Rtwo/kernel/motorola/sm8550-devicetrees/bindings/phy/qcom,snps-28nm-hs-usb.txt
2025-09-30 19:22:48 -05:00

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Qualcomm Synopsys 28nm Femto phy controller
===========================================
Synopsys 28nm femto phy controller supports LS/FS/HS usb connectivity on
Qualcomm chipsets.
Required properties:
- compatible:
Value type: <string>
Definition: Should contain "qcom,usb-snps-hsphy".
- reg:
Value type: <prop-encoded-array>
Definition: USB PHY base address and length of the register map
- reg-names:
Value type: <string>
Definition: Names of the reg bases in 1-1 correspondence with the
"reg" property. "phy_csr" is a mandatory reg base.
- clocks:
Value type: <prop-encoded-array>
Definition: See clock-bindings.txt section "consumers". List of
two clock specifiers for interface and core controller
clocks.
- clock-names:
Value type: <string>
Definition: Names of the clocks in 1-1 correspondence with the "clocks"
property. Must contain "phy_csr_clk" and "ref_clk" clocks.
- vdd-supply:
Value type: <phandle>
Definition: phandle to the regulator VDD supply node.
- vdda18-supply:
Value type: <phandle>
Definition: phandle to the regulator 1.8V supply node.
- vdda33-supply:
Value type: <phandle>
Definition: phandle to the regulator 3.3V supply node.
- qcom,vdd-voltage-level:
Value type: <prop-array>
Definition: This is a list of three integer values (no, min, max) where
each value corresponding to voltage corner.
- resets:
Value type: <prop-encoded-array>
Definition: See reset.txt section "consumers". PHY reset specifier.
- reset-names:
Value type: <string>
Definition: Must contain "phy_por_reset" and "phy_reset" strings.
Example:
usb_phy: phy@78d9000 {
compatible = "qcom,usb-snps-hsphy";
reg = <0x78d9000 0x400>;
reg-names = "phy_csr";
vdd-supply = <&pm8916_s1_corner>;
vdda18-supply = <&pm8916_l7>;
vdda33-supply = <&pm8916_l13>;
clocks = <&gcc GCC_USB_HS_AHB_CLK>,
<&gcc GCC_USB_HS_SYSTEM_CLK>;
clock-names = "phy_csr_clk", "ref_clk";
resets = <&gcc GCC_QUSB2_PHY_BCR>,
<&gcc GCC_USB2_HS_PHY_ONLY_BCR>;
reset-names = "phy_por_reset", "phy_reset";
};