linux-kernel - [PATCH v5 2/5] dt-bindings: phy: add binding for Allwinner USB3 PHY

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Message-Id: <20190405205736.55177-3-icenowy@aosc.io>
Date:   Sat,  6 Apr 2019 04:57:33 +0800
From:   Icenowy Zheng <icenowy@...c.io>
To:     Rob Herring <robh+dt@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...glegroups.com,
        Icenowy Zheng <icenowy@...c.io>
Subject: [PATCH v5 2/5] dt-bindings: phy: add binding for Allwinner USB3 PHY

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@...c.io>
Reviewed-by: Chen-Yu Tsai <wens@...e.org>
---
Changes in v5:
- Dropped Vbus regulator and added connector subnode.

Changes in v4:
- Changed Vbus regulator property to vbus-supply.

Changes in v3:
- Added Chen-Yu's Review tag.

No changes in v2, v1.

 .../bindings/phy/sun50i-usb3-phy.txt          | 28 +++++++++++++++++++
 1 file changed, 28 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..eeedc53e6360
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/sun50i-usb3-phy.txt
@@ -0,0 +1,28 @@
+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 nodes:
+- connector : A sub-node required for representing the connector connected
+	      to the USB PHY. See ../connector/usb-connector.txt for details.
+
+Example:
+	usb3phy: phy@...0000 {
+		compatible = "allwinner,sun50i-h6-usb3-phy";
+		reg = <0x5210000 0x10000>;
+		clocks = <&ccu CLK_USB_PHY1>;
+		resets = <&ccu RST_USB_PHY1>;
+		#phy-cells = <0>;
+
+		connector {
+			compatible = "usb-a-connector";
+			label = "USB3";
+		};
+	};
-- 
2.18.1