linux-kernel - [PATCH 01/18] dt-bindings: phy: tegra-xusb: Add usb-role-switch

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Date:   Fri, 6 Dec 2019 16:20:04 +0530
From:   Nagarjuna Kristam <nkristam@...dia.com>
To:     <balbi@...nel.org>, <gregkh@...uxfoundation.org>,
        <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <mark.rutland@....com>, <robh+dt@...nel.org>, <kishon@...com>
CC:     <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Nagarjuna Kristam <nkristam@...dia.com>
Subject: [PATCH 01/18] dt-bindings: phy: tegra-xusb: Add usb-role-switch

Add usb-role-switch property for Tegra210 and Tegra186 platforms. This
entry is used by XUSB pad controller driver to register for role changes
for OTG/Peripheral capable USB 2 ports.

Signed-off-by: Nagarjuna Kristam <nkristam@...dia.com>
---
 Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt b/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt
index 9fb682e..0f19ed6 100644
--- a/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt
+++ b/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt
@@ -179,6 +179,10 @@ Optional properties:
   is internal. In the absence of this property the port is considered to be
   external.
 - vbus-supply: phandle to a regulator supplying the VBUS voltage.
+- usb-role-switch: boolean property to indicate use of USB Role Switch.
+  This property is MUST for OTG,Peripheral capable USB 2 ports. Connector
+  should be added as subnode, see connector.txt. vbus-gpio in connector is
+  Mandatory.
 
 ULPI ports:
 -----------
-- 
2.7.4