This patch adds binding doc info for generic ULPI PHYs
platform driver.
Signed-off-by: Subbaraya Sundeep Bhatta <sbhatta@xxxxxxxxxx>
---
.../devicetree/bindings/usb/ulpi-platform-phy.txt | 34 ++++++++++++++++++++
1 files changed, 34 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/ulpi-platform-phy.txt
diff --git a/Documentation/devicetree/bindings/usb/ulpi-platform-phy.txt b/Documentation/devicetree/bindings/usb/ulpi-platform-phy.txt
new file mode 100644
index 0000000..7b8cbb4
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ulpi-platform-phy.txt
@@ -0,0 +1,34 @@
+Platform driver for generic ULPI PHYs
+
+Required properties:
+- compatible : Should be "ulpi-phy"
+- reg : Physical base address and size of the USB
+ controller registers map to which this PHY
+ is connected.
+- view-port : Should contain viewport register offset of the
+ USB controller to which this PHY is connected
+Optional properties:
+- drv-vbus : required if turning VBUS on/off has to be driven
+ by writing to PHY. This feature depends on board
+ design.
+
+Example:
+Below example shows the PHY binding for Chipidea USB controller which has
+ulpi viewport register at 0x0170
+
+ usb_phy0: phy0 {
+ compatible = "ulpi-phy";
+ reg = <0xe0002000 0x1000>;
+ view-port = <0x0170>;
+ drv-vbus;
+ };
+
+ usb0: usb@e0002000 {
+ compatible = "chipidea,usb2";
+ interrupt-parent = <&intc>;
+ interrupts = <0 21 4>;
+ reg = <0xe0002000 0x1000>;
+ phy_type = "ulpi";
+ dr_mode = "host";
+ usb-phy = <&usb_phy0>;
+ };
--
1.7.1
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