xref: /linux/Documentation/devicetree/bindings/sound/nxp,lpc3220-i2s.yaml (revision a3a02a52bcfcbcc4a637d4b68bf1bc391c9fad02) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/nxp,lpc3220-i2s.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: NXP LPC32XX I2S Controller
8
9description:
10  The I2S controller in LPC32XX SoCs, ASoC DAI.
11
12maintainers:
13  - J.M.B. Downing <jonathan.downing@nautel.com>
14  - Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com>
15
16allOf:
17  - $ref: dai-common.yaml#
18
19properties:
20  compatible:
21    enum:
22      - nxp,lpc3220-i2s
23
24  reg:
25    maxItems: 1
26
27  interrupts:
28    maxItems: 1
29
30  clocks:
31    items:
32      - description: input clock of the peripheral.
33
34  dmas:
35    items:
36      - description: RX DMA Channel
37      - description: TX DMA Channel
38
39  dma-names:
40    items:
41      - const: rx
42      - const: tx
43
44  "#sound-dai-cells":
45    const: 0
46
47required:
48  - compatible
49  - reg
50  - interrupts
51  - clocks
52  - dmas
53  - dma-names
54  - '#sound-dai-cells'
55
56additionalProperties: false
57
58examples:
59  - |
60    #include <dt-bindings/clock/lpc32xx-clock.h>
61    #include <dt-bindings/interrupt-controller/irq.h>
62
63    i2s@20094000 {
64      compatible = "nxp,lpc3220-i2s";
65      reg = <0x20094000 0x1000>;
66      interrupts = <22 IRQ_TYPE_LEVEL_HIGH>;
67      clocks = <&clk LPC32XX_CLK_I2S0>;
68      dmas = <&dma 0 1>, <&dma 13 1>;
69      dma-names = "rx", "tx";
70      #sound-dai-cells = <0>;
71    };
72
73...
74