drivers/gpu/drm/i915/display/intel_dp_mst.h

   1 /* SPDX-License-Identifier: MIT */
   2 /*
   3  * Copyright © 2019 Intel Corporation
   4  */
   5
   6 #ifndef __INTEL_DP_MST_H__
   7 #define __INTEL_DP_MST_H__
   8
   9 #include <linux/types.h>
  10
  11 struct drm_connector_state;
  12 struct intel_atomic_state;
  13 struct intel_crtc;
  14 struct intel_crtc_state;
  15 struct intel_digital_port;
  16 struct intel_dp;
  17 struct intel_link_bw_limits;
  18
  19 int intel_dp_mst_encoder_init(struct intel_digital_port *dig_port, int conn_id);
  20 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *dig_port);
  21 int intel_dp_mst_encoder_active_links(struct intel_digital_port *dig_port);
  22 bool intel_dp_mst_is_master_trans(const struct intel_crtc_state *crtc_state);
  23 bool intel_dp_mst_is_slave_trans(const struct intel_crtc_state *crtc_state);
  24 bool intel_dp_mst_source_support(struct intel_dp *intel_dp);
  25 int intel_dp_mst_add_topology_state_for_crtc(struct intel_atomic_state *state,
  26                                              struct intel_crtc *crtc);
  27 int intel_dp_mst_atomic_check_link(struct intel_atomic_state *state,
  28                                    struct intel_link_bw_limits *limits);
  29 bool intel_dp_mst_crtc_needs_modeset(struct intel_atomic_state *state,
  30                                      struct intel_crtc *crtc);
  31 void intel_dp_mst_prepare_probe(struct intel_dp *intel_dp);
  32 bool intel_dp_mst_verify_dpcd_state(struct intel_dp *intel_dp);
  33
  34 int intel_dp_mtp_tu_compute_config(struct intel_dp *intel_dp,
  35                                    struct intel_crtc_state *crtc_state,
  36                                    int max_bpp, int min_bpp,
  37                                    struct drm_connector_state *conn_state,
  38                                    int step, bool dsc);
  39
  40 #endif /* __INTEL_DP_MST_H__ */