linux-kernel - [RFC v2 4/5] DT bindings documentation for Synopsys UDC platform driver

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Message-Id: <1484640308-25976-5-git-send-email-raviteja.garimella@broadcom.com>
Date:   Tue, 17 Jan 2017 13:35:07 +0530
From:   Raviteja Garimella <raviteja.garimella@...adcom.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Felipe Balbi <balbi@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com, linux-usb@...r.kernel.org
Subject: [RFC v2 4/5] DT bindings documentation for Synopsys UDC platform driver

This patch adds device tree bindings documentation for Synopsys
USB device controller platform driver.

Signed-off-by: Raviteja Garimella <raviteja.garimella@...adcom.com>
---
 .../devicetree/bindings/usb/snps,dw-ahb-udc.txt    | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/snps,dw-ahb-udc.txt

diff --git a/Documentation/devicetree/bindings/usb/snps,dw-ahb-udc.txt b/Documentation/devicetree/bindings/usb/snps,dw-ahb-udc.txt
new file mode 100644
index 0000000..0c18327
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/snps,dw-ahb-udc.txt
@@ -0,0 +1,27 @@
+Synopsys USB Device controller.
+
+The device node is used for Synopsys Designware Cores AHB
+Subsystem Device Controller (UDC).
+
+This device node is used by UDCs integrated it Broadcom's
+Northstar2 and Cygnus SoC's.
+
+Required properties:
+ - compatible: should be "snps,dw-ahb-udc"
+ - reg: Offset and length of UDC register set
+ - interrupts: description of interrupt line
+ - phys: phandle to phy node.
+ - extcon: phandle to the extcon device. This is optional and
+   not required for those that don't require extcon support.
+   Extcon support will be required if the UDC is connected to
+   a Dual Role Device Phy that supports both Host and Device
+   mode based on the external cable.
+
+Example:
+	udc_dwc: usb@...e0000 {
+		compatible = "snps,dw-ahb-udc";
+		reg = <0x664e0000 0x2000>;
+		interrupts = <GIC_SPI 424 IRQ_TYPE_LEVEL_HIGH>;
+		phys = <&usbdrd_phy>;
+		extcon = <&usbdrd_phy>";
+	};
-- 
2.1.0