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| author | Simon Horman <horms+renesas@verge.net.au> | 2016-02-24 04:56:32 +0300 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2016-02-26 10:43:18 +0300 |
| commit | 0dfa61bba38513957240660a9cad82dd408789ca (patch) | |
| tree | f6231663c7697cbae1eeae25b70f760cd8e0cf87 /drivers/net/can | |
| parent | 59097ac9b20a0318b2b99b3338c0bb066309583e (diff) | |
| download | linux-0dfa61bba38513957240660a9cad82dd408789ca.tar.xz | |
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')
| -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); |