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-* Microchip Analog to Digital Converter (ADC)
-
-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:
- "mcp3001" (DEPRECATED)
- "mcp3002" (DEPRECATED)
- "mcp3004" (DEPRECATED)
- "mcp3008" (DEPRECATED)
- "mcp3201" (DEPRECATED)
- "mcp3202" (DEPRECATED)
- "mcp3204" (DEPRECATED)
- "mcp3208" (DEPRECATED)
- "mcp3301" (DEPRECATED)
-
- "microchip,mcp3001"
- "microchip,mcp3002"
- "microchip,mcp3004"
- "microchip,mcp3008"
- "microchip,mcp3201"
- "microchip,mcp3202"
- "microchip,mcp3204"
- "microchip,mcp3208"
- "microchip,mcp3301"
- "microchip,mcp3550-50"
- "microchip,mcp3550-60"
- "microchip,mcp3551"
- "microchip,mcp3553"
-
- NOTE: The use of the compatibles with no vendor prefix
- is deprecated and only listed because old DT use them.
-
- - spi-cpha, spi-cpol (boolean):
- Either SPI mode (0,0) or (1,1) must be used, so specify
- none or both of spi-cpha, spi-cpol. The MCP3550/1/3
- is more efficient in mode (1,1) as only 3 instead of
- 4 bytes need to be read from the ADC, but not all SPI
- masters support it.
-
- - vref-supply: Phandle to the external reference voltage supply.
-
-Examples:
-spi_controller {
- mcp3x0x@0 {
- compatible = "microchip,mcp3002";
- reg = <0>;
- spi-max-frequency = <1000000>;
- vref-supply = <&vref_reg>;
- };
-};