[cip-dev] [PATCH 1/4] spi: sh-msiof: Add R-Car Gen 2 and 3 fallback bindings

[ben.hutchings@codethink.co.uk (Ben Hutchings)]

On Thu, 2018-03-08 at 17:28 +0000, Fabrizio Castro wrote:
> From: Simon Horman <horms+renesas@verge.net.au>
> 
> 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,sh-msiof. It seems poorly named as it is only
> ? compatible with SH-Mobile. It also appears unused in mainline.
> 
> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Signed-off-by: Mark Brown <broonie@kernel.org>
> (cherry picked from commit 4286db8456f4fa0c6af2b6b9abc5991a7e7da69c)
> Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
> (cherry picked from commit 77f252646eb0ec1e78847fe5725c98ee9e70b39e)

I deleted this second commit reference, which I assume refers to some
private branch.

Ben.

> (removed "renesas,rcar-gen3-msiof")
> Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
[...]

-- 
Ben Hutchings
Software Developer, Codethink Ltd.