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author | Simon Horman <horms+renesas@verge.net.au> | 2016-02-24 10:56:32 +0900 |
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committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2016-02-26 08:43:18 +0100 |
commit | 0dfa61bba38513957240660a9cad82dd408789ca (patch) | |
tree | f6231663c7697cbae1eeae25b70f760cd8e0cf87 /drivers/net/can/rcar_can.c | |
parent | 59097ac9b20a0318b2b99b3338c0bb066309583e (diff) | |
download | linux-0dfa61bba38513957240660a9cad82dd408789ca.tar.gz |
can: rcar: add gen[12] fallback compatibility strings
Add fallback compatibility string for R-Car Gen 1 and Gen2. In the case of Renesas R-Car hardware we know that there are generations of SoCs, e.g. Gen 1 and Gen 2. But beyond that its not clear what the relationship between IP blocks might be. For example, I believe that r8a7779 is older than r8a7778 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 being adopted for drivers for Renesas SoCs. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/rcar_can.c')
-rw-r--r-- | drivers/net/can/rcar_can.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/can/rcar_can.c b/drivers/net/can/rcar_can.c index bc46be39549d..ad3d2e0cb191 100644 --- a/drivers/net/can/rcar_can.c +++ b/drivers/net/can/rcar_can.c @@ -904,6 +904,8 @@ static const struct of_device_id rcar_can_of_table[] __maybe_unused = { { .compatible = "renesas,can-r8a7779" }, { .compatible = "renesas,can-r8a7790" }, { .compatible = "renesas,can-r8a7791" }, + { .compatible = "renesas,rcar-gen1-can" }, + { .compatible = "renesas,rcar-gen2-can" }, { } }; MODULE_DEVICE_TABLE(of, rcar_can_of_table); |