bindings/phy/qcom%2Cusb-snps-femto-v2.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/phy/qcom,usb-snps-femto-v2.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Qualcomm Synopsys Femto High-Speed USB PHY V2
10   - Wesley Cheng <quic_wcheng@quicinc.com>
13   Qualcomm High-Speed USB PHY
18       - items:
19           - enum:
20               - qcom,sa8775p-usb-hs-phy
21               - qcom,sc8280xp-usb-hs-phy
22           - const: qcom,usb-snps-hs-5nm-phy
23       - items:
24           - enum:
25               - qcom,sc7280-usb-hs-phy
26               - qcom,sc8180x-usb-hs-phy
27               - qcom,sdx55-usb-hs-phy
28               - qcom,sdx65-usb-hs-phy
29               - qcom,sm6375-usb-hs-phy
30               - qcom,sm8150-usb-hs-phy
31               - qcom,sm8250-usb-hs-phy
32               - qcom,sm8350-usb-hs-phy
33               - qcom,sm8450-usb-hs-phy
34           - const: qcom,usb-snps-hs-7nm-phy
39   "#phy-cells":
44       - description: rpmhcc ref clock
46   clock-names:
48       - const: ref
52       - description: PHY core reset
54   vdda-pll-supply:
57   vdda18-supply:
60   vdda33-supply:
63   qcom,hs-disconnect-bp:
69     minimum: -272
70     maximum: 2156
72   qcom,squelch-detector-bp:
75       detect valid high-speed data.
78     minimum: -2090
79     maximum: 1590
81   qcom,hs-amplitude-bp:
83       This adjusts the high-speed DC level voltage.
86     minimum: -660
87     maximum: 2670
89   qcom,pre-emphasis-duration-bp:
92       HS pre-emphasis current is sourced onto DP<#> or DM<#>.
93       The HS Transmitter pre-emphasis duration is defined in terms of
94       unit amounts. One unit of pre-emphasis duration is approximately
95       650 ps and is defined as 1X pre-emphasis duration.
99     maximum: 20000
101   qcom,pre-emphasis-amplitude-bp:
104       DP<#> and DM<#> after a J-to-K or K-to-J transition.
105       The HS Transmitter pre-emphasis current is defined in terms of unit
107       1X pre-emphasis current.
111     maximum: 40000
113   qcom,hs-rise-fall-time-bp:
115       This adjusts the rise/fall times of the high-speed waveform.
118     minimum: -4100
119     maximum: 5430
121   qcom,hs-crossover-voltage-microvolt:
127     minimum: -31000
128     maximum: 28000
130   qcom,hs-output-impedance-micro-ohms:
133       on the D+ and D- paths between the transceiver and cable. This adjusts
138     minimum: -2300000
139     maximum: 6100000
141   qcom,ls-fs-output-impedance-bp:
143       This adjusts the low- and full-speed single-ended source
148     minimum: -1053
149     maximum: 1310
152   - compatible
153   - reg
154   - "#phy-cells"
155   - clocks
156   - clock-names
157   - resets
158   - vdda-pll-supply
159   - vdda18-supply
160   - vdda33-supply
165   - |
166     #include <dt-bindings/clock/qcom,rpmh.h>
167     #include <dt-bindings/clock/qcom,gcc-sm8150.h>
169         compatible = "qcom,sm8150-usb-hs-phy", "qcom,usb-snps-hs-7nm-phy";
171         #phy-cells = <0>;
174         clock-names = "ref";
178         vdda-pll-supply = <&vdd_usb_hs_core>;
179         vdda33-supply = <&vdda_usb_hs_3p1>;
180         vdda18-supply = <&vdda_usb_hs_1p8>;