[PATCH 2/5] ARM: shmobile: r8a7791: add i2c master nodes to dtsi

[Wolfram Sang]

> > Why is that? From my knowledge, you start with the exact compatible
> > property and hardware compatible entries may follow.
> 
> I think this boils down to if they really are compatible or not. If
> for instance a 16550 port would be compatible with 8250 on a hardware
> level then using them in the order of "16550", "8250" makes sense. In
> this case the r8a7791 i2c is not really strictly based on r8a7790 i2c,
> it is just that r8a7790 has support in the driver. So it's a short cut
> instead of actual hardware compatibility.

I don't get this point. The legacy board code for koelsch and lager both
create a platform_device with "i2c-rcar_gen2", so the cores surely must
be compatible? Maybe the cores are not strictly based on each other, but
compatible, yes, I'd say.

> So far we've dealt with this by updating the driver and only relying
> on the actual SoC name as suffix.

OK, for consistency reasons I will resend.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20140217/064932de/attachment.sig>