1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/ti,ads1298.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Texas Instruments' ads1298 medical ADC chips
8
9 description: |
10 Datasheet at: https://www.ti.com/product/ADS1298
11 Bindings for this chip aren't complete.
12
13 maintainers:
14 - Mike Looijmans <mike.looijmans@topic.nl>
15
16 properties:
17 compatible:
18 enum:
19 - ti,ads1298
20
21 reg:
22 maxItems: 1
23
24 spi-cpha: true
25
26 reset-gpios:
27 maxItems: 1
28
29 avdd-supply:
30 description:
31 Analog power supply, voltage between AVDD and AVSS. When providing a
32 symmetric +/- 2.5V, the regulator should report 5V.
33
34 vref-supply:
35 description:
36 Optional reference voltage. If omitted, internal reference is used,
37 which is 2.4V when analog supply is below 4.4V, 4V otherwise.
38
39 clocks:
40 description: Optional 2.048 MHz external source clock on CLK pin
41 maxItems: 1
42
43 interrupts:
44 description: Interrupt on DRDY pin, triggers on falling edge
45 maxItems: 1
46
47 label: true
48
49 required:
50 - compatible
51 - reg
52 - avdd-supply
53 - interrupts
54
55 allOf:
56 - $ref: /schemas/spi/spi-peripheral-props.yaml#
57
58 unevaluatedProperties: false
59
60 examples:
61 - |
62 #include <dt-bindings/gpio/gpio.h>
63 #include <dt-bindings/interrupt-controller/irq.h>
64 spi {
65 #address-cells = <1>;
66 #size-cells = <0>;
67
68 adc@1 {
69 reg = <1>;
70 compatible = "ti,ads1298";
71 label = "ads1298-1-ecg";
72 avdd-supply = <®_iso_5v_a>;
73 clocks = <&clk_ads1298>;
74 interrupt-parent = <&gpio0>;
75 interrupts = <78 IRQ_TYPE_EDGE_FALLING>;
76 spi-max-frequency = <20000000>;
77 spi-cpha;
78 };
79 };
80 ...
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