[PATCH 6/9] dt/bindings: Add a serial/UART attached device binding
From: Rob Herring <robh@kernel.org>
Date: 2017-01-06 16:27:29
Also in:
linux-devicetree, linux-serial, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest, tty layer and serial drivers · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
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. Signed-off-by: Rob Herring <robh@kernel.org> --- .../devicetree/bindings/serial/slave-device.txt | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/serial/slave-device.txt
diff --git a/Documentation/devicetree/bindings/serial/slave-device.txt b/Documentation/devicetree/bindings/serial/slave-device.txt
new file mode 100644
index 000000000000..9b7c2d651345
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/slave-device.txt@@ -0,0 +1,34 @@ +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. + +qSerial 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: + +- reg : A single cell representing the port/line number of the + host UART. Only used if the host UART is a single node + with multiple ports. + +Example: + +serial@1234 { + compatible = "ns16550a"; + interrupts = <1>; + + bluetooth { + compatible = "brcm,bcm43341-bt"; + interrupt-parent = <&gpio>; + interrupts = <10>; + }; +}; --
2.10.1