xref: /openbmc/linux/drivers/media/i2c/aptina-pll.h (revision 726bd223)
1 /*
2  * Aptina Sensor PLL Configuration
3  *
4  * Copyright (C) 2012 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * version 2 as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License for more details.
14  */
15 
16 #ifndef __APTINA_PLL_H
17 #define __APTINA_PLL_H
18 
19 struct aptina_pll {
20 	unsigned int ext_clock;
21 	unsigned int pix_clock;
22 
23 	unsigned int n;
24 	unsigned int m;
25 	unsigned int p1;
26 };
27 
28 struct aptina_pll_limits {
29 	unsigned int ext_clock_min;
30 	unsigned int ext_clock_max;
31 	unsigned int int_clock_min;
32 	unsigned int int_clock_max;
33 	unsigned int out_clock_min;
34 	unsigned int out_clock_max;
35 	unsigned int pix_clock_max;
36 
37 	unsigned int n_min;
38 	unsigned int n_max;
39 	unsigned int m_min;
40 	unsigned int m_max;
41 	unsigned int p1_min;
42 	unsigned int p1_max;
43 };
44 
45 struct device;
46 
47 int aptina_pll_calculate(struct device *dev,
48 			 const struct aptina_pll_limits *limits,
49 			 struct aptina_pll *pll);
50 
51 #endif /* __APTINA_PLL_H */
52