1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright 2004-2009 Simtec Electronics 4*4882a593Smuzhiyun * Ben Dooks <ben@simtec.co.uk> 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * S3C - I2C Controller platform_device info 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #ifndef __I2C_S3C2410_H 10*4882a593Smuzhiyun #define __I2C_S3C2410_H __FILE__ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #define S3C_IICFLG_FILTER (1<<0) /* enable s3c2440 filter */ 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun struct platform_device; 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun /** 17*4882a593Smuzhiyun * struct s3c2410_platform_i2c - Platform data for s3c I2C. 18*4882a593Smuzhiyun * @bus_num: The bus number to use (if possible). 19*4882a593Smuzhiyun * @flags: Any flags for the I2C bus (E.g. S3C_IICFLK_FILTER). 20*4882a593Smuzhiyun * @slave_addr: The I2C address for the slave device (if enabled). 21*4882a593Smuzhiyun * @frequency: The desired frequency in Hz of the bus. This is 22*4882a593Smuzhiyun * guaranteed to not be exceeded. If the caller does 23*4882a593Smuzhiyun * not care, use zero and the driver will select a 24*4882a593Smuzhiyun * useful default. 25*4882a593Smuzhiyun * @sda_delay: The delay (in ns) applied to SDA edges. 26*4882a593Smuzhiyun * @cfg_gpio: A callback to configure the pins for I2C operation. 27*4882a593Smuzhiyun */ 28*4882a593Smuzhiyun struct s3c2410_platform_i2c { 29*4882a593Smuzhiyun int bus_num; 30*4882a593Smuzhiyun unsigned int flags; 31*4882a593Smuzhiyun unsigned int slave_addr; 32*4882a593Smuzhiyun unsigned long frequency; 33*4882a593Smuzhiyun unsigned int sda_delay; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun void (*cfg_gpio)(struct platform_device *dev); 36*4882a593Smuzhiyun }; 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun /** 39*4882a593Smuzhiyun * s3c_i2c0_set_platdata - set platform data for i2c0 device 40*4882a593Smuzhiyun * @i2c: The platform data to set, or NULL for default data. 41*4882a593Smuzhiyun * 42*4882a593Smuzhiyun * Register the given platform data for use with the i2c0 device. This 43*4882a593Smuzhiyun * call copies the platform data, so the caller can use __initdata for 44*4882a593Smuzhiyun * their copy. 45*4882a593Smuzhiyun * 46*4882a593Smuzhiyun * This call will set cfg_gpio if is null to the default platform 47*4882a593Smuzhiyun * implementation. 48*4882a593Smuzhiyun * 49*4882a593Smuzhiyun * Any user of s3c_device_i2c0 should call this, even if it is with 50*4882a593Smuzhiyun * NULL to ensure that the device is given the default platform data 51*4882a593Smuzhiyun * as the driver will no longer carry defaults. 52*4882a593Smuzhiyun */ 53*4882a593Smuzhiyun extern void s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *i2c); 54*4882a593Smuzhiyun extern void s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *i2c); 55*4882a593Smuzhiyun extern void s3c_i2c2_set_platdata(struct s3c2410_platform_i2c *i2c); 56*4882a593Smuzhiyun extern void s3c_i2c3_set_platdata(struct s3c2410_platform_i2c *i2c); 57*4882a593Smuzhiyun extern void s3c_i2c4_set_platdata(struct s3c2410_platform_i2c *i2c); 58*4882a593Smuzhiyun extern void s3c_i2c5_set_platdata(struct s3c2410_platform_i2c *i2c); 59*4882a593Smuzhiyun extern void s3c_i2c6_set_platdata(struct s3c2410_platform_i2c *i2c); 60*4882a593Smuzhiyun extern void s3c_i2c7_set_platdata(struct s3c2410_platform_i2c *i2c); 61*4882a593Smuzhiyun extern void s5p_i2c_hdmiphy_set_platdata(struct s3c2410_platform_i2c *i2c); 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun /* defined by architecture to configure gpio */ 64*4882a593Smuzhiyun extern void s3c_i2c0_cfg_gpio(struct platform_device *dev); 65*4882a593Smuzhiyun extern void s3c_i2c1_cfg_gpio(struct platform_device *dev); 66*4882a593Smuzhiyun extern void s3c_i2c2_cfg_gpio(struct platform_device *dev); 67*4882a593Smuzhiyun extern void s3c_i2c3_cfg_gpio(struct platform_device *dev); 68*4882a593Smuzhiyun extern void s3c_i2c4_cfg_gpio(struct platform_device *dev); 69*4882a593Smuzhiyun extern void s3c_i2c5_cfg_gpio(struct platform_device *dev); 70*4882a593Smuzhiyun extern void s3c_i2c6_cfg_gpio(struct platform_device *dev); 71*4882a593Smuzhiyun extern void s3c_i2c7_cfg_gpio(struct platform_device *dev); 72*4882a593Smuzhiyun 73*4882a593Smuzhiyun extern struct s3c2410_platform_i2c default_i2c_data; 74*4882a593Smuzhiyun 75*4882a593Smuzhiyun #endif /* __I2C_S3C2410_H */ 76