Messages in this thread Patch in this message | | | From | Konrad Dybcio <> | Date | Wed, 30 Aug 2023 04:40:15 +0200 | Subject | [PATCH 1/4] dt-bindings: phy: qcom,snps-eusb2-repeater: Add magic tuning overrides |
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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@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: + $ref: /schemas/types.yaml#/definitions/uint8 + description: High-Speed disconnect threshold + minimum: 0 + maximum: 7 + default: 0 + + qcom,tune-iusb2-value: + $ref: /schemas/types.yaml#/definitions/uint8 + description: High-Speed trasmit amplitude + minimum: 0 + maximum: 15 + default: 8 + + qcom,tune-usb2-preem-value: + $ref: /schemas/types.yaml#/definitions/uint8 + description: TX pre-emphasis tuning + minimum: 0 + maximum: 7 + default: 5 + required: - compatible - reg -- 2.42.0
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