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