Rob Herring wrote: > 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> Thanks! Thinh
