1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/st,stmpe-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: ADC on an STMPE multifunction device.
8
9 maintainers:
10 - Stefan Agner <stefan@agner.ch>
11
12 description:
13 This ADC forms part of an ST microelectronics STMPE multifunction device .
14 The ADC is shared with the STMPE touchscreen. As a result some ADC related
15 settings are specified in the parent node.
16 The node should be a child node of the stmpe node to which it belongs.
17
18 properties:
19 compatible:
20 const: st,stmpe-adc
21
22 st,norequest-mask:
23 $ref: /schemas/types.yaml#/definitions/uint32
24 description:
25 Bitmask specifying which ADC channels should _not_ be
26 requestable due to different usage (e.g. touch).
27
28 "#io-channel-cells":
29 const: 1
30
31 required:
32 - compatible
33
34 additionalProperties: false
35
36 examples:
37 - |
38 adc {
39 compatible = "st,stmpe-adc";
40 st,norequest-mask = <0x0f>; /* dont use ADC CH3-0 */
41 };
42 ...
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