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-rw-r--r--dts/Bindings/usb/usb-ohci.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/dts/Bindings/usb/usb-ohci.txt b/dts/Bindings/usb/usb-ohci.txt
index a8d2103d1f..aaaa5255c9 100644
--- a/dts/Bindings/usb/usb-ohci.txt
+++ b/dts/Bindings/usb/usb-ohci.txt
@@ -12,7 +12,11 @@ Optional properties:
- no-big-frame-no : boolean, set if frame_no lives in bits [15:0] of HCCA
- remote-wakeup-connected: remote wakeup is wired on the platform
- num-ports : u32, to override the detected port count
-- 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 : a list of phandle + reset specifier pairs