[Patch V5 01/21] dt-bindings: phy: tegra-xusb: Add usb-role-switch

Nagarjuna Kristam
2020-02-10T08:12:29Z

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@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
---
V5:
- No changes.
---
V3-V4:
- Added Acked-by updates to commit message.
---
V2:
- Moved usb-role-switch to seperate Required section as suggested by Thierry.
- Added reference to usb/usb-conn-gpio.txt for connector subnode.
---
.../devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt | 6 ++++++
1 file changed, 6 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..23bf354 100644
--- a/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt
+++ b/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt
@@ -174,6 +174,12 @@ Required properties:
- "device": for USB device mode
- "otg": for USB OTG mode

+Required properties for OTG/Peripheral capable USB2 ports:
+- usb-role-switch: Boolean property to indicate that the port support OTG or
+ peripheral mode. If present, the port supports switching between USB host
+ and peripheral roles. Connector should be added as subnode.
+ See usb/usb-conn-gpio.txt.
+
Optional properties:
- nvidia,internal: A boolean property whose presence determines that a port
is internal. In the absence of this property the port is considered to be
--
2.7.4