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DT/bindings: Add bindings for TI ADS7950 A/DC chips 

This adds device tree bindings for the TI ADS7950 family of A/DC chips.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
David Lechner 2017-01-11 11:52:49 -06:00 committed by Jonathan Cameron
parent e2eb179c00
commit 0287c8d24b
1 changed files with 23 additions and 0 deletions
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Documentation/devicetree/bindings/iio/adc/ti-ads7950.txt Normal file
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* Texas Instruments ADS7950 family of A/DC chips
Required properties:
- compatible: Must be one of "ti,ads7950", "ti,ads7951", "ti,ads7952",
"ti,ads7953", "ti,ads7954", "ti,ads7955", "ti,ads7956", "ti,ads7957",
"ti,ads7958", "ti,ads7959", "ti,ads7960", or "ti,ads7961"
- reg: SPI chip select number for the device
- #io-channel-cells: Must be 1 as per ../iio-bindings.txt
- vref-supply: phandle to a regulator node that supplies the 2.5V or 5V
reference voltage
Recommended properties:
- spi-max-frequency: Definition as per
Documentation/devicetree/bindings/spi/spi-bus.txt
Example:
adc@0 {
compatible = "ti,ads7957";
reg = <0>;
#io-channel-cells = <1>;
vref-supply = <&refin_supply>;
spi-max-frequency = <10000000>;
};