The of_serial bindings can be used to register a number of serial
devices. Document this binding with all of the others.
Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Jamie Iles <jamie@xxxxxxxxxxxxx>
---
.../devicetree/bindings/tty/serial/of-serial.txt | 34 ++++++++++++++++++++
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create mode 100644 Documentation/devicetree/bindings/tty/serial/of-serial.txt
diff --git a/Documentation/devicetree/bindings/tty/serial/of-serial.txt b/Documentation/devicetree/bindings/tty/serial/of-serial.txt
new file mode 100644
index 0000000..b0c52c2
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+++ b/Documentation/devicetree/bindings/tty/serial/of-serial.txt
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+* UART (Universal Asynchronous Receiver/Transmitter)
+
+Required properties:
+- compatible : one of:
+ - "ns8250"
+ - "ns16450"
+ - "ns16550a"
+ - "ns16550"
+ - "ns16750"
+ - "ns16850"
+ - "nvidia,tegra250-uart"
+ - "ibm,qpace-nwp-serial"
+ - "serial" if the port type is unknown.
+- reg : offset and length of the register set for the device.
+- interrupts : should contain uart interrupt.
+- clock-frequency : the input clock frequency for the UART.
+
+Optional properties:
+- current-speed : the current active speed of the UART.
+- reg-offset : offset to apply to the mapbase from the start of the registers.
+- reg-shift : quantity to shift the register offsets by.
+- used-by-rtas : set to indicate that the port is in use by the firmware and
+ should not be registered.
+
+Example:
+
+ uart@80230000 {
+ compatible = "ns8250";
+ device-type = "serial";
+ reg = <0x80230000 0x100>;
+ clock-frequency = <3686400>;
+ interrupts = <10>;
+ reg-shift = <2>;
+ };
--
1.7.4.1
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