[U-Boot] Adding a composite device, how to structure ?

[Tom]

Wolfgang,

I would like to add support for the twl4030,  a composite i2c device, 
found on the omap3 zoom's.
The header file will be include/twl4030.h.
How do you want the source to be structured ?
1.  A single large file in drivers/i2c/twl4030.c

or device files added under a directory ?

2.  drivers/i2c/twl4030/keyboard, drivers/i2c/twl4030/usb,  
drivers/i2c/twl4030/battery, 

or just the common code in i2c and twl4030 devices in the  places they 
usually go.

3.  drivers/i2c/twl4030.c, drivers/usb/tw4030_usb.c  etc ..

My guess is #3.

Tom