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
7 title: NXP LPC32XX I2S Controller
8
9 description:
10 The I2S controller in LPC32XX SoCs, ASoC DAI.
11
12 maintainers:
13 - J.M.B. Downing <jonathan.downing@nautel.com>
14 - Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com>
15
16 allOf:
17 - $ref: dai-common.yaml#
18
19 properties:
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
47 required:
48 - compatible
49 - reg
50 - interrupts
51 - clocks
52 - dmas
53 - dma-names
54 - '#sound-dai-cells'
55
56 additionalProperties: false
57
58 examples:
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 ...
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