diff options
| author | Slawomir Stepien <sst@poczta.fm> | 2016-03-23 09:57:20 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-04-03 11:13:42 +0100 |
| commit | 22d199a53910e2b1666bf873f10779a66844c126 (patch) | |
| tree | 18bc5d925c377bad047e49d142195725b704383e /Documentation | |
| parent | 6154a108faafe5f7fe08cee933b899b013b457d9 (diff) | |
| download | linux-22d199a53910e2b1666bf873f10779a66844c126.tar.bz2 | |
iio: potentiometer: add driver for Microchip MCP413X/414X/415X/416X/423X/424X/425X/426X
The following functionalities are supported:
- write, read from volatile memory
Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/22060b.pdf
Signed-off-by: Slawomir Stepien <sst@poczta.fm>
Reviewed-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt b/Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt new file mode 100644 index 000000000000..3ccba16f7035 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt @@ -0,0 +1,84 @@ +* Microchip MCP413X/414X/415X/416X/423X/424X/425X/426X Digital Potentiometer + driver + +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,mcp4131-502" + "microchip,mcp4131-103" + "microchip,mcp4131-503" + "microchip,mcp4131-104" + "microchip,mcp4132-502" + "microchip,mcp4132-103" + "microchip,mcp4132-503" + "microchip,mcp4132-104" + "microchip,mcp4141-502" + "microchip,mcp4141-103" + "microchip,mcp4141-503" + "microchip,mcp4141-104" + "microchip,mcp4142-502" + "microchip,mcp4142-103" + "microchip,mcp4142-503" + "microchip,mcp4142-104" + "microchip,mcp4151-502" + "microchip,mcp4151-103" + "microchip,mcp4151-503" + "microchip,mcp4151-104" + "microchip,mcp4152-502" + "microchip,mcp4152-103" + "microchip,mcp4152-503" + "microchip,mcp4152-104" + "microchip,mcp4161-502" + "microchip,mcp4161-103" + "microchip,mcp4161-503" + "microchip,mcp4161-104" + "microchip,mcp4162-502" + "microchip,mcp4162-103" + "microchip,mcp4162-503" + "microchip,mcp4162-104" + "microchip,mcp4231-502" + "microchip,mcp4231-103" + "microchip,mcp4231-503" + "microchip,mcp4231-104" + "microchip,mcp4232-502" + "microchip,mcp4232-103" + "microchip,mcp4232-503" + "microchip,mcp4232-104" + "microchip,mcp4241-502" + "microchip,mcp4241-103" + "microchip,mcp4241-503" + "microchip,mcp4241-104" + "microchip,mcp4242-502" + "microchip,mcp4242-103" + "microchip,mcp4242-503" + "microchip,mcp4242-104" + "microchip,mcp4251-502" + "microchip,mcp4251-103" + "microchip,mcp4251-503" + "microchip,mcp4251-104" + "microchip,mcp4252-502" + "microchip,mcp4252-103" + "microchip,mcp4252-503" + "microchip,mcp4252-104" + "microchip,mcp4261-502" + "microchip,mcp4261-103" + "microchip,mcp4261-503" + "microchip,mcp4261-104" + "microchip,mcp4262-502" + "microchip,mcp4262-103" + "microchip,mcp4262-503" + "microchip,mcp4262-104" + +Example: +mcp4131: mcp4131@0 { + compatible = "mcp4131-502"; + reg = <0>; + spi-max-frequency = <500000>; +}; |