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 17 struct 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 */ 31 struct 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 */ 56 extern void s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *i2c); 57 extern void s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *i2c); 58 extern void s3c_i2c2_set_platdata(struct s3c2410_platform_i2c *i2c); 59 extern void s3c_i2c3_set_platdata(struct s3c2410_platform_i2c *i2c); 60 extern void s3c_i2c4_set_platdata(struct s3c2410_platform_i2c *i2c); 61 extern void s3c_i2c5_set_platdata(struct s3c2410_platform_i2c *i2c); 62 extern void s3c_i2c6_set_platdata(struct s3c2410_platform_i2c *i2c); 63 extern void s3c_i2c7_set_platdata(struct s3c2410_platform_i2c *i2c); 64 extern void s5p_i2c_hdmiphy_set_platdata(struct s3c2410_platform_i2c *i2c); 65 66 /* defined by architecture to configure gpio */ 67 extern void s3c_i2c0_cfg_gpio(struct platform_device *dev); 68 extern void s3c_i2c1_cfg_gpio(struct platform_device *dev); 69 extern void s3c_i2c2_cfg_gpio(struct platform_device *dev); 70 extern void s3c_i2c3_cfg_gpio(struct platform_device *dev); 71 extern void s3c_i2c4_cfg_gpio(struct platform_device *dev); 72 extern void s3c_i2c5_cfg_gpio(struct platform_device *dev); 73 extern void s3c_i2c6_cfg_gpio(struct platform_device *dev); 74 extern void s3c_i2c7_cfg_gpio(struct platform_device *dev); 75 76 extern struct s3c2410_platform_i2c default_i2c_data; 77 78 #endif /* __I2C_S3C2410_H */ 79
