Commit c20b59b2 authored by Konrad Dybcio's avatar Konrad Dybcio Committed by Vinod Koul
Browse files

dt-bindings: phy: qcom,snps-eusb2-repeater: Add magic tuning overrides 



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: default avatarKonrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230830-topic-eusb2_override-v2-1-7d8c893d93f6@linaro.org


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 77fee21e

Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml

+21 −0
Original line number Diff line number Diff line
@@ -32,6 +32,27 @@ properties: 


  vdd3-supply: true



  qcom,tune-usb2-disc-thres:

    $ref: /schemas/types.yaml#/definitions/uint8

    description: High-Speed disconnect threshold

    minimum: 0

    maximum: 7

    default: 0



  qcom,tune-usb2-amplitude:

    $ref: /schemas/types.yaml#/definitions/uint8

    description: High-Speed trasmit amplitude

    minimum: 0

    maximum: 15

    default: 8



  qcom,tune-usb2-preem:

    $ref: /schemas/types.yaml#/definitions/uint8

    description: High-Speed TX pre-emphasis tuning

    minimum: 0

    maximum: 7

    default: 5



required:

  - compatible

  - reg