| Message ID | 20190116142037.10086-1-m.felsch@pengutronix.de (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | 5d6353fe6984e7c3c41dae47aa38ee9c8ddaebd8 |
| Headers | show |
| Series | [v3,1/2] dt-bindings: usb: usb251xb: add documentation for data lane swapping | expand |
On Wed, 16 Jan 2019 15:20:36 +0100, Marco Felsch wrote: > Add optional binding to allow USB differential-pair (D+/D-) data lane > swapping. The swapping can be specified for each port separately, > default is no swapping. > > Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> > Reviewed-by: Richard Leitner <richard.leitner@skidata.com> > --- > Changes: > v3: > - no changes > v2: > - rename property s/sw-dx-lanes-ports/swap-dx-lanes > > Documentation/devicetree/bindings/usb/usb251xb.txt | 4 ++++ > 1 file changed, 4 insertions(+) > Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/usb/usb251xb.txt b/Documentation/devicetree/bindings/usb/usb251xb.txt index 168ff819e827..17915f64b8ee 100644 --- a/Documentation/devicetree/bindings/usb/usb251xb.txt +++ b/Documentation/devicetree/bindings/usb/usb251xb.txt @@ -64,6 +64,8 @@ Optional properties : - power-on-time-ms : Specifies the time it takes from the time the host initiates the power-on sequence to a port until the port has adequate power. The value is given in ms in a 0 - 510 range (default is 100ms). + - swap-dx-lanes : Specifies the ports which will swap the differential-pair + (D+/D-), default is not-swapped. Examples: usb2512b@2c { @@ -81,4 +83,6 @@ Examples: manufacturer = "Foo"; product = "Foo-Bar"; serial = "1234567890A"; + /* correct misplaced usb connectors on port 1,2 */ + swap-dx-lanes = <1 2>; };