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c20b59b299
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>
79 lines
1.6 KiB
YAML
79 lines
1.6 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/phy/qcom,snps-eusb2-repeater.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Synopsis eUSB2 to USB 2.0 repeater
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maintainers:
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- Abel Vesa <abel.vesa@linaro.org>
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description:
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eUSB2 repeater converts between eUSB2 and USB 2.0 signaling levels and
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allows a eUSB2 PHY to connect to legacy USB 2.0 products
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- qcom,pm7550ba-eusb2-repeater
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- const: qcom,pm8550b-eusb2-repeater
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- const: qcom,pm8550b-eusb2-repeater
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reg:
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maxItems: 1
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"#phy-cells":
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const: 0
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vdd18-supply: true
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vdd3-supply: true
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qcom,tune-usb2-disc-thres:
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$ref: /schemas/types.yaml#/definitions/uint8
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description: High-Speed disconnect threshold
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minimum: 0
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maximum: 7
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default: 0
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qcom,tune-usb2-amplitude:
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$ref: /schemas/types.yaml#/definitions/uint8
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description: High-Speed trasmit amplitude
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minimum: 0
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maximum: 15
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default: 8
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qcom,tune-usb2-preem:
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$ref: /schemas/types.yaml#/definitions/uint8
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description: High-Speed TX pre-emphasis tuning
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minimum: 0
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maximum: 7
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default: 5
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required:
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- compatible
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- reg
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- "#phy-cells"
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/spmi/spmi.h>
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pmic@7 {
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reg = <0x7 SPMI_USID>;
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#address-cells = <1>;
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#size-cells = <0>;
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pm8550b_eusb2_repeater: phy@fd00 {
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compatible = "qcom,pm8550b-eusb2-repeater";
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reg = <0xfd00>;
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#phy-cells = <0>;
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};
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};
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...
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