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 14 struct 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 */ 28 struct 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 */ 53 extern void s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *i2c); 54 extern void s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *i2c); 55 extern void s3c_i2c2_set_platdata(struct s3c2410_platform_i2c *i2c); 56 extern void s3c_i2c3_set_platdata(struct s3c2410_platform_i2c *i2c); 57 extern void s3c_i2c4_set_platdata(struct s3c2410_platform_i2c *i2c); 58 extern void s3c_i2c5_set_platdata(struct s3c2410_platform_i2c *i2c); 59 extern void s3c_i2c6_set_platdata(struct s3c2410_platform_i2c *i2c); 60 extern void s3c_i2c7_set_platdata(struct s3c2410_platform_i2c *i2c); 61 extern void s5p_i2c_hdmiphy_set_platdata(struct s3c2410_platform_i2c *i2c); 62 63 /* defined by architecture to configure gpio */ 64 extern void s3c_i2c0_cfg_gpio(struct platform_device *dev); 65 extern void s3c_i2c1_cfg_gpio(struct platform_device *dev); 66 extern void s3c_i2c2_cfg_gpio(struct platform_device *dev); 67 extern void s3c_i2c3_cfg_gpio(struct platform_device *dev); 68 extern void s3c_i2c4_cfg_gpio(struct platform_device *dev); 69 extern void s3c_i2c5_cfg_gpio(struct platform_device *dev); 70 extern void s3c_i2c6_cfg_gpio(struct platform_device *dev); 71 extern void s3c_i2c7_cfg_gpio(struct platform_device *dev); 72 73 extern struct s3c2410_platform_i2c default_i2c_data; 74 75 #endif /* __I2C_S3C2410_H */ 76