[U-Boot] unneeded exported function i2c_mux_add_device

[Heiko Schocher <hs@denx.de>]

Hello Frans,

Frans Meulenbroeks wrote:
> While grepping some sources I bumped upon i2c_mux_add_device
> This one is implemented in cmd_i2c.c and exported through i2c.h.
> However no-one outside cmd_i2c.c is using it:
> 
> frans at linux-suse:~/u-boot> grep -r i2c_mux_add_device .
> ./common/cmd_i2c.c:int i2c_mux_add_device(I2C_MUX_DEVICE *dev)
> ./common/cmd_i2c.c:		i2c_mux_add_device (device);
> ./include/i2c.h:int	i2c_mux_add_device(I2C_MUX_DEVICE *dev);
> frans at linux-suse:~/u-boot>
> 
> Should we make this function static and remove from the .h file?

Yep, good catch. Please post a patch.

bye
Heiko
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