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Diffstat (limited to 'Documentation/devicetree/bindings/phy/qcom,usb-hsic-phy.txt')
-rw-r--r-- | Documentation/devicetree/bindings/phy/qcom,usb-hsic-phy.txt | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/qcom,usb-hsic-phy.txt b/Documentation/devicetree/bindings/phy/qcom,usb-hsic-phy.txt new file mode 100644 index 000000000000..3c7cb2be4b12 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/qcom,usb-hsic-phy.txt @@ -0,0 +1,65 @@ +Qualcomm's USB HSIC PHY + +PROPERTIES + +- compatible: + Usage: required + Value type: <string> + Definition: Should contain "qcom,usb-hsic-phy" and more specifically one of the + following: + + "qcom,usb-hsic-phy-mdm9615" + "qcom,usb-hsic-phy-msm8974" + +- #phy-cells: + Usage: required + Value type: <u32> + Definition: Should contain 0 + +- clocks: + Usage: required + Value type: <prop-encoded-array> + Definition: Should contain clock specifier for phy, calibration and + a calibration sleep clock + +- clock-names: + Usage: required + Value type: <stringlist> + Definition: Should contain "phy, "cal" and "cal_sleep" + +- pinctrl-names: + Usage: required + Value type: <stringlist> + Definition: Should contain "init" and "default" in that order + +- pinctrl-0: + Usage: required + Value type: <prop-encoded-array> + Definition: List of pinctrl settings to apply to keep HSIC pins in a glitch + free state + +- pinctrl-1: + Usage: required + Value type: <prop-encoded-array> + Definition: List of pinctrl settings to apply to mux out the HSIC pins + +EXAMPLE + +usb-controller { + ulpi { + phy { + compatible = "qcom,usb-hsic-phy-msm8974", + "qcom,usb-hsic-phy"; + #phy-cells = <0>; + pinctrl-names = "init", "default"; + pinctrl-0 = <&hsic_sleep>; + pinctrl-1 = <&hsic_default>; + clocks = <&gcc GCC_USB_HSIC_CLK>, + <&gcc GCC_USB_HSIC_IO_CAL_CLK>, + <&gcc GCC_USB_HSIC_IO_CAL_SLEEP_CLK>; + clock-names = "phy", "cal", "cal_sleep"; + assigned-clocks = <&gcc GCC_USB_HSIC_IO_CAL_CLK>; + assigned-clock-rates = <960000>; + }; + }; +}; |