On 18 October 2017 at 09:00, Simon Horman <horms+renesas@xxxxxxxxxxxx> wrote: > Add fallback compatibility strings for R-Car Gen 1, 2 and 3 to the SDHI > bindings and driver. > > 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. > > Based on mmc/next > > Changes since v3: > * Corrected typos in changelogs > * Enhanced grammar in comatibility string usage text > > Changes since v2: > * Update example to current upstream using newer CPG/MSSR bindings > > Changes since v1: > * Describe example in patch one as being for the r8a7790 (R-Car H2) rather > than the r8a7779 (R-Car H1) > * Accumulate review tags from Geert Uytterhoeven > > Simon Horman (3): > dt-bindings: mmc: renesas_sdhi: provide example in bindings > documentation > dt-bindings: mmc: renesas_sdhi: add R-Car Gen[123] fallback > compatibility strings > mmc: renesas_sdhi: implement R-Car Gen[123] fallback compatibility > strings > > Documentation/devicetree/bindings/mmc/tmio_mmc.txt | 70 +++++++++++++++++++++- > drivers/mmc/host/renesas_sdhi_internal_dmac.c | 1 + > drivers/mmc/host/renesas_sdhi_sys_dmac.c | 5 +- > 3 files changed, 74 insertions(+), 2 deletions(-) > > -- > 2.11.0 > Thanks, applied for next! Kind regards Uffe -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
