xref: /freebsd/sys/contrib/device-tree/Bindings/sound/renesas,idt821034.yaml (revision 525fe93dc7487a1e63a90f6a2b956abc601963c1) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/renesas,idt821034.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas IDT821034 codec device
8
9maintainers:
10  - Herve Codina <herve.codina@bootlin.com>
11
12description: |
13  The IDT821034 codec is a four channel PCM codec with onchip filters and
14  programmable gain setting.
15
16  The time-slots used by the codec must be set and so, the properties
17  'dai-tdm-slot-num', 'dai-tdm-slot-width', 'dai-tdm-slot-tx-mask' and
18  'dai-tdm-slot-rx-mask' must be present in the ALSA sound card node for
19  sub-nodes that involve the codec. The codec uses one 8bit time-slot per
20  channel.
21  'dai-tdm-tdm-slot-with' must be set to 8.
22
23  The IDT821034 codec also supports 5 gpios (SLIC signals) per channel.
24
25allOf:
26  - $ref: /schemas/spi/spi-peripheral-props.yaml#
27  - $ref: dai-common.yaml#
28
29properties:
30  compatible:
31    const: renesas,idt821034
32
33  reg:
34    description:
35      SPI device address.
36    maxItems: 1
37
38  spi-max-frequency:
39    maximum: 8192000
40
41  spi-cpha: true
42
43  '#sound-dai-cells':
44    const: 0
45
46  '#gpio-cells':
47    const: 2
48
49  gpio-controller: true
50
51required:
52  - compatible
53  - reg
54  - spi-cpha
55  - '#sound-dai-cells'
56  - gpio-controller
57  - '#gpio-cells'
58
59unevaluatedProperties: false
60
61examples:
62  - |
63    spi {
64        #address-cells = <1>;
65        #size-cells = <0>;
66        audio-codec@0 {
67            compatible = "renesas,idt821034";
68            reg = <0>;
69            spi-max-frequency = <8192000>;
70            spi-cpha;
71            #sound-dai-cells = <0>;
72            gpio-controller;
73            #gpio-cells = <2>;
74        };
75    };
76