process_phy_test_pattern_request()
923 	drm_dbg_dp(link->drm_dev,  in dp_link_process_phy_test_pattern_request()
925 			link->request.test_link_rate,  in dp_link_process_phy_test_pattern_request()
926 			link->request.test_lane_count);  in dp_link_process_phy_test_pattern_request()
928 	link->dp_link.link_params.num_lanes = link->request.test_lane_count;  in dp_link_process_phy_test_pattern_request()
929 	link->dp_link.link_params.rate =  in dp_link_process_phy_test_pattern_request()
930 		drm_dp_bw_code_to_link_rate(link->request.test_link_rate);  in dp_link_process_phy_test_pattern_request()
932 	dp_link_parse_vx_px(link);  in dp_link_process_phy_test_pattern_request()
943  * dp_link_process_link_status_update() - processes link status updates
944  * @link: Display Port link module data
946  * This function will check for changes in the link status, e.g. clock
947  * recovery done on all lanes, and trigger link training if there is a
948  * failure/error on the link.
950  * The function will return 0 if the a link status update has been processed,
953 static int dp_link_process_link_status_update(struct dp_link_private *link)  in dp_link_process_link_status_update()  argument
955 	bool channel_eq_done = drm_dp_channel_eq_ok(link->link_status,  in dp_link_process_link_status_update()
956 			link->dp_link.link_params.num_lanes);  in dp_link_process_link_status_update()
958 	bool clock_recovery_done = drm_dp_clock_recovery_ok(link->link_status,  in dp_link_process_link_status_update()
959 			link->dp_link.link_params.num_lanes);  in dp_link_process_link_status_update()
961 	drm_dbg_dp(link->drm_dev,  in dp_link_process_link_status_update()
973  * @link: Display Port Driver data
982 static int dp_link_process_ds_port_status_change(struct dp_link_private *link)  in dp_link_process_ds_port_status_change()  argument
984 	if (get_link_status(link->link_status, DP_LANE_ALIGN_STATUS_UPDATED) &  in dp_link_process_ds_port_status_change()
988 	if (link->prev_sink_count == link->dp_link.sink_count)  in dp_link_process_ds_port_status_change()
993 	link->prev_sink_count = link->dp_link.sink_count;  in dp_link_process_ds_port_status_change()
998 static bool dp_link_is_video_pattern_requested(struct dp_link_private *link)  in dp_link_is_video_pattern_requested()  argument
1000 	return (link->request.test_requested & DP_TEST_LINK_VIDEO_PATTERN)  in dp_link_is_video_pattern_requested()
1001 		&& !(link->request.test_requested &  in dp_link_is_video_pattern_requested()
1005 static bool dp_link_is_audio_pattern_requested(struct dp_link_private *link)  in dp_link_is_audio_pattern_requested()  argument
1007 	return (link->request.test_requested & DP_TEST_LINK_AUDIO_PATTERN);  in dp_link_is_audio_pattern_requested()
1010 static void dp_link_reset_data(struct dp_link_private *link)  in dp_link_reset_data()  argument
1012 	link->request = (const struct dp_link_request){ 0 };  in dp_link_reset_data()
1013 	link->dp_link.test_video = (const struct dp_link_test_video){ 0 };  in dp_link_reset_data()
1014 	link->dp_link.test_video.test_bit_depth = DP_TEST_BIT_DEPTH_UNKNOWN;  in dp_link_reset_data()
1015 	link->dp_link.test_audio = (const struct dp_link_test_audio){ 0 };  in dp_link_reset_data()
1016 	link->dp_link.phy_params.phy_test_pattern_sel = 0;  in dp_link_reset_data()
1017 	link->dp_link.sink_request = 0;  in dp_link_reset_data()
1018 	link->dp_link.test_response = 0;  in dp_link_reset_data()
1023  * @dp_link: pointer to link module data
1027  * the start of a new link training request or sink status update.
1032 	struct dp_link_private *link;  in dp_link_process_request()  local
1039 	link = container_of(dp_link, struct dp_link_private, dp_link);  in dp_link_process_request()
1041 	dp_link_reset_data(link);  in dp_link_process_request()
1043 	ret = dp_link_parse_sink_status_field(link);  in dp_link_process_request()
1047 	if (link->request.test_requested == DP_TEST_LINK_EDID_READ) {  in dp_link_process_request()
1049 	} else if (!dp_link_process_ds_port_status_change(link)) {  in dp_link_process_request()
1051 	} else if (!dp_link_process_link_training_request(link)) {  in dp_link_process_request()
1053 	} else if (!dp_link_process_phy_test_pattern_request(link)) {  in dp_link_process_request()
1056 		ret = dp_link_process_link_status_update(link);  in dp_link_process_request()
1060 			if (dp_link_is_video_pattern_requested(link)) {  in dp_link_process_request()
1064 			if (dp_link_is_audio_pattern_requested(link)) {  in dp_link_process_request()
1071 	drm_dbg_dp(link->drm_dev, "sink request=%#x",  in dp_link_process_request()
1079 	struct dp_link_private *link;  in dp_link_get_colorimetry_config()  local
1086 	link = container_of(dp_link, struct dp_link_private, dp_link);  in dp_link_get_colorimetry_config()
1092 	if (dp_link_is_video_pattern_requested(link))  in dp_link_get_colorimetry_config()
1093 		cc = link->dp_link.test_video.test_dyn_range;  in dp_link_get_colorimetry_config()
1104 	struct dp_link_private *link;  in dp_link_adjust_levels()  local
1111 	link = container_of(dp_link, struct dp_link_private, dp_link);  in dp_link_adjust_levels()
1118 		drm_dbg_dp(link->drm_dev,  in dp_link_adjust_levels()
1135 		drm_dbg_dp(link->drm_dev,  in dp_link_adjust_levels()
1143 		drm_dbg_dp(link->drm_dev,  in dp_link_adjust_levels()
1153 		drm_dbg_dp(link->drm_dev,  in dp_link_adjust_levels()
1160 	drm_dbg_dp(link->drm_dev, "adjusted: v_level=%d, p_level=%d\n",  in dp_link_adjust_levels()
1204 	struct dp_link_private *link;  in dp_link_get()  local
1212 	link = devm_kzalloc(dev, sizeof(*link), GFP_KERNEL);  in dp_link_get()
1213 	if (!link)  in dp_link_get()
1216 	link->dev   = dev;  in dp_link_get()
1217 	link->aux   = aux;  in dp_link_get()
1219 	mutex_init(&link->psm_mutex);  in dp_link_get()
1220 	dp_link = &link->dp_link;  in dp_link_get()