[PATCH 3/8] dt-bindings: usb: clean up compatible property

[Johan Hovold <johan-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>]

Add quotation marks around the compatible string to avoid ambiguity due
to following punctuation, and define the VID and PID components.

Signed-off-by: Johan Hovold <johan-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
 Documentation/devicetree/bindings/usb/usb-device.txt | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/usb-device.txt b/Documentation/devicetree/bindings/usb/usb-device.txt
index b749fb9f2674..e0b562e35a0c 100644
--- a/Documentation/devicetree/bindings/usb/usb-device.txt
+++ b/Documentation/devicetree/bindings/usb/usb-device.txt
@@ -5,11 +5,11 @@ The reference binding doc is from:
 http://www.devicetree.org/open-firmware/bindings/usb/usb-1_0.ps
 
 Required properties:
-- compatible: usbVID,PID. The textual representation of VID, PID shall
-  be in lower case hexadecimal with leading zeroes suppressed. The
-  other compatible strings from the above standard binding could also
-  be used, but a device adhering to this binding may leave out all except
-  for usbVID,PID.
+- compatible: "usbVID,PID", where VID is the vendor id and PID the product id.
+  The textual representation of VID and PID shall be in lower case hexadecimal
+  with leading zeroes suppressed. The other compatible strings from the above
+  standard binding could also be used, but a device adhering to this binding
+  may leave out all except for "usbVID,PID".
 - reg: the port number which this device is connecting to, the range
   is 1-255.
 
-- 
2.15.0

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