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Diffstat (limited to 'Documentation/devicetree/bindings/iio/potentiometer')
3 files changed, 128 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/ds1803.txt b/Documentation/devicetree/bindings/iio/potentiometer/ds1803.txt new file mode 100644 index 000000000000..df77bf552656 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/potentiometer/ds1803.txt @@ -0,0 +1,21 @@ +* Maxim Integrated DS1803 digital potentiometer driver + +The node for this driver must be a child node of a I2C controller, hence +all mandatory properties for your controller must be specified. See directory: + + Documentation/devicetree/bindings/i2c + +for more details. + +Required properties: + - compatible: Must be one of the following, depending on the + model: + "maxim,ds1803-010", + "maxim,ds1803-050", + "maxim,ds1803-100" + +Example: +ds1803: ds1803@1 { + reg = <0x28>; + compatible = "maxim,ds1803-010"; +}; diff --git a/Documentation/devicetree/bindings/iio/potentiometer/max5481.txt b/Documentation/devicetree/bindings/iio/potentiometer/max5481.txt new file mode 100644 index 000000000000..6a91b106e076 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/potentiometer/max5481.txt @@ -0,0 +1,23 @@ +* Maxim Linear-Taper Digital Potentiometer MAX5481-MAX5484 + +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: + "maxim,max5481" + "maxim,max5482" + "maxim,max5483" + "maxim,max5484" + +Example: +max548x: max548x@0 { + compatible = "maxim,max5482"; + spi-max-frequency = <7000000>; + reg = <0>; /* chip-select */ +}; 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>; +}; |