1 * Analog Device AD5755 IIO Multi-Channel DAC Linux Driver
4 - compatible: Has to contain one of the following:
11 - reg: spi chip select number for the device
12 - spi-cpha or spi-cpol: is the only modes that is supported
14 Recommended properties:
15 - spi-max-frequency: Definition as per
16 Documentation/devicetree/bindings/spi/spi-bus.txt
19 See include/dt-bindings/iio/ad5755.h
20 - adi,ext-dc-dc-compenstation-resistor: boolean set if the hardware have an
21 external resistor and thereby bypasses
22 the internal compensation resistor.
24 Valid values for DC DC Phase control is:
25 0: All dc-to-dc converters clock on the same edge.
26 1: Channel A and Channel B clock on the same edge,
27 Channel C and Channel D clock on opposite edges.
28 2: Channel A and Channel C clock on the same edge,
29 Channel B and Channel D clock on opposite edges.
30 3: Channel A, Channel B, Channel C, and Channel D
31 clock 90 degrees out of phase from each other.
33 Valid values for DC DC frequency is [Hz]:
37 - adi,dc-dc-max-microvolt:
38 Valid values for the maximum allowed Vboost voltage supplied by
39 the dc-to-dc converter is:
45 Optional for every channel:
47 Valid values for DAC modes is:
48 0: 0 V to 5 V voltage range.
49 1: 0 V to 10 V voltage range.
50 2: Plus minus 5 V voltage range.
51 3: Plus minus 10 V voltage range.
52 4: 4 mA to 20 mA current range.
53 5: 0 mA to 20 mA current range.
54 6: 0 mA to 24 mA current range.
55 - adi,ext-current-sense-resistor: boolean set if the hardware a external
56 current sense resistor.
57 - adi,enable-voltage-overrange: boolean enable voltage overrange
58 - adi,slew: Array of slewrate settings should contain 3 fields:
59 1: Should be either 0 or 1 in order to enable or disable slewrate.
60 2: Slew rate settings:
61 Valid values for the slew rate update frequency:
79 Valid values for the step size LSBs:
93 compatible = "adi,ad5755";
95 spi-max-frequency = <1000000>;
97 adi,dc-dc-phase = <0>;
98 adi,dc-dc-freq-hz = <410000>;
99 adi,dc-dc-max-microvolt = <23000000>;
103 adi,ext-current-sense-resistor;
104 adi,slew = <0 64000 1>;
109 adi,ext-current-sense-resistor;
110 adi,slew = <0 64000 1>;
115 adi,ext-current-sense-resistor;
116 adi,slew = <0 64000 1>;
121 adi,ext-current-sense-resistor;
122 adi,slew = <0 64000 1>;