diff options
| author | Konrad Dybcio <konrad.dybcio@linaro.org> | 2023-09-13 12:53:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-28 20:19:45 +0300 |
| commit | de77703a0a81368a611598c89d67eaafe8c0fa78 (patch) | |
| tree | 11a6fbe378f403627d439e8503a75bb61bf95ac0 /Documentation/devicetree/bindings | |
| parent | 8f8771757b130383732195497e47fba2aba76d3a (diff) | |
| download | linux-de77703a0a81368a611598c89d67eaafe8c0fa78.tar.xz | |
dt-bindings: phy: qcom,snps-eusb2-repeater: Add magic tuning overrides
[ Upstream commit c20b59b2996c89c4f072c3312e6210528a298330 ]
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>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230830-topic-eusb2_override-v2-1-7d8c893d93f6@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings')
| -rw-r--r-- | Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml index 029569d5fcf3..24c733c10e0e 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 |