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 52