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dm: i2c: Add two more I2C init functions to the compatibility layer

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These functions are useful in case the board calls them. Also fix a missing
parameter caused by applying the wrong patch (actually I failed to send v2
and applied v1 by mistake).

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-01-26 20:29:39 -07:00
parent bd768264fb
commit d744d56136
2 changed files with 28 additions and 3 deletions
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14
drivers/i2c/i2c-uclass-compat.c
View File

@ -22,8 +22,8 @@ static int i2c_compat_get_device(uint chip_addr, int alen,
return ret;
chip = dev_get_parent_platdata(*devp);
if (chip->offset_len != alen) {
printf("Requested alen %d does not match chip offset_len %d\n",
alen, chip->offset_len);
printf("I2C chip %x: requested alen %d does not match chip offset_len %d\n",
chip_addr, alen, chip->offset_len);
return -EADDRNOTAVAIL;
}
@ -96,3 +96,13 @@ int i2c_set_bus_num(unsigned int bus)
return 0;
}
void i2c_init(int speed, int slaveaddr)
{
/* Nothing to do here - the init happens through driver model */
}
void board_i2c_init(const void *blob)
{
/* Nothing to do here - the init happens through driver model */
}

17
include/i2c.h
View File

@ -225,7 +225,7 @@ int i2c_get_bus_num_fdt(int node);
unsigned int i2c_get_bus_num(void);
/**
* i2c_set_bus_num(): Compatibility function for driver model
* i2c_set_bus_num() - Compatibility function for driver model
*
* Sets the 'current' bus
*/
@ -241,6 +241,21 @@ static inline unsigned int I2C_GET_BUS(void)
return i2c_get_bus_num();
}
/**
* i2c_init() - Compatibility function for driver model
*
* This function does nothing.
*/
void i2c_init(int speed, int slaveaddr);
/**
* board_i2c_init() - Compatibility function for driver model
*
* @param blob Device tree blbo
* @return the number of I2C bus
*/
void board_i2c_init(const void *blob);
#endif
/*