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[v3,2/4] dt-bindings: Add Broadcom STB USB PHY binding document

Message ID 1498575553-19311-3-git-send-email-alcooperx@gmail.com
State Not Applicable, archived
Headers show

Commit Message

Alan Cooper June 27, 2017, 2:59 p.m. UTC 
Add DT bindings document for Broadcom STB USB PHYs

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Al Cooper <alcooperx@gmail.com>
---
 .../bindings/phy/brcm,brcmstb-usb-phy.txt          | 42 ++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
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Patch

diff --git a/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
new file mode 100644
index 0000000..bde0f5f
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
@@ -0,0 +1,42 @@ 
+Broadcom STB USB PHY
+
+Required properties:
+ - compatible: brcm,brcmstb-usb-phy
+ - reg: two offset and length pairs.
+	The first pair specifies a manditory set of memory mapped
+	registers used for general control of the PHY.
+	The second pair specifies optional registers used by some of
+	the SoCs that support USB 3.x
+ - #phy-cells: Shall be 1 as it expects one argument for setting
+	       the type of the PHY. Possible values are:
+	       - PHY_TYPE_USB2 for USB1.1/2.0 PHY
+	       - PHY_TYPE_USB3 for USB3.x PHY
+
+Optional Properties:
+- clocks : clock phandles.
+- clock-names: String, clock name.
+- brcm,ipp: Boolean, Invert Port Power.
+  Possible values are: 0 (Don't invert), 1 (Invert)
+- brcm,ioc: Boolean, Invert Over Current detection.
+  Possible values are: 0 (Don't invert), 1 (Invert)
+- brcm,has-xhci: Boolean indicating an optional 3.x only XHCI controller.
+- brcm,has-xhci-only: Boolean indicating an XHCI controller that supports
+  1.1, 2.0 and 3.0 devices
+- dr_mode: String, PHY Device mode.
+  Possible values are: "host", "peripheral ", "drd" or "typec-pd"
+  If this property is not defined, the phy will default to "host" mode.
+
+Example:
+
+usbphy_0: usb-phy@f0470200 {
+	reg = <0xf0470200 0xb8>,
+		<0xf0471940 0x6c0>;
+	compatible = "brcm,brcmstb-usb-phy";
+	#phy-cells = <1>;
+	dr_mode = "host"
+	brcm,ioc = <1>;
+	brcm,ipp = <1>;
+	brcm,has-xhci;
+	clocks = <&usb20>, <&usb30>;
+	clock-names = "sw_usb", "sw_usb3";
+};