| /* arch/arm/mach-s3c2410/include/mach/iic.h |
| * |
| * Copyright (c) 2004 Simtec Electronics |
| * Ben Dooks <ben@simtec.co.uk> |
| * |
| * S3C2410 - I2C Controller platfrom_device info |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef __ASM_ARCH_IIC_H |
| #define __ASM_ARCH_IIC_H __FILE__ |
| |
| #define S3C_IICFLG_FILTER (1<<0) /* enable s3c2440 filter */ |
| |
| /* Notes: |
| * 1) All frequencies are expressed in Hz |
| * 2) A value of zero is `do not care` |
| */ |
| |
| struct s3c2410_platform_i2c { |
| int bus_num; /* bus number to use */ |
| unsigned int flags; |
| unsigned int slave_addr; /* slave address for controller */ |
| unsigned long bus_freq; /* standard bus frequency */ |
| unsigned long max_freq; /* max frequency for the bus */ |
| unsigned long min_freq; /* min frequency for the bus */ |
| unsigned int sda_delay; /* pclks (s3c2440 only) */ |
| |
| void (*cfg_gpio)(struct platform_device *dev); |
| }; |
| |
| /** |
| * s3c_i2c0_set_platdata - set platform data for i2c0 device |
| * @i2c: The platform data to set, or NULL for default data. |
| * |
| * Register the given platform data for use with the i2c0 device. This |
| * call copies the platform data, so the caller can use __initdata for |
| * their copy. |
| * |
| * This call will set cfg_gpio if is null to the default platform |
| * implementation. |
| * |
| * Any user of s3c_device_i2c0 should call this, even if it is with |
| * NULL to ensure that the device is given the default platform data |
| * as the driver will no longer carry defaults. |
| */ |
| extern void s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *i2c); |
| extern void s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *i2c); |
| |
| /* defined by architecture to configure gpio */ |
| extern void s3c_i2c0_cfg_gpio(struct platform_device *dev); |
| extern void s3c_i2c1_cfg_gpio(struct platform_device *dev); |
| |
| #endif /* __ASM_ARCH_IIC_H */ |