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

   1 /* SPDX-License-Identifier: MIT */
   2 /*
   3  * Copyright © 2019 Intel Corporation
   4  */
   5
   6 #ifndef __INTEL_TC_H__
   7 #define __INTEL_TC_H__
   8
   9 #include <linux/types.h>
  10
  11 struct intel_crtc_state;
  12 struct intel_digital_port;
  13 struct intel_encoder;
  14
  15 bool intel_tc_port_in_tbt_alt_mode(struct intel_digital_port *dig_port);
  16 bool intel_tc_port_in_dp_alt_mode(struct intel_digital_port *dig_port);
  17 bool intel_tc_port_in_legacy_mode(struct intel_digital_port *dig_port);
  18
  19 bool intel_tc_port_connected(struct intel_encoder *encoder);
  20 bool intel_tc_port_connected_locked(struct intel_encoder *encoder);
  21
  22 u32 intel_tc_port_get_lane_mask(struct intel_digital_port *dig_port);
  23 u32 intel_tc_port_get_pin_assignment_mask(struct intel_digital_port *dig_port);
  24 int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port);
  25 void intel_tc_port_set_fia_lane_count(struct intel_digital_port *dig_port,
  26                                       int required_lanes);
  27
  28 void intel_tc_port_init_mode(struct intel_digital_port *dig_port);
  29 void intel_tc_port_sanitize_mode(struct intel_digital_port *dig_port,
  30                                  const struct intel_crtc_state *crtc_state);
  31 void intel_tc_port_lock(struct intel_digital_port *dig_port);
  32 void intel_tc_port_unlock(struct intel_digital_port *dig_port);
  33 void intel_tc_port_suspend(struct intel_digital_port *dig_port);
  34 void intel_tc_port_get_link(struct intel_digital_port *dig_port,
  35                             int required_lanes);
  36 void intel_tc_port_put_link(struct intel_digital_port *dig_port);
  37 bool intel_tc_port_ref_held(struct intel_digital_port *dig_port);
  38 bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port);
  39 bool intel_tc_port_link_reset(struct intel_digital_port *dig_port);
  40 void intel_tc_port_link_cancel_reset_work(struct intel_digital_port *dig_port);
  41
  42 int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy);
  43 void intel_tc_port_cleanup(struct intel_digital_port *dig_port);
  44
  45 bool intel_tc_cold_requires_aux_pw(struct intel_digital_port *dig_port);
  46
  47 #endif /* __INTEL_TC_H__ */