path: root/drivers/media/i2c/aptina-pll.h

/*
 * Aptina Sensor PLL Configuration
 *
 * Copyright (C) 2012 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */

#ifndef __APTINA_PLL_H
#define __APTINA_PLL_H

struct aptina_pll {
	unsigned int ext_clock;
	unsigned int pix_clock;

	unsigned int n;
	unsigned int m;
	unsigned int p1;
};

struct aptina_pll_limits {
	unsigned int ext_clock_min;
	unsigned int ext_clock_max;
	unsigned int int_clock_min;
	unsigned int int_clock_max;
	unsigned int out_clock_min;
	unsigned int out_clock_max;
	unsigned int pix_clock_max;

	unsigned int n_min;
	unsigned int n_max;
	unsigned int m_min;
	unsigned int m_max;
	unsigned int p1_min;
	unsigned int p1_max;
};

struct device;

int aptina_pll_calculate(struct device *dev,
			 const struct aptina_pll_limits *limits,
			 struct aptina_pll *pll);

#endif /* __APTINA_PLL_H */