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

/*
 * Copyright (C) 2013 NVIDIA Corporation
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that copyright
 * notice and this permission notice appear in supporting documentation, and
 * that the name of the copyright holders not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  The copyright holders make no representations
 * about the suitability of this software for any purpose.  It is provided "as
 * is" without express or implied warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 */

#ifndef DRM_TEGRA_MIPI_PHY_H
#define DRM_TEGRA_MIPI_PHY_H

/*
 * D-PHY timing parameters
 *
 * A detailed description of these parameters can be found in the  MIPI
 * Alliance Specification for D-PHY, Section 5.9 "Global Operation Timing
 * Parameters".
 *
 * All parameters are specified in nanoseconds.
 */
struct mipi_dphy_timing {
	unsigned int clkmiss;
	unsigned int clkpost;
	unsigned int clkpre;
	unsigned int clkprepare;
	unsigned int clksettle;
	unsigned int clktermen;
	unsigned int clktrail;
	unsigned int clkzero;
	unsigned int dtermen;
	unsigned int eot;
	unsigned int hsexit;
	unsigned int hsprepare;
	unsigned int hszero;
	unsigned int hssettle;
	unsigned int hsskip;
	unsigned int hstrail;
	unsigned int init;
	unsigned int lpx;
	unsigned int taget;
	unsigned int tago;
	unsigned int tasure;
	unsigned int wakeup;
};

int mipi_dphy_timing_get_default(struct mipi_dphy_timing *timing,
				 unsigned long period);
int mipi_dphy_timing_validate(struct mipi_dphy_timing *timing,
			      unsigned long period);

#endif