1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright 2004-2009 Simtec Electronics
4 *	Ben Dooks <ben@simtec.co.uk>
5 *
6 * S3C - I2C Controller platform_device info
7*/
8
9#ifndef __I2C_S3C2410_H
10#define __I2C_S3C2410_H __FILE__
11
12#define S3C_IICFLG_FILTER	(1<<0)	/* enable s3c2440 filter */
13
14struct platform_device;
15
16/**
17 *	struct s3c2410_platform_i2c - Platform data for s3c I2C.
18 *	@bus_num: The bus number to use (if possible).
19 *	@flags: Any flags for the I2C bus (E.g. S3C_IICFLK_FILTER).
20 *	@slave_addr: The I2C address for the slave device (if enabled).
21 *	@frequency: The desired frequency in Hz of the bus.  This is
22 *                  guaranteed to not be exceeded.  If the caller does
23 *                  not care, use zero and the driver will select a
24 *                  useful default.
25 *	@sda_delay: The delay (in ns) applied to SDA edges.
26 *	@cfg_gpio: A callback to configure the pins for I2C operation.
27 */
28struct s3c2410_platform_i2c {
29	int		bus_num;
30	unsigned int	flags;
31	unsigned int	slave_addr;
32	unsigned long	frequency;
33	unsigned int	sda_delay;
34
35	void	(*cfg_gpio)(struct platform_device *dev);
36};
37
38/**
39 * s3c_i2c0_set_platdata - set platform data for i2c0 device
40 * @i2c: The platform data to set, or NULL for default data.
41 *
42 * Register the given platform data for use with the i2c0 device. This
43 * call copies the platform data, so the caller can use __initdata for
44 * their copy.
45 *
46 * This call will set cfg_gpio if is null to the default platform
47 * implementation.
48 *
49 * Any user of s3c_device_i2c0 should call this, even if it is with
50 * NULL to ensure that the device is given the default platform data
51 * as the driver will no longer carry defaults.
52 */
53extern void s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *i2c);
54extern void s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *i2c);
55extern void s3c_i2c2_set_platdata(struct s3c2410_platform_i2c *i2c);
56extern void s3c_i2c3_set_platdata(struct s3c2410_platform_i2c *i2c);
57extern void s3c_i2c4_set_platdata(struct s3c2410_platform_i2c *i2c);
58extern void s3c_i2c5_set_platdata(struct s3c2410_platform_i2c *i2c);
59extern void s3c_i2c6_set_platdata(struct s3c2410_platform_i2c *i2c);
60extern void s3c_i2c7_set_platdata(struct s3c2410_platform_i2c *i2c);
61extern void s5p_i2c_hdmiphy_set_platdata(struct s3c2410_platform_i2c *i2c);
62
63/* defined by architecture to configure gpio */
64extern void s3c_i2c0_cfg_gpio(struct platform_device *dev);
65extern void s3c_i2c1_cfg_gpio(struct platform_device *dev);
66extern void s3c_i2c2_cfg_gpio(struct platform_device *dev);
67extern void s3c_i2c3_cfg_gpio(struct platform_device *dev);
68extern void s3c_i2c4_cfg_gpio(struct platform_device *dev);
69extern void s3c_i2c5_cfg_gpio(struct platform_device *dev);
70extern void s3c_i2c6_cfg_gpio(struct platform_device *dev);
71extern void s3c_i2c7_cfg_gpio(struct platform_device *dev);
72
73extern struct s3c2410_platform_i2c default_i2c_data;
74
75#endif /* __I2C_S3C2410_H */
76