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/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _TEGRA_MIPI_PHY_H
#define _TEGRA_MIPI_PHY_H
#include <stdlib.h>
/*
* Macros for calculating the phy timings
*/
/* Period of one bit time in nano seconds */
#define DSI_TBIT_Factorized(Freq) (((1000) * (1000))/(Freq))
#define DSI_TBIT(Freq) (DSI_TBIT_Factorized(Freq)/(1000))
//#define NV_MAX(a,b) (((a) > (b)) ? (a) : (b))
/* Period of one byte time in nano seconds */
#define DSI_TBYTE(Freq) ((DSI_TBIT_Factorized(Freq)) * (8))
#define DSI_PHY_TIMING_DIV(X, Freq) ((X*1000) / (DSI_TBYTE(Freq)))
/*
* As per Mipi spec (minimum):
* (3 + MAX(8 * DSI_TBIT, 60 + 4 * DSI_TBIT) / DSI_TBYTE)
*/
#define DSI_THSTRAIL_VAL(Freq) \
(MAX(((8) * (DSI_TBIT(Freq))), ((60) + ((4) * (DSI_TBIT(Freq))))))
int mipi_dphy_set_timing(struct tegra_dsi *dsi);
#endif
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