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dt-binding: usb: Include USB SSP rates in GenXxY

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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.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/cc7cc15f87e209c9963f19129f51398cdc374358.1611106162.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thinh Nguyen 2021-01-19 17:36:08 -08:00 committed by Greg Kroah-Hartman
parent 23e32a595e
commit de4d9ea789
1 changed files with 3 additions and 0 deletions
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3
Documentation/devicetree/bindings/usb/usb.yaml
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@ -54,6 +54,9 @@ properties:
- high-speed
- super-speed
- super-speed-plus
- super-speed-plus-gen2x1
- super-speed-plus-gen1x2
- super-speed-plus-gen2x2
additionalProperties: true