diff options
Diffstat (limited to 'Documentation/devicetree/bindings/iio/dac/ad5592r.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/dac/ad5592r.txt | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/Documentation/devicetree/bindings/iio/dac/ad5592r.txt b/Documentation/devicetree/bindings/iio/dac/ad5592r.txt deleted file mode 100644 index 989f96f31c66..000000000000 --- a/Documentation/devicetree/bindings/iio/dac/ad5592r.txt +++ /dev/null @@ -1,155 +0,0 @@ -Analog Devices AD5592R/AD5593R DAC/ADC device driver - -Required properties for the AD5592R: - - compatible: Must be "adi,ad5592r" - - reg: SPI chip select number for the device - - spi-max-frequency: Max SPI frequency to use (< 30000000) - - spi-cpol: The AD5592R requires inverse clock polarity (CPOL) mode - -Required properties for the AD5593R: - - compatible: Must be "adi,ad5593r" - - reg: I2C address of the device - -Required properties for all supported chips: - - #address-cells: Should be 1. - - #size-cells: Should be 0. - - channel nodes: - Each child node represents one channel and has the following - Required properties: - * reg: Pin on which this channel is connected to. - * adi,mode: Mode or function of this channel. - Macros specifying the valid values - can be found in <dt-bindings/iio/adi,ad5592r.h>. - - The following values are currently supported: - * CH_MODE_UNUSED (the pin is unused) - * CH_MODE_ADC (the pin is ADC input) - * CH_MODE_DAC (the pin is DAC output) - * CH_MODE_DAC_AND_ADC (the pin is DAC output - but can be monitored by an ADC, since - there is no disadvantage this - this should be considered as the - preferred DAC mode) - * CH_MODE_GPIO (the pin is registered - with GPIOLIB) - Optional properties: - * adi,off-state: State of this channel when unused or the - device gets removed. Macros specifying the - valid values can be found in - <dt-bindings/iio/adi,ad5592r.h>. - - * CH_OFFSTATE_PULLDOWN (the pin is pulled down) - * CH_OFFSTATE_OUT_LOW (the pin is output low) - * CH_OFFSTATE_OUT_HIGH (the pin is output high) - * CH_OFFSTATE_OUT_TRISTATE (the pin is - tristated output) - - -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 2.5V reference is used. - - reset-gpios : GPIO spec for the RESET pin. If specified, it will be - asserted during driver probe. - - gpio-controller: Marks the device node as a GPIO controller. - - #gpio-cells: Should be 2. The first cell is the GPIO number and the second - cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. - -AD5592R Example: - - #include <dt-bindings/iio/adi,ad5592r.h> - - vref: regulator-vref { - compatible = "regulator-fixed"; - regulator-name = "vref-ad559x"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; - regulator-always-on; - }; - - ad5592r@0 { - #size-cells = <0>; - #address-cells = <1>; - #gpio-cells = <2>; - compatible = "adi,ad5592r"; - reg = <0>; - - spi-max-frequency = <1000000>; - spi-cpol; - - vref-supply = <&vref>; /* optional */ - reset-gpios = <&gpio0 86 0>; /* optional */ - gpio-controller; - - channel@0 { - reg = <0>; - adi,mode = <CH_MODE_DAC>; - }; - channel@1 { - reg = <1>; - adi,mode = <CH_MODE_ADC>; - }; - channel@2 { - reg = <2>; - adi,mode = <CH_MODE_DAC_AND_ADC>; - }; - channel@3 { - reg = <3>; - adi,mode = <CH_MODE_DAC_AND_ADC>; - adi,off-state = <CH_OFFSTATE_PULLDOWN>; - }; - channel@4 { - reg = <4>; - adi,mode = <CH_MODE_UNUSED>; - adi,off-state = <CH_OFFSTATE_PULLDOWN>; - }; - channel@5 { - reg = <5>; - adi,mode = <CH_MODE_GPIO>; - adi,off-state = <CH_OFFSTATE_PULLDOWN>; - }; - channel@6 { - reg = <6>; - adi,mode = <CH_MODE_GPIO>; - adi,off-state = <CH_OFFSTATE_PULLDOWN>; - }; - channel@7 { - reg = <7>; - adi,mode = <CH_MODE_GPIO>; - adi,off-state = <CH_OFFSTATE_PULLDOWN>; - }; - }; - -AD5593R Example: - - #include <dt-bindings/iio/adi,ad5592r.h> - - ad5593r@10 { - #size-cells = <0>; - #address-cells = <1>; - #gpio-cells = <2>; - compatible = "adi,ad5593r"; - reg = <0x10>; - gpio-controller; - - channel@0 { - reg = <0>; - adi,mode = <CH_MODE_DAC>; - adi,off-state = <CH_OFFSTATE_PULLDOWN>; - }; - channel@1 { - reg = <1>; - adi,mode = <CH_MODE_ADC>; - adi,off-state = <CH_OFFSTATE_PULLDOWN>; - }; - channel@2 { - reg = <2>; - adi,mode = <CH_MODE_DAC_AND_ADC>; - adi,off-state = <CH_OFFSTATE_PULLDOWN>; - }; - channel@6 { - reg = <6>; - adi,mode = <CH_MODE_GPIO>; - adi,off-state = <CH_OFFSTATE_PULLDOWN>; - }; - }; |