drm/display/drm_dp_helper.c

73 static u8 dp_link_status(const u8 link_status[DP_LINK_STATUS_SIZE], int r)
75 	return link_status[r - DP_LANE0_1_STATUS];
78 static u8 dp_get_lane_status(const u8 link_status[DP_LINK_STATUS_SIZE],
83 	u8 l = dp_link_status(link_status, i);
88 bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
95 	lane_align = dp_link_status(link_status,
100 		lane_status = dp_get_lane_status(link_status, lane);
108 bool drm_dp_clock_recovery_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
115 		lane_status = dp_get_lane_status(link_status, lane);
123 u8 drm_dp_get_adjust_request_voltage(const u8 link_status[DP_LINK_STATUS_SIZE],
130 	u8 l = dp_link_status(link_status, i);
136 u8 drm_dp_get_adjust_request_pre_emphasis(const u8 link_status[DP_LINK_STATUS_SIZE],
143 	u8 l = dp_link_status(link_status, i);
150 u8 drm_dp_get_adjust_tx_ffe_preset(const u8 link_status[DP_LINK_STATUS_SIZE],
157 	u8 l = dp_link_status(link_status, i);
164 bool drm_dp_128b132b_lane_channel_eq_done(const u8 link_status[DP_LINK_STATUS_SIZE],
170 	lane_align = dp_link_status(link_status, DP_LANE_ALIGN_STATUS_UPDATED);
175 		lane_status = dp_get_lane_status(link_status, lane);
184 bool drm_dp_128b132b_lane_symbol_locked(const u8 link_status[DP_LINK_STATUS_SIZE],
191 		lane_status = dp_get_lane_status(link_status, lane);
200 bool drm_dp_128b132b_eq_interlane_align_done(const u8 link_status[DP_LINK_STATUS_SIZE])
202 	u8 status = dp_link_status(link_status, DP_LANE_ALIGN_STATUS_UPDATED);
209 bool drm_dp_128b132b_cds_interlane_align_done(const u8 link_status[DP_LINK_STATUS_SIZE])
211 	u8 status = dp_link_status(link_status, DP_LANE_ALIGN_STATUS_UPDATED);
218 bool drm_dp_128b132b_link_training_failed(const u8 link_status[DP_LINK_STATUS_SIZE])
220 	u8 status = dp_link_status(link_status, DP_LANE_ALIGN_STATUS_UPDATED);
732  * @link_status: buffer to return the status in
735  * layout of the returned @link_status matches the DPCD register layout of the
743 				     u8 link_status[DP_LINK_STATUS_SIZE])
750 				       link_status,
763 			       link_status,
772 	memmove(&link_status[DP_SINK_STATUS - DP_LANE0_1_STATUS + 1],
773 		&link_status[DP_SINK_STATUS - DP_LANE0_1_STATUS],
775 	link_status[DP_SINK_STATUS - DP_LANE0_1_STATUS] = 0;