Re: [PATCH 1/2] dt-bindings: Add Qualcomm USB Super-Speed PHY bindings
From: Rob Herring <robh@kernel.org>
Date: 2018-12-20 17:05:35
Also in:
linux-usb, lkml
On Fri, Dec 07, 2018 at 10:55:57AM +0100, Jorge Ramirez-Ortiz wrote:
quoted hunk ↗ jump to hunk
Binding description for Qualcomm's Synopsys 1.0.0 super-speed PHY controller embedded in QCS404. Based on Sriharsha Allenki's [off-list ref] original definitions. Signed-off-by: Jorge Ramirez-Ortiz <redacted> Reviewed-by: Vinod Koul <vkoul@kernel.org> --- .../devicetree/bindings/usb/qcom,usb-ssphy.txt | 78 ++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/qcom,usb-ssphy.txtdiff --git a/Documentation/devicetree/bindings/usb/qcom,usb-ssphy.txt b/Documentation/devicetree/bindings/usb/qcom,usb-ssphy.txt new file mode 100644 index 0000000..fcf4e01 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/qcom,usb-ssphy.txt@@ -0,0 +1,78 @@ +Qualcomm Synopsys 1.0.0 SS phy controller +=========================================== + +Synopsys 1.0.0 ss phy controller supports SS usb connectivity on Qualcomm +chipsets + +Required properties: + +- compatible: + Value type: <string> + Definition: Should contain "qcom,usb-ssphy".
What is "qcom,dwc3-ss-usb-phy" which already exists then?
+
+- reg:
+ Value type: <prop-encoded-array>
+ Definition: USB PHY base address and length of the register map.
+
+- #phy-cells:
+ Value type: <u32>
+ Definition: Should be 0. See phy/phy-bindings.txt for details.
+
+- clocks:
+ Value type: <prop-encoded-array>
+ Definition: See clock-bindings.txt section "consumers". List of
+ three clock specifiers for reference, phy core and
+ pipe clocks.
+
+- clock-names:
+ Value type: <string>
+ Definition: Names of the clocks in 1-1 correspondence with the "clocks"
+ property. Must contain "ref", "phy" and "pipe".
+
+- vdd-supply:
+ Value type: <phandle>
+ Definition: phandle to the regulator VDD supply node.
+
+- vdda1p8-supply:
+ Value type: <phandle>
+ Definition: phandle to the regulator 1.8V 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 in uV.
+
+Optional child nodes:
+
+- vbus-supply:
+ Value type: <phandle>
+ Definition: phandle to the VBUS supply node.
+
+- resets:
+ Value type: <prop-encoded-array>
+ Definition: See reset.txt section "consumers". PHY reset specifiers
+ for phy core and COR resets.
+
+- reset-names:
+ Value type: <string>
+ Definition: Names of the resets in 1-1 correspondence with the "resets"
+ property. Must contain "com" and "phy".
+
+Example:
+
+usb3_phy: phy@78000 {
+ compatible = "qcom,usb-ssphy";
+ reg = <0x78000 0x400>;
+ #phy-cells = <0>;
+ clocks = <&rpmcc RPM_SMD_LN_BB_CLK>,
+ <&gcc GCC_USB_HS_PHY_CFG_AHB_CLK>,
+ <&gcc GCC_USB3_PHY_PIPE_CLK>;
+ clock-names = "ref", "phy", "pipe";
+ resets = <&gcc GCC_USB3_PHY_BCR>,
+ <&gcc GCC_USB3PHY_PHY_BCR>;
+ reset-names = "com", "phy";
+ vdd-supply = <&vreg_l3_1p05>;
+ vdda1p8-supply = <&vreg_l5_1p8>;
+ vbus-supply = <&usb3_vbus_reg>;
+ qcom,vdd-voltage-level = <0 1050000 1050000>;
+};
--
2.7.4