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-rw-r--r--Documentation/devicetree/bindings/usb/fsl-usb.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/usb/fsl-usb.txt b/Documentation/devicetree/bindings/usb/fsl-usb.txt
index bd5723f0b67..4779c029b67 100644
--- a/Documentation/devicetree/bindings/usb/fsl-usb.txt
+++ b/Documentation/devicetree/bindings/usb/fsl-usb.txt
@@ -8,7 +8,9 @@ and additions :
Required properties :
- compatible : Should be "fsl-usb2-mph" for multi port host USB
controllers, or "fsl-usb2-dr" for dual role USB controllers
- or "fsl,mpc5121-usb2-dr" for dual role USB controllers of MPC5121
+ or "fsl,mpc5121-usb2-dr" for dual role USB controllers of MPC5121.
+ Wherever applicable, the IP version of the USB controller should
+ also be mentioned (for eg. fsl-usb2-dr-v2.2 for bsc9132).
- phy_type : For multi port host USB controllers, should be one of
"ulpi", or "serial". For dual role USB controllers, should be
one of "ulpi", "utmi", "utmi_wide", or "serial".