1/*
2 * Copyright 2004-2009 Simtec Electronics
3 *	Ben Dooks <ben@simtec.co.uk>
4 *
5 * S3C - I2C Controller platform_device info
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10*/
11
12#ifndef __I2C_S3C2410_H
13#define __I2C_S3C2410_H __FILE__
14
15#define S3C_IICFLG_FILTER	(1<<0)	/* enable s3c2440 filter */
16
17struct platform_device;
18
19/**
20 *	struct s3c2410_platform_i2c - Platform data for s3c I2C.
21 *	@bus_num: The bus number to use (if possible).
22 *	@flags: Any flags for the I2C bus (E.g. S3C_IICFLK_FILTER).
23 *	@slave_addr: The I2C address for the slave device (if enabled).
24 *	@frequency: The desired frequency in Hz of the bus.  This is
25 *                  guaranteed to not be exceeded.  If the caller does
26 *                  not care, use zero and the driver will select a
27 *                  useful default.
28 *	@sda_delay: The delay (in ns) applied to SDA edges.
29 *	@cfg_gpio: A callback to configure the pins for I2C operation.
30 */
31struct s3c2410_platform_i2c {
32	int		bus_num;
33	unsigned int	flags;
34	unsigned int	slave_addr;
35	unsigned long	frequency;
36	unsigned int	sda_delay;
37
38	void	(*cfg_gpio)(struct platform_device *dev);
39};
40
41/**
42 * s3c_i2c0_set_platdata - set platform data for i2c0 device
43 * @i2c: The platform data to set, or NULL for default data.
44 *
45 * Register the given platform data for use with the i2c0 device. This
46 * call copies the platform data, so the caller can use __initdata for
47 * their copy.
48 *
49 * This call will set cfg_gpio if is null to the default platform
50 * implementation.
51 *
52 * Any user of s3c_device_i2c0 should call this, even if it is with
53 * NULL to ensure that the device is given the default platform data
54 * as the driver will no longer carry defaults.
55 */
56extern void s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *i2c);
57extern void s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *i2c);
58extern void s3c_i2c2_set_platdata(struct s3c2410_platform_i2c *i2c);
59extern void s3c_i2c3_set_platdata(struct s3c2410_platform_i2c *i2c);
60extern void s3c_i2c4_set_platdata(struct s3c2410_platform_i2c *i2c);
61extern void s3c_i2c5_set_platdata(struct s3c2410_platform_i2c *i2c);
62extern void s3c_i2c6_set_platdata(struct s3c2410_platform_i2c *i2c);
63extern void s3c_i2c7_set_platdata(struct s3c2410_platform_i2c *i2c);
64extern void s5p_i2c_hdmiphy_set_platdata(struct s3c2410_platform_i2c *i2c);
65
66/* defined by architecture to configure gpio */
67extern void s3c_i2c0_cfg_gpio(struct platform_device *dev);
68extern void s3c_i2c1_cfg_gpio(struct platform_device *dev);
69extern void s3c_i2c2_cfg_gpio(struct platform_device *dev);
70extern void s3c_i2c3_cfg_gpio(struct platform_device *dev);
71extern void s3c_i2c4_cfg_gpio(struct platform_device *dev);
72extern void s3c_i2c5_cfg_gpio(struct platform_device *dev);
73extern void s3c_i2c6_cfg_gpio(struct platform_device *dev);
74extern void s3c_i2c7_cfg_gpio(struct platform_device *dev);
75
76extern struct s3c2410_platform_i2c default_i2c_data;
77
78#endif /* __I2C_S3C2410_H */
79