On Thu, Jun 5, 2008 at 9:52 AM, Jochen Friedrich <[EMAIL PROTECTED]> wrote: > Hi Grant, > >> if you need explicit indexing then use an alias. My opinion however >> is that explicit indexing is unnecessary and is just an artifact of >> current i2c subsystem internals. There is already enough information >> in the device tree to match i2c devices with i2c busses without >> resorting to indexes. > > True. However, there are currently drivers which need platform data for > its initialisation (like drivers/gpio/pca953x.c). Unless these drivers > are rewritten, they can't be loaded just by parsing the device tree, so > they must be loaded from platform init code and here the adapter index > is needed to attach the driver.
... which means that platform code is responsible to figure it out. Don't encode it into the device tree. Besides, this is just a binding. I see absolutely no problem adding probe code to the bindings to extract data from the device tree. Cheers, g. -- Grant Likely, B.Sc., P.Eng. Secret Lab Technologies Ltd. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
