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dt-bindings: serial: Add Milbeaut serial driver description 

Add DT bindings document for Milbeaut serial driver.

Signed-off-by: Sugaya Taichi <sugaya.taichi@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sugaya Taichi 2019-02-20 16:44:37 +09:00 committed by Greg Kroah-Hartman
parent f4817843e3
commit 0e585aabc5
1 changed files with 21 additions and 0 deletions
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Documentation/devicetree/bindings/serial/milbeaut-uart.txt Normal file
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Socionext Milbeaut UART controller
Required properties:
- compatible: should be "socionext,milbeaut-usio-uart".
- reg: offset and length of the register set for the device.
- interrupts: two interrupts specifier.
- interrupt-names: should be "rx", "tx".
- clocks: phandle to the input clock.
Optional properties:
- auto-flow-control: flow control enable.
Example:
usio1: usio_uart@1e700010 {
compatible = "socionext,milbeaut-usio-uart";
reg = <0x1e700010 0x10>;
interrupts = <0 141 0x4>, <0 149 0x4>;
interrupt-names = "rx", "tx";
clocks = <&clk 2>;
auto-flow-control;
};