Commit f71b3c99 authored by Chris Coffey's avatar Chris Coffey Committed by Jonathan Cameron
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dt-bindings: iio: potentiometer: Add Microchip MCP41xxx/42xxx 



This patch adds device tree documentation for the Microchip
MCP41xxx/42xxx family of digital potentiometers.

Signed-off-by: default avatarChris Coffey <cmc@babblebit.net>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent c3d8360d

Documentation/devicetree/bindings/iio/potentiometer/mcp41010.txt

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* Microchip MCP41010/41050/41100/42010/42050/42100 Digital Potentiometer



Datasheet publicly available at:

http://ww1.microchip.com/downloads/en/devicedoc/11195c.pdf



The node for this driver must be a child node of a SPI controller, hence

all mandatory properties described in



        Documentation/devicetree/bindings/spi/spi-bus.txt



must be specified.



Required properties:

	- compatible:  	Must be one of the following, depending on the

			model:

			"microchip,mcp41010"

			"microchip,mcp41050"

			"microchip,mcp41100"

			"microchip,mcp42010"

			"microchip,mcp42050"

			"microchip,mcp42100"



Example:

potentiometer@0 {

	compatible = "microchip,mcp41010";

	reg = <0>;

	spi-max-frequency = <500000>;

};

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