[PATCH 12/20] dt-bindings: usb: dwc3: Add Tx De-emphasis restrictions

[Rob Herring]

On Wed, 14 Oct 2020 13:13:54 +0300, Serge Semin wrote:
> In accordance with the driver comments the PIPE3 de-emphasis can be tuned
> to be either -6dB, -2.5dB or disabled. Let's add the de-emphasis
> property restriction so the DT schema would make sure the controller DT
> node is equipped with correct value.
> 
> Signed-off-by: Serge Semin <Sergey.Semin at baikalelectronics.ru>
> 
> ---
> 
> Changelog v2:
> - Grammar fix: "s/tunned/tuned"
> - Grammar fix: remove redundant "or" conjunction.
> ---
>  Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 

Reviewed-by: Rob Herring <robh at kernel.org>