[PATCH 1/4] dt-bindings: phy: qcom,snps-eusb2-repeater: Add magic tuning overrides

[Rob Herring]

On Wed, Aug 30, 2023 at 04:40:15AM +0200, Konrad Dybcio wrote:
> The EUSB2 repeater requires some alterations to its init sequence,
> depending on board design.
> 
> Add support for making the necessary changes to that sequence to make USB
> functional on SM8550-based Xperia 1 V.
> 
> They all have lackluster description due to lack of information.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio at linaro.org>
> ---
>  .../bindings/phy/qcom,snps-eusb2-repeater.yaml      | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml
> index 029569d5fcf3..83fd6f936bf9 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml
> @@ -32,6 +32,27 @@ properties:
>  
>    vdd3-supply: true
>  
> +  qcom,tune-hsdisc-value:

Is '-value' redundant?

'-thres' or '-threshold' would be more descriptive.

> +    $ref: /schemas/types.yaml#/definitions/uint8
> +    description: High-Speed disconnect threshold
> +    minimum: 0
> +    maximum: 7
> +    default: 0
> +
> +  qcom,tune-iusb2-value:

-amplitude?

> +    $ref: /schemas/types.yaml#/definitions/uint8
> +    description: High-Speed trasmit amplitude
> +    minimum: 0
> +    maximum: 15
> +    default: 8
> +
> +  qcom,tune-usb2-preem-value:

We have 'hs', 'iusb2', and 'usb2'. Can you be consistent?

> +    $ref: /schemas/types.yaml#/definitions/uint8
> +    description: TX pre-emphasis tuning
> +    minimum: 0
> +    maximum: 7
> +    default: 5
> +
>  required:
>    - compatible
>    - reg
> 
> -- 
> 2.42.0
>