iio/adc/adi%2Cad7606.yaml

1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Michael Hennerich <michael.hennerich@analog.com>
14   https://www.analog.com/media/en/technical-documentation/data-sheets/AD7605-4.pdf
15   https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606_7606-6_7606-4.pdf
16   https://www.analog.com/media/en/technical-documentation/data-sheets/AD7606B.pdf
17   https://www.analog.com/media/en/technical-documentation/data-sheets/AD7616.pdf
22       - adi,ad7605-4
23       - adi,ad7606-4
24       - adi,ad7606-6
25       - adi,ad7606-8  # Referred to as AD7606 (without -8) in the datasheet
26       - adi,ad7606b
27       - adi,ad7616
32   spi-cpha: true
34   spi-cpol: true
36   avcc-supply: true
38   vdrive-supply:
40       Determines the voltage level at which the interface logic pins will
43   refin-supply:
53   adi,conversion-start-gpios:
57       is active high, it should be marked GPIO_ACTIVE_HIGH.
61   reset-gpios:
65       high, it should be marked GPIO_ACTIVE_HIGH. On the AD7616, as the line is
69   standby-gpios:
72       place the AD7606 into one of two power-down modes, Standby mode or
77   adi,first-data-gpios:
81       the parallel, byte or serial interface. As the line is active high, it
85   adi,range-gpios:
89       is tied to a logic high, the analog input range is ±10V for all channels.
91       is ±5V for all channels. As the line is active high, it should be marked
93       tied to a logic high, software mode is enabled, otherwise one of the 3
98   adi,oversampling-ratio-gpios:
100       Must be the device tree identifier of the over-sampling mode pins. As the
101       line is active high, it should be marked GPIO_ACTIVE_HIGH. On the AD7606X
102       parts that support it, if all 3 pins are tied to a logic high, software
106   adi,sw-mode:
109       It is enabled when all three oversampling mode pins are connected to high
110       level for the AD7606B, or both the range selection are connected to high
111       level for the AD7616. The device is configured by the corresponding
112       registers. If the adi,oversampling-ratio-gpios property is defined, then
113       the driver will set the oversampling gpios to high. Otherwise, it is
118   - compatible
119   - reg
120   - spi-cpha
121   - avcc-supply
122   - vdrive-supply
123   - interrupts
124   - adi,conversion-start-gpios
127   - $ref: /schemas/spi/spi-peripheral-props.yaml#
129   - if:
136         adi,first-data-gpios: false
137         standby-gpios: false
138         adi,range-gpios:
142         adi,range-gpios:
145   - if:
150               - adi,ad7605-4
151               - adi,ad7616
154         adi,oversampling-ratio-gpios: false
156   - if:
161               - adi,ad7605-4
162               - adi,ad7606-4
163               - adi,ad7606-6
164               - adi,ad7606-8
167         adi,sw-mode: false
170         adi,conversion-start-gpios:
176   - |
177     #include <dt-bindings/gpio/gpio.h>
178     #include <dt-bindings/interrupt-controller/irq.h>
180         #address-cells = <1>;
181         #size-cells = <0>;
184             compatible = "adi,ad7606-8";
186             spi-max-frequency = <1000000>;
187             spi-cpol;
188             spi-cpha;
190             avcc-supply = <&adc_vref>;
191             vdrive-supply = <&vdd_supply>;
194             interrupt-parent = <&gpio>;
196             adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
197             reset-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
198             adi,first-data-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
199             adi,oversampling-ratio-gpios = <&gpio 18 GPIO_ACTIVE_HIGH>,
202             standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>;