Re: [PATCH v4 i2c/for-next] i2c: rcar: Add per-Generation fallback bindings

On Tue, Dec 06, 2016 at 05:01:28PM +0100, Simon Horman wrote:

In the case of Renesas R-Car hardware we know that there are generations of
SoCs, e.g. Gen 2 and Gen 3. But beyond that it's not clear what the
relationship between IP blocks might be. For example, I believe that
r8a7790 is older than r8a7791 but that doesn't imply that the latter is a
descendant of the former or vice versa.

We can, however, by examining the documentation and behaviour of the
hardware at run-time observe that the current driver implementation appears
to be compatible with the IP blocks on SoCs within a given generation.

For the above reasons and convenience when enabling new SoCs a
per-generation fallback compatibility string scheme is being adopted for
drivers for Renesas SoCs.

Also:
* Deprecate renesas,i2c-rcar. It seems poorly named as it is only
  compatible with R-Car Gen 1. It also appears unused in mainline.
* Add some text to describe per-SoC bindings

Signed-off-by: Simon Horman <redacted>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Changed '//' comment to '/*' comment and applied to for-next, thanks!