On Wed, Oct 18, 2017 at 09:00:23AM +0200, Simon Horman wrote: > Implement fallback compatibility strings for R-Car Gen 1, 2 and 3. > > In the case of Renesas R-Car hardware we know that there are generations of > SoCs, f.e. Gen 1 and 2. But beyond that its 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, improve readability by listing the shmobile fallback compatibility > string after the more-specific compatibility strings they provide a > fallback for. > > Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx> > Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> Acked-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
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