1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/fsl,saif.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Freescale MXS Serial Audio Interface (SAIF)
8
9 maintainers:
10 - Lukasz Majewski <lukma@denx.de>
11
12 allOf:
13 - $ref: dai-common.yaml#
14
15 description:
16 The SAIF is based on I2S module that is used to communicate with audio codecs,
17 but only with half-duplex manner (i.e. it can either transmit or receive PCM
18 audio).
19
20 properties:
21 compatible:
22 const: fsl,imx28-saif
23
24 reg:
25 maxItems: 1
26
27 "#sound-dai-cells":
28 const: 0
29
30 interrupts:
31 maxItems: 1
32
33 dmas:
34 maxItems: 1
35
36 dma-names:
37 const: rx-tx
38
39 "#clock-cells":
40 description: Configure the I2S device as MCLK clock provider.
41 const: 0
42
43 clocks:
44 maxItems: 1
45
46 fsl,saif-master:
47 description: Indicate that saif is a slave and its phandle points to master
48 $ref: /schemas/types.yaml#/definitions/phandle
49
50 required:
51 - compatible
52 - reg
53 - "#sound-dai-cells"
54 - interrupts
55 - dmas
56 - dma-names
57 - clocks
58
59 unevaluatedProperties: false
60
61 examples:
62 - |
63 saif0: saif@80042000 {
64 compatible = "fsl,imx28-saif";
65 reg = <0x80042000 2000>;
66 #sound-dai-cells = <0>;
67 interrupts = <59>;
68 dmas = <&dma_apbx 4>;
69 dma-names = "rx-tx";
70 #clock-cells = <0>;
71 clocks = <&clks 53>;
72 };
73 - |
74 saif1: saif@80046000 {
75 compatible = "fsl,imx28-saif";
76 reg = <0x80046000 2000>;
77 #sound-dai-cells = <0>;
78 interrupts = <58>;
79 dmas = <&dma_apbx 5>;
80 dma-names = "rx-tx";
81 clocks = <&clks 53>;
82 fsl,saif-master = <&saif0>;
83 };
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