This patch adds device tree documentation for the Microchip MCP41xxx/42xxx family of digital potentiometers. Signed-off-by: Chris Coffey <cmc@xxxxxxxxxxxxx> --- .../bindings/iio/potentiometer/mcp41010.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/potentiometer/mcp41010.txt diff --git a/Documentation/devicetree/bindings/iio/potentiometer/mcp41010.txt b/Documentation/devicetree/bindings/iio/potentiometer/mcp41010.txt new file mode 100644 index 0000000000..17565acace --- /dev/null +++ b/Documentation/devicetree/bindings/iio/potentiometer/mcp41010.txt @@ -0,0 +1,29 @@ +* Microchip MCP41010/41050/41100/42010/42050/42100 Digital Potentiometer + driver + +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: +mcp41010: potentiometer@0 { + compatible = "mcp41010"; + reg = <0>; + spi-max-frequency = <500000>; +}; -- 2.11.0
