tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/spacemit,k1-i2s.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: K1 I2S controller
8
9description:
10 The I2S bus (Inter-IC sound bus) is a serial link for digital
11 audio data transfer between devices in the system.
12
13maintainers:
14 - Troy Mitchell <troy.mitchell@linux.spacemit.com>
15
16allOf:
17 - $ref: dai-common.yaml#
18
19properties:
20 compatible:
21 const: spacemit,k1-i2s
22
23 reg:
24 maxItems: 1
25
26 clocks:
27 items:
28 - description: clock for I2S sysclk
29 - description: clock for I2S bclk
30 - description: clock for I2S bus
31 - description: clock for I2S controller
32
33 clock-names:
34 items:
35 - const: sysclk
36 - const: bclk
37 - const: bus
38 - const: func
39
40 dmas:
41 minItems: 1
42 maxItems: 2
43
44 dma-names:
45 minItems: 1
46 items:
47 - const: tx
48 - const: rx
49
50 resets:
51 maxItems: 1
52
53 port:
54 $ref: audio-graph-port.yaml#
55 unevaluatedProperties: false
56
57 "#sound-dai-cells":
58 const: 0
59
60required:
61 - compatible
62 - reg
63 - clocks
64 - clock-names
65 - dmas
66 - dma-names
67 - resets
68 - "#sound-dai-cells"
69
70unevaluatedProperties: false
71
72examples:
73 - |
74 #include <dt-bindings/clock/spacemit,k1-syscon.h>
75 i2s@d4026000 {
76 compatible = "spacemit,k1-i2s";
77 reg = <0xd4026000 0x30>;
78 clocks = <&syscon_mpmu CLK_I2S_SYSCLK>,
79 <&syscon_mpmu CLK_I2S_BCLK>,
80 <&syscon_apbc CLK_SSPA0_BUS>,
81 <&syscon_apbc CLK_SSPA0>;
82 clock-names = "sysclk", "bclk", "bus", "func";
83 dmas = <&pdma0 21>, <&pdma0 22>;
84 dma-names = "tx", "rx";
85 resets = <&syscon_apbc RESET_SSPA0>;
86 #sound-dai-cells = <0>;
87 };