On Tue, 19 Jan 2021 17:36:08 -0800, Thinh Nguyen wrote: > According to the USB 3.2 spec, a SuperSpeed Plus device can operate at > gen2x2, gen2x1, or gen1x2. If the USB controller device supports > multiple lanes at different transfer rates, the user can specify the HW > capability via these new speed strings: > > "super-speed-plus-gen2x2" > "super-speed-plus-gen2x1" > "super-speed-plus-gen1x2" > > If the argument is simply "super-speed-plus", USB controllers should > default to their maximum transfer rate and number of lanes. > > Signed-off-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx> > --- > Changes in v7: > - Rebase on Greg's usb-testing branch > Changes in v6: > - Update the different maximum_speed enums to the usb.yaml > - Remove Reviewed-by: Rob Herring <robh@xxxxxxxxxx> because the commit is updated > - Rebase on Greg's usb-testing branch > - Update commit message > Changes in v5: > - Add Reviewed-by: Rob Herring <robh@xxxxxxxxxx> > - Rebase on Felipe's testing/next branch > - Changed Signed-off-by email to match From: email header > Changes in v4: > - None > Changes in v3: > - Use "maximum-speed" to include both the num-lane and transfer rate for SSP > - Remove "num-lanes" and "lane-speed-mantissa-gbps" properties > Changes in v2: > - Make "num-lanes" and "lane-speed-mantissa-gbps" common USB properties > > Documentation/devicetree/bindings/usb/usb.yaml | 3 +++ > 1 file changed, 3 insertions(+) > Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
