[PATCH v5 33/37] devicetree: document Ingenic SoC UART binding

[Paul Burton]

Add binding documentation for the UARTs found in Ingenic SoCs.

Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
Cc: Ian Campbell <ijc+devicetree@xxxxxxxxxxxxxx>
Cc: Kumar Gala <galak@xxxxxxxxxxxxxx>
Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Pawel Moll <pawel.moll@xxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
---

Changes in v5: None
Changes in v4: None
Changes in v3:
- Merge binding documentation for Ingenic SoCs whose bindings differ
  only by their compatible strings.

Changes in v2: None

 .../devicetree/bindings/serial/ingenic,uart.txt    | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/ingenic,uart.txt

diff --git a/Documentation/devicetree/bindings/serial/ingenic,uart.txt b/Documentation/devicetree/bindings/serial/ingenic,uart.txt
new file mode 100644
index 0000000..c2d3b3a
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/ingenic,uart.txt
@@ -0,0 +1,22 @@
+* Ingenic SoC UART
+
+Required properties:
+- compatible : "ingenic,jz4740-uart" or "ingenic,jz4780-uart"
+- reg : offset and length of the register set for the device.
+- interrupts : should contain uart interrupt.
+- clocks : phandles to the module & baud clocks.
+- clock-names: tuple listing input clock names.
+	Required elements: "baud", "module"
+
+Example:
+
+uart0: serial@10030000 {
+	compatible = "ingenic,jz4740-uart";
+	reg = <0x10030000 0x100>;
+
+	interrupt-parent = <&intc>;
+	interrupts = <9>;
+
+	clocks = <&ext>, <&cgu JZ4740_CLK_UART0>;
+	clock-names = "baud", "module";
+};
-- 
2.4.1

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