git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| c564e6ae | 1 | /* arch/arm/plat-s3c/include/plat/iic.h |
| 1da177e4 | 2 | * |
| ccae941e | 3 | * Copyright 2004-2009 Simtec Electronics |
| 1da177e4 LT |
4 | * Ben Dooks <ben@simtec.co.uk> |
| 5 | * | |
| c564e6ae | 6 | * S3C - I2C Controller platform_device info |
| 1da177e4 LT |
7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 1da177e4 LT |
11 | */ |
| 12 | ||
| 13 | #ifndef __ASM_ARCH_IIC_H | |
| 14 | #define __ASM_ARCH_IIC_H __FILE__ | |
| 15 | ||
| 16 | #define S3C_IICFLG_FILTER (1<<0) /* enable s3c2440 filter */ | |
| 17 | ||
| c564e6ae DS |
18 | /** |
| 19 | * struct s3c2410_platform_i2c - Platform data for s3c I2C. | |
| 20 | * @bus_num: The bus number to use (if possible). | |
| 21 | * @flags: Any flags for the I2C bus (E.g. S3C_IICFLK_FILTER). | |
| 22 | * @slave_addr: The I2C address for the slave device (if enabled). | |
| 23 | * @frequency: The desired frequency in Hz of the bus. This is | |
| 24 | * guaranteed to not be exceeded. If the caller does | |
| 25 | * not care, use zero and the driver will select a | |
| 26 | * useful default. | |
| 27 | * @sda_delay: The delay (in ns) applied to SDA edges. | |
| 28 | * @cfg_gpio: A callback to configure the pins for I2C operation. | |
| 29 | */ | |
| 1da177e4 | 30 | struct s3c2410_platform_i2c { |
| c564e6ae | 31 | int bus_num; |
| 1da177e4 | 32 | unsigned int flags; |
| c564e6ae DS |
33 | unsigned int slave_addr; |
| 34 | unsigned long frequency; | |
| 35 | unsigned int sda_delay; | |
| 3e1b776c BD |
36 | |
| 37 | void (*cfg_gpio)(struct platform_device *dev); | |
| 1da177e4 LT |
38 | }; |
| 39 | ||
| 3e1b776c BD |
40 | /** |
| 41 | * s3c_i2c0_set_platdata - set platform data for i2c0 device | |
| 42 | * @i2c: The platform data to set, or NULL for default data. | |
| 43 | * | |
| 44 | * Register the given platform data for use with the i2c0 device. This | |
| 45 | * call copies the platform data, so the caller can use __initdata for | |
| 46 | * their copy. | |
| 47 | * | |
| 48 | * This call will set cfg_gpio if is null to the default platform | |
| 49 | * implementation. | |
| 50 | * | |
| 51 | * Any user of s3c_device_i2c0 should call this, even if it is with | |
| 52 | * NULL to ensure that the device is given the default platform data | |
| 53 | * as the driver will no longer carry defaults. | |
| 54 | */ | |
| 55 | extern void s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *i2c); | |
| 1aba834d | 56 | extern void s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *i2c); |
| c8d833bf | 57 | extern void s3c_i2c2_set_platdata(struct s3c2410_platform_i2c *i2c); |
| b7a98255 KP |
58 | extern void s3c_i2c3_set_platdata(struct s3c2410_platform_i2c *i2c); |
| 59 | extern void s3c_i2c4_set_platdata(struct s3c2410_platform_i2c *i2c); | |
| 60 | extern void s3c_i2c5_set_platdata(struct s3c2410_platform_i2c *i2c); | |
| 61 | extern void s3c_i2c6_set_platdata(struct s3c2410_platform_i2c *i2c); | |
| 62 | extern void s3c_i2c7_set_platdata(struct s3c2410_platform_i2c *i2c); | |
| 3e1b776c BD |
63 | |
| 64 | /* defined by architecture to configure gpio */ | |
| 65 | extern void s3c_i2c0_cfg_gpio(struct platform_device *dev); | |
| 1aba834d | 66 | extern void s3c_i2c1_cfg_gpio(struct platform_device *dev); |
| c8d833bf | 67 | extern void s3c_i2c2_cfg_gpio(struct platform_device *dev); |
| b7a98255 KP |
68 | extern void s3c_i2c3_cfg_gpio(struct platform_device *dev); |
| 69 | extern void s3c_i2c4_cfg_gpio(struct platform_device *dev); | |
| 70 | extern void s3c_i2c5_cfg_gpio(struct platform_device *dev); | |
| 71 | extern void s3c_i2c6_cfg_gpio(struct platform_device *dev); | |
| 72 | extern void s3c_i2c7_cfg_gpio(struct platform_device *dev); | |
| 3e1b776c | 73 | |
| 1da177e4 | 74 | #endif /* __ASM_ARCH_IIC_H */ |