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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/phy/qcom,qusb2-phy.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm QUSB2 phy controller
+
+maintainers:
+ - Manu Gautam <mgautam@codeaurora.org>
+
+description:
+ QUSB2 controller supports LS/FS/HS usb connectivity on Qualcomm chipsets.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - qcom,msm8996-qusb2-phy
+ - qcom,msm8998-qusb2-phy
+ - items:
+ - enum:
+ - qcom,sc7180-qusb2-phy
+ - qcom,sdm845-qusb2-phy
+ - const: qcom,qusb2-v2-phy
+ reg:
+ maxItems: 1
+
+ "#phy-cells":
+ const: 0
+
+ clocks:
+ minItems: 2
+ maxItems: 3
+ items:
+ - description: phy config clock
+ - description: 19.2 MHz ref clk
+ - description: phy interface clock (Optional)
+
+ clock-names:
+ minItems: 2
+ maxItems: 3
+ items:
+ - const: cfg_ahb
+ - const: ref
+ - const: iface
+
+ vdda-pll-supply:
+ description:
+ Phandle to 1.8V regulator supply to PHY refclk pll block.
+
+ vdda-phy-dpdm-supply:
+ description:
+ Phandle to 3.1V regulator supply to Dp/Dm port signals.
+
+ resets:
+ maxItems: 1
+ description:
+ Phandle to reset to phy block.
+
+ nvmem-cells:
+ maxItems: 1
+ description:
+ Phandle to nvmem cell that contains 'HS Tx trim'
+ tuning parameter value for qusb2 phy.
+
+ qcom,tcsr-syscon:
+ description:
+ Phandle to TCSR syscon register region.
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,qusb2-v2-phy
+then:
+ properties:
+ qcom,imp-res-offset-value:
+ description:
+ It is a 6 bit value that specifies offset to be
+ added to PHY refgen RESCODE via IMP_CTRL1 register. It is a PHY
+ tuning parameter that may vary for different boards of same SOC.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 63
+ default: 0
+
+ qcom,bias-ctrl-value:
+ description:
+ It is a 6 bit value that specifies bias-ctrl-value. It is a PHY
+ tuning parameter that may vary for different boards of same SOC.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 63
+ default: 0
+
+ qcom,charge-ctrl-value:
+ description:
+ It is a 2 bit value that specifies charge-ctrl-value. It is a PHY
+ tuning parameter that may vary for different boards of same SOC.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 3
+ default: 0
+
+ qcom,hstx-trim-value:
+ description:
+ It is a 4 bit value that specifies tuning for HSTX
+ output current.
+ Possible range is - 15mA to 24mA (stepsize of 600 uA).
+ See dt-bindings/phy/phy-qcom-qusb2.h for applicable values.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 15
+ default: 3
+
+ qcom,preemphasis-level:
+ description:
+ It is a 2 bit value that specifies pre-emphasis level.
+ Possible range is 0 to 15% (stepsize of 5%).
+ See dt-bindings/phy/phy-qcom-qusb2.h for applicable values.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 3
+ default: 2
+
+ qcom,preemphasis-width:
+ description:
+ It is a 1 bit value that specifies how long the HSTX
+ pre-emphasis (specified using qcom,preemphasis-level) must be in
+ effect. Duration could be half-bit of full-bit.
+ See dt-bindings/phy/phy-qcom-qusb2.h for applicable values.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 1
+ default: 0
+
+ qcom,hsdisc-trim-value:
+ description:
+ It is a 2 bit value tuning parameter that control disconnect
+ threshold and may vary for different boards of same SOC.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 3
+ default: 0
+
+required:
+ - compatible
+ - reg
+ - "#phy-cells"
+ - clocks
+ - clock-names
+ - vdda-pll-supply
+ - vdda-phy-dpdm-supply
+ - resets
+
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-msm8996.h>
+ hsusb_phy: phy@7411000 {
+ compatible = "qcom,msm8996-qusb2-phy";
+ reg = <0x7411000 0x180>;
+ #phy-cells = <0>;
+
+ clocks = <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>,
+ <&gcc GCC_RX1_USB2_CLKREF_CLK>;
+ clock-names = "cfg_ahb", "ref";
+
+ vdda-pll-supply = <&pm8994_l12>;
+ vdda-phy-dpdm-supply = <&pm8994_l24>;
+
+ resets = <&gcc GCC_QUSB2PHY_PRIM_BCR>;
+ nvmem-cells = <&qusb2p_hstx_trim>;
+ };