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Commit c1c98dad authored by Rob Herring's avatar Rob Herring Committed by Greg Kroah-Hartman
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dt/bindings: Add a serial/UART attached device binding 



Add a common binding for describing serial/UART attached devices. Common
examples are Bluetooth, WiFi, NFC and GPS devices.

Serial attached devices are represented as child nodes of a UART node.
This may need to be extended for more complex devices with multiple
interfaces, but for the simple cases a child node is sufficient.

Tested-By: default avatarSebastian Reichel <sre@kernel.org>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c3485ee0

Documentation/devicetree/bindings/serial/slave-device.txt

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Serial Slave Device DT binding



This documents the binding structure and common properties for serial

attached devices. Common examples include Bluetooth, WiFi, NFC and GPS

devices.



Serial attached devices shall be a child node of the host UART device the

slave device is attached to. It is expected that the attached device is

the only child node of the UART device. The slave device node name shall

reflect the generic type of device for the node.



Required Properties:



- compatible 	: A string reflecting the vendor and specific device the node

		  represents.



Optional Properties:



- max-speed	: The maximum baud rate the device operates at. This should

		  only be present if the maximum is less than the slave device

		  can support. For example, a particular board has some signal

		  quality issue or the host processor can't support higher

		  baud rates.



Example:



serial@1234 {

	compatible = "ns16550a";

	interrupts = <1>;



	bluetooth {

		compatible = "brcm,bcm43341-bt";

		interrupt-parent = <&gpio>;

		interrupts = <10>;

	};

};