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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/phy/qcom,usb-snps-femto-v2.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Qualcomm Synopsys Femto High-Speed USB PHY V28 9maintainers:10 - Wesley Cheng <quic_wcheng@quicinc.com>11 12description: |13 Qualcomm High-Speed USB PHY14 15properties:16 compatible:17 oneOf:18 - items:19 - enum:20 - qcom,sa8775p-usb-hs-phy21 - qcom,sc8280xp-usb-hs-phy22 - const: qcom,usb-snps-hs-5nm-phy23 - items:24 - enum:25 - qcom,qdu1000-usb-hs-phy26 - qcom,sc7280-usb-hs-phy27 - qcom,sc8180x-usb-hs-phy28 - qcom,sdx55-usb-hs-phy29 - qcom,sdx65-usb-hs-phy30 - qcom,sm6375-usb-hs-phy31 - qcom,sm8150-usb-hs-phy32 - qcom,sm8250-usb-hs-phy33 - qcom,sm8350-usb-hs-phy34 - qcom,sm8450-usb-hs-phy35 - const: qcom,usb-snps-hs-7nm-phy36 37 reg:38 maxItems: 139 40 "#phy-cells":41 const: 042 43 clocks:44 items:45 - description: rpmhcc ref clock46 47 clock-names:48 items:49 - const: ref50 51 resets:52 items:53 - description: PHY core reset54 55 vdda-pll-supply:56 description: phandle to the regulator VDD supply node.57 58 vdda18-supply:59 description: phandle to the regulator 1.8V supply node.60 61 vdda33-supply:62 description: phandle to the regulator 3.3V supply node.63 64 qcom,hs-disconnect-bp:65 description:66 This adjusts the voltage level for the threshold used to67 detect a disconnect event at the host.68 The hardware accepts only discrete values. The value closest to the69 provided input will be chosen as the override value for this param.70 minimum: -27271 maximum: 215672 73 qcom,squelch-detector-bp:74 description:75 This adjusts the voltage level for the threshold used to76 detect valid high-speed data.77 The hardware accepts only discrete values. The value closest to the78 provided input will be chosen as the override value for this param.79 minimum: -209080 maximum: 159081 82 qcom,hs-amplitude-bp:83 description:84 This adjusts the high-speed DC level voltage.85 The hardware accepts only discrete values. The value closest to the86 provided input will be chosen as the override value for this param.87 minimum: -66088 maximum: 267089 90 qcom,pre-emphasis-duration-bp:91 description:92 This signal controls the duration for which the93 HS pre-emphasis current is sourced onto DP<#> or DM<#>.94 The HS Transmitter pre-emphasis duration is defined in terms of95 unit amounts. One unit of pre-emphasis duration is approximately96 650 ps and is defined as 1X pre-emphasis duration.97 The hardware accepts only discrete values. The value closest to the98 provided input will be chosen as the override value for this param.99 minimum: 10000100 maximum: 20000101 102 qcom,pre-emphasis-amplitude-bp:103 description:104 This signal controls the amount of current sourced to105 DP<#> and DM<#> after a J-to-K or K-to-J transition.106 The HS Transmitter pre-emphasis current is defined in terms of unit107 amounts. One unit amount is approximately 2 mA and is defined as108 1X pre-emphasis current.109 The hardware accepts only discrete values. The value closest to the110 provided input will be chosen as the override value for this param.111 minimum: 10000112 maximum: 40000113 114 qcom,hs-rise-fall-time-bp:115 description:116 This adjusts the rise/fall times of the high-speed waveform.117 The hardware accepts only discrete values. The value closest to the118 provided input will be chosen as the override value for this param.119 minimum: -4100120 maximum: 5430121 122 qcom,hs-crossover-voltage-microvolt:123 description:124 This adjusts the voltage at which the DP<#> and DM<#>125 signals cross while transmitting in HS mode.126 The hardware accepts only discrete values. The value closest to the127 provided input will be chosen as the override value for this param.128 minimum: -31000129 maximum: 28000130 131 qcom,hs-output-impedance-micro-ohms:132 description:133 In some applications, there can be significant series resistance134 on the D+ and D- paths between the transceiver and cable. This adjusts135 the driver source impedance to compensate for added series136 resistance on the USB. The hardware accepts only discrete values. The137 value closest to the provided input will be chosen as the override value138 for this param.139 minimum: -2300000140 maximum: 6100000141 142 qcom,ls-fs-output-impedance-bp:143 description:144 This adjusts the low- and full-speed single-ended source145 impedance while driving high. The following adjustment values are based146 on nominal process, voltage, and temperature.147 The hardware accepts only discrete values. The value closest to the148 provided input will be chosen as the override value for this param.149 minimum: -1053150 maximum: 1310151 152required:153 - compatible154 - reg155 - "#phy-cells"156 - clocks157 - clock-names158 - resets159 - vdda-pll-supply160 - vdda18-supply161 - vdda33-supply162 163additionalProperties: false164 165examples:166 - |167 #include <dt-bindings/clock/qcom,rpmh.h>168 #include <dt-bindings/clock/qcom,gcc-sm8150.h>169 phy@88e2000 {170 compatible = "qcom,sm8150-usb-hs-phy", "qcom,usb-snps-hs-7nm-phy";171 reg = <0x088e2000 0x400>;172 #phy-cells = <0>;173 174 clocks = <&rpmhcc RPMH_CXO_CLK>;175 clock-names = "ref";176 177 resets = <&gcc GCC_QUSB2PHY_PRIM_BCR>;178 179 vdda-pll-supply = <&vdd_usb_hs_core>;180 vdda33-supply = <&vdda_usb_hs_3p1>;181 vdda18-supply = <&vdda_usb_hs_1p8>;182 };183...184