The new Allwinner H6 SoC contains a USB3 PHY that is wired to the
external USB3 pins of the SoC.
Add a device tree binding for the PHY.
Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx>
Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx>
---
Changes in v3:
- Added Chen-Yu's Review tag.
Rob,
Although you mentioned that the supply is for the port, not the phy;
currently in USB situation "powering on the PHY" also indicates
"powering on the port" and nearly all usages of phy-supply is for Vbus.
Maybe we should change the overall phy-supply to satisfy this.
Thanks,
Icenowy
.../bindings/phy/sun50i-usb3-phy.txt | 24 +++++++++++++++++++
1 file changed, 24 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/sun50i-usb3-phy.txt
diff --git a/Documentation/devicetree/bindings/phy/sun50i-usb3-phy.txt b/Documentation/devicetree/bindings/phy/sun50i-usb3-phy.txt
new file mode 100644
index 000000000000..912d55f9f69d
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/sun50i-usb3-phy.txt
@@ -0,0 +1,24 @@
+Allwinner sun50i USB3 PHY
+-----------------------
+
+Required properties:
+- compatible : should be one of
+ * allwinner,sun60i-h6-usb3-phy
+- reg : a list of offset + length pairs
+- #phy-cells : from the generic phy bindings, must be 0
+- clocks : phandle + clock specifier for the phy clock
+- resets : phandle + reset specifier for the phy reset
+
+Optional Properties:
+- phy-supply : from the generic phy bindings, a phandle to a regulator that
+ provides power to VBUS.
+
+Example:
+ usb3phy: phy@5210000 {
+ compatible = "allwinner,sun50i-h6-usb3-phy";
+ reg = <0x5210000 0x10000>;
+ clocks = <&ccu CLK_USB_PHY1>;
+ resets = <&ccu RST_USB_PHY1>;
+ #phy-cells = <0>;
+ status = "disabled";
+ };
--
2.18.0
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