linux/drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.h
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   1/*
   2 * Copyright 2014 Advanced Micro Devices, Inc.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 */
  23
  24#ifndef __AMDGPU_I2C_H__
  25#define __AMDGPU_I2C_H__
  26
  27struct amdgpu_i2c_chan *amdgpu_i2c_create(struct drm_device *dev,
  28                                          const struct amdgpu_i2c_bus_rec *rec,
  29                                          const char *name);
  30void amdgpu_i2c_destroy(struct amdgpu_i2c_chan *i2c);
  31void amdgpu_i2c_init(struct amdgpu_device *adev);
  32void amdgpu_i2c_fini(struct amdgpu_device *adev);
  33void amdgpu_i2c_add(struct amdgpu_device *adev,
  34                    const struct amdgpu_i2c_bus_rec *rec,
  35                    const char *name);
  36struct amdgpu_i2c_chan *
  37amdgpu_i2c_lookup(struct amdgpu_device *adev,
  38                  const struct amdgpu_i2c_bus_rec *i2c_bus);
  39void
  40amdgpu_i2c_router_select_ddc_port(const struct amdgpu_connector *connector);
  41void
  42amdgpu_i2c_router_select_cd_port(const struct amdgpu_connector *connector);
  43
  44#endif
  45