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This patch adds device tree documentation for the Microchip MCP41xxx/42xxx family of digital potentiometers. Signed-off-by: Chris Coffey <cmc@babblebit.net> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
29 lines
707 B
Plaintext
29 lines
707 B
Plaintext
* Microchip MCP41010/41050/41100/42010/42050/42100 Digital Potentiometer
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Datasheet publicly available at:
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http://ww1.microchip.com/downloads/en/devicedoc/11195c.pdf
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The node for this driver must be a child node of a SPI controller, hence
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all mandatory properties described in
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Documentation/devicetree/bindings/spi/spi-bus.txt
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must be specified.
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Required properties:
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- compatible: Must be one of the following, depending on the
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model:
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"microchip,mcp41010"
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"microchip,mcp41050"
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"microchip,mcp41100"
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"microchip,mcp42010"
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"microchip,mcp42050"
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"microchip,mcp42100"
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Example:
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potentiometer@0 {
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compatible = "microchip,mcp41010";
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reg = <0>;
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spi-max-frequency = <500000>;
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};
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