diff options
Diffstat (limited to 'dts/Bindings/iio/dac/dpot-dac.txt')
| -rw-r--r-- | dts/Bindings/iio/dac/dpot-dac.txt | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/dts/Bindings/iio/dac/dpot-dac.txt b/dts/Bindings/iio/dac/dpot-dac.txt deleted file mode 100644 index fdf47a01bf..0000000000 --- a/dts/Bindings/iio/dac/dpot-dac.txt +++ /dev/null @@ -1,41 +0,0 @@ -Bindings for DAC emulation using a digital potentiometer - -It is assumed that the dpot is used as a voltage divider between the -current dpot wiper setting and the maximum resistance of the dpot. The -divided voltage is provided by a vref regulator. - - .------. - .-----------. | | - | vref |--' .---. - | regulator |--. | | - '-----------' | | d | - | | p | - | | o | wiper - | | t |<---------+ - | | | - | '---' dac output voltage - | | - '------+------------+ - -Required properties: -- compatible: Should be "dpot-dac" -- vref-supply: The regulator supplying the voltage divider. -- io-channels: Channel node of the dpot to be used for the voltage division. -- io-channel-names: Should be "dpot". - -Example: - - &i2c { - dpot: mcp4651-503@28 { - compatible = "microchip,mcp4651-503"; - reg = <0x28>; - #io-channel-cells = <1>; - }; - }; - - dac { - compatible = "dpot-dac"; - vref-supply = <®_3v3>; - io-channels = <&dpot 0>; - io-channel-names = "dpot"; - }; |