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author | Simon Horman <horms+renesas@verge.net.au> | 2016-03-07 10:58:41 +0900 |
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committer | Kishon Vijay Abraham I <kishon@ti.com> | 2016-04-29 14:40:07 +0530 |
commit | cde7bc367f09e97deef143ebab3271153d87df00 (patch) | |
tree | 0f25e5e19b34a707e124e7acf1e36952e726b4c9 /drivers/phy | |
parent | 7777cb8ba08dabcab8dc0e91ac0a26dde675edb6 (diff) | |
download | linux-cde7bc367f09e97deef143ebab3271153d87df00.tar.gz linux-cde7bc367f09e97deef143ebab3271153d87df00.tar.bz2 linux-cde7bc367f09e97deef143ebab3271153d87df00.zip |
phy: rcar-gen3-usb2: add fallback binding
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 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 being adopted for
drivers for Renesas SoCs.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/phy')
-rw-r--r-- | drivers/phy/phy-rcar-gen3-usb2.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/phy/phy-rcar-gen3-usb2.c b/drivers/phy/phy-rcar-gen3-usb2.c index bc4f7dd821aa..257be74f93f5 100644 --- a/drivers/phy/phy-rcar-gen3-usb2.c +++ b/drivers/phy/phy-rcar-gen3-usb2.c @@ -251,6 +251,7 @@ static irqreturn_t rcar_gen3_phy_usb2_irq(int irq, void *_ch) static const struct of_device_id rcar_gen3_phy_usb2_match_table[] = { { .compatible = "renesas,usb2-phy-r8a7795" }, + { .compatible = "renesas,rcar-gen3-usb2-phy" }, { } }; MODULE_DEVICE_TABLE(of, rcar_gen3_phy_usb2_match_table); |