1 # SPDX-License-Identifier: (GPL-2.0-only OR BS
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/fsl,e
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Freescale Enhanced Serial Audio Interfa
8
9 maintainers:
10 - Shengjiu Wang <shengjiu.wang@nxp.com>
11 - Frank Li <Frank.Li@nxp.com>
12
13 description:
14 The Enhanced Serial Audio Interface (ESAI) p
15 for serial communication with a variety of s
16 standard codecs, Sony/Phillips Digital Inter
17 other DSPs. It has up to six transmitters an
18
19 properties:
20 compatible:
21 enum:
22 - fsl,imx35-esai
23 - fsl,imx6ull-esai
24 - fsl,imx8qm-esai
25 - fsl,vf610-esai
26
27 reg:
28 maxItems: 1
29
30 interrupts:
31 maxItems: 1
32
33 clocks:
34 minItems: 3
35 items:
36 - description:
37 The core clock used to access regist
38 - description:
39 The esai baud clock for esai control
40 derive HCK, SCK and FS.
41 - description:
42 The system clock derived from ahb cl
43 derive HCK, SCK and FS.
44 - description:
45 The spba clock is required when ESAI
46 bus slave of the Shared Peripheral B
47 or more bus masters (CPU, DMA or DSP
48 it. This property is optional depend
49 design.
50
51 clock-names:
52 minItems: 3
53 items:
54 - const: core
55 - const: extal
56 - const: fsys
57 - const: spba
58
59 dmas:
60 minItems: 2
61 maxItems: 2
62
63 dma-names:
64 items:
65 - const: rx
66 - const: tx
67
68 fsl,fifo-depth:
69 $ref: /schemas/types.yaml#/definitions/uin
70 default: 64
71 description:
72 The number of elements in the transmit a
73 FIFOs. This number is the maximum allowe
74 TFCR[TFWM] or RFCR[RFWM].
75
76 fsl,esai-synchronous:
77 $ref: /schemas/types.yaml#/definitions/fla
78 description:
79 This is a boolean property. If present,
80 that ESAI would work in the synchronous
81 means all the settings for Receiving wou
82 duplicated from Transmission related reg
83
84 big-endian:
85 $ref: /schemas/types.yaml#/definitions/fla
86 description:
87 If this property is absent, the native e
88 will be in use as default, or the big en
89 will be in use for all the device regist
90
91 required:
92 - compatible
93 - reg
94 - interrupts
95 - clocks
96 - clock-names
97 - dmas
98 - dma-names
99
100 unevaluatedProperties: false
101
102 allOf:
103 - $ref: dai-common.yaml#
104
105 examples:
106 - |
107 esai@2024000 {
108 compatible = "fsl,imx35-esai";
109 reg = <0x02024000 0x4000>;
110 interrupts = <0 51 0x04>;
111 clocks = <&clks 208>, <&clks 118>, <&clk
112 clock-names = "core", "extal", "fsys";
113 dmas = <&sdma 23 21 0>, <&sdma 24 21 0>;
114 dma-names = "rx", "tx";
115 fsl,fifo-depth = <128>;
116 fsl,esai-synchronous;
117 big-endian;
118 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.