On Thu, Dec 04, 2014 at 11:30:10PM +0100, Boris Brezillon wrote:

While working on the EBI driver [1] I noticed that the relationship between
the NFC (NAND Flash Controller) and the NAND chip it is attached to would
make things harder to represent when moving the NAND node under the EBI bus
(another useless 'ranges' definition).

Actually this representation might be even more problematic if one wants
decide to connect two NAND chips on his sama5 based board, because the NFC
node is a child of the NAND chip node, and thus can only be attached to a
single NAND chip.

To address this problem the current series moves the NFC node outside of
the NAND chip device which then reference the NFC using the "atmel,nfc"
property.

The series does not implement multi-chip support, but at least the new
representation should make it possible.

I made some comments on the DT binding. I'm not as familiar withi the
hardware details here, so I may be off base. At any rate, the code looks
OK, so if we settle the binding issue OK, then I'd be happy with a
rebased version of this patch set.

Regards,
Brian