4.14-stable review patch. If anyone has any objections, please let me know.
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From: Johan Hovold johan@kernel.org
[ Upstream commit f42ae7b0540937e00fe005812997f126aaac4bc2 ]
The USB hub port-number range for USB 2.0 is 1-255 and not 1-31 which reflects an arbitrary limit set by the current Linux implementation.
Note that for USB 3.1 hubs the valid range is 1-15.
Increase the documented valid range in the binding to 255, which is the maximum allowed by the specifications.
Signed-off-by: Johan Hovold johan@kernel.org Signed-off-by: Rob Herring robh@kernel.org Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/devicetree/bindings/usb/usb-device.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/Documentation/devicetree/bindings/usb/usb-device.txt +++ b/Documentation/devicetree/bindings/usb/usb-device.txt @@ -11,7 +11,7 @@ Required properties: 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 1-31. + is 1-255.
Example: