[PATCHv2 4/4] dt-bindings: serial: Add binding for uartlite

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From: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxxxxx>

Add binding doc for uartlite

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxxxxx>
---
v2:
lowercase for hex values
interrupt description updated
squashed the clock changes

 .../bindings/serial/xlnx,opb-uartlite.txt          | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/xlnx,opb-uartlite.txt

diff --git a/Documentation/devicetree/bindings/serial/xlnx,opb-uartlite.txt b/Documentation/devicetree/bindings/serial/xlnx,opb-uartlite.txt
new file mode 100644
index 0000000..52719b9
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/xlnx,opb-uartlite.txt
@@ -0,0 +1,23 @@
+Xilinx Axi Uartlite controller Device Tree Bindings
+---------------------------------------------------------
+
+Required properties:
+- compatible		: Can be either of
+				"xlnx,xps-uartlite-1.00.a"
+				"xlnx,opb-uartlite-1.00.b"
+- reg			: Physical base address and size of the Axi Uartlite
+			  registers map.
+- interrupts		: Should contain UART controller interrupts.
+
+Optional properties:
+- port-number		: Set Uart port number
+- clock-names		: Should be "s_axi_aclk"
+- clocks		: Input clock specifier. Refer to common clock bindings.
+
+Example:
+serial@800c0000 {
+	compatible = "xlnx,xps-uartlite-1.00.a";
+	reg = <0x0 0x800c0000 0x10000>;
+	interrupts = <0x0 0x6e 0x1>;
+	port-number = <0>;
+};
-- 
2.7.4

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