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authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>2018-09-10 20:15:47 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-20 13:13:56 +0200
commit0e4aeab775f9e9358c4bc522b87e9f6e2cfe0973 (patch)
tree4bf460e86761b3dc04e223ab74b476c1687b056c /Documentation/devicetree/bindings/usb/usb-ehci.txt
parentf13912d3f014a7f2fa5c35d25ee8c3f96bda6272 (diff)
dt-bindings: usb: ehci: Add clocks description for R-Car Gen3
This patch adds detailed information of an optional property "clocks" description for R-Car Gen3. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/usb/usb-ehci.txt')
-rw-r--r--Documentation/devicetree/bindings/usb/usb-ehci.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/usb/usb-ehci.txt b/Documentation/devicetree/bindings/usb/usb-ehci.txt
index 0f1b75386207..406252d14c6b 100644
--- a/Documentation/devicetree/bindings/usb/usb-ehci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-ehci.txt
@@ -15,7 +15,11 @@ Optional properties:
- needs-reset-on-resume : boolean, set this to force EHCI reset after resume
- has-transaction-translator : boolean, set this if EHCI have a Transaction
Translator built into the root hub.
- - clocks : a list of phandle + clock specifier pairs
+ - clocks : a list of phandle + clock specifier pairs. In case of Renesas
+ R-Car Gen3 SoCs:
+ - if a host only channel: first clock should be host.
+ - if a USB DRD channel: first clock should be host and second one
+ should be peripheral.
- phys : see usb-hcd.txt in the current directory
- resets : phandle + reset specifier pair