drivers/gpu/drm/tegra/mipi-phy.h

   1 /*
   2  * Copyright (C) 2013 NVIDIA Corporation
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8
   9 #ifndef DRM_TEGRA_MIPI_PHY_H
  10 #define DRM_TEGRA_MIPI_PHY_H
  11
  12 /*
  13  * D-PHY timing parameters
  14  *
  15  * A detailed description of these parameters can be found in the  MIPI
  16  * Alliance Specification for D-PHY, Section 5.9 "Global Operation Timing
  17  * Parameters".
  18  *
  19  * All parameters are specified in nanoseconds.
  20  */
  21 struct mipi_dphy_timing {
  22         unsigned int clkmiss;
  23         unsigned int clkpost;
  24         unsigned int clkpre;
  25         unsigned int clkprepare;
  26         unsigned int clksettle;
  27         unsigned int clktermen;
  28         unsigned int clktrail;
  29         unsigned int clkzero;
  30         unsigned int dtermen;
  31         unsigned int eot;
  32         unsigned int hsexit;
  33         unsigned int hsprepare;
  34         unsigned int hszero;
  35         unsigned int hssettle;
  36         unsigned int hsskip;
  37         unsigned int hstrail;
  38         unsigned int init;
  39         unsigned int lpx;
  40         unsigned int taget;
  41         unsigned int tago;
  42         unsigned int tasure;
  43         unsigned int wakeup;
  44 };
  45
  46 int mipi_dphy_timing_get_default(struct mipi_dphy_timing *timing,
  47                                  unsigned long period);
  48 int mipi_dphy_timing_validate(struct mipi_dphy_timing *timing,
  49                               unsigned long period);
  50
  51 #endif