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Diffstat (limited to 'Documentation/devicetree/bindings/iio/dac/ltc2632.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/dac/ltc2632.txt | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/dac/ltc2632.txt b/Documentation/devicetree/bindings/iio/dac/ltc2632.txt new file mode 100644 index 000000000..e0d5fea33 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/ltc2632.txt @@ -0,0 +1,37 @@ +Linear Technology LTC2632 DAC device driver + +Required properties: + - compatible: Has to contain one of the following: + lltc,ltc2632-l12 + lltc,ltc2632-l10 + lltc,ltc2632-l8 + lltc,ltc2632-h12 + lltc,ltc2632-h10 + lltc,ltc2632-h8 + +Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt +apply. In particular, "reg" and "spi-max-frequency" properties must be given. + +Optional properties: + - vref-supply: Phandle to the external reference voltage supply. This should + only be set if there is an external reference voltage connected to the VREF + pin. If the property is not set the internal reference is used. + +Example: + + vref: regulator-vref { + compatible = "regulator-fixed"; + regulator-name = "vref-ltc2632"; + regulator-min-microvolt = <1250000>; + regulator-max-microvolt = <1250000>; + regulator-always-on; + }; + + spi_master { + dac: ltc2632@0 { + compatible = "lltc,ltc2632-l12"; + reg = <0>; /* CS0 */ + spi-max-frequency = <1000000>; + vref-supply = <&vref>; /* optional */ + }; + }; |