From c20b59b2996c89c4f072c3312e6210528a298330 Mon Sep 17 00:00:00 2001 From: Konrad Dybcio Date: Wed, 13 Sep 2023 11:53:23 +0200 Subject: [PATCH] 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: Konrad Dybcio Acked-by: Rob Herring Link: https://lore.kernel.org/r/20230830-topic-eusb2_override-v2-1-7d8c893d93f6@linaro.org Signed-off-by: Vinod Koul --- .../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 029569d5fcf35..24c733c10e0e9 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-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 -- 2.30.2