Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / serial / cirrus,clps711x-uart.txt

diff --git a/kernel/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt b/kernel/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt
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+++ b/kernel/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt
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+* Cirrus Logic CLPS711X Universal Asynchronous Receiver/Transmitter (UART)
+
+Required properties:
+- compatible: Should be "cirrus,clps711x-uart".
+- reg: Address and length of the register set for the device.
+- interrupts: Should contain UART TX and RX interrupt.
+- clocks: Should contain UART core clock number.
+- syscon: Phandle to SYSCON node, which contain UART control bits.
+
+Optional properties:
+- {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for RTS/CTS/DTR/DSR/RI/DCD
+  line respectively.
+
+Note: Each UART port should have an alias correctly numbered
+in "aliases" node.
+
+Example:
+       aliases {
+               serial0 = &uart1;
+       };
+
+       uart1: uart@80000480 {
+               compatible = "cirrus,clps711x-uart";
+               reg = <0x80000480 0x80>;
+               interrupts = <12 13>;
+               clocks = <&clks 11>;
+               syscon = <&syscon1>;
+               cts-gpios = <&sysgpio 0 GPIO_ACTIVE_LOW>;
+               dsr-gpios = <&sysgpio 1 GPIO_ACTIVE_LOW>;
+               dcd-gpios = <&sysgpio 2 GPIO_ACTIVE_LOW>;
+       };