xref: /linux/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml (revision ffc9841d5200a484ea0ecc645157b4d7b873f3a6) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2# Copyright 2020 Intel Corporation
3%YAML 1.2
4---
5$id: http://devicetree.org/schemas/sound/intel,keembay-i2s.yaml#
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: Intel KeemBay I2S Device Tree Bindings
9
10maintainers:
11  - Sia, Jee Heng <jee.heng.sia@intel.com>
12
13description: |
14 Intel KeemBay I2S
15
16properties:
17  compatible:
18    enum:
19      - intel,keembay-i2s
20      - intel,keembay-tdm
21      - intel,keembay-hdmi-i2s
22
23  "#sound-dai-cells":
24    const: 0
25
26  reg:
27    items:
28      - description: I2S registers
29      - description: I2S gen configuration
30
31  reg-names:
32    items:
33      - const: i2s-regs
34      - const: i2s_gen_cfg
35
36  interrupts:
37    maxItems: 1
38
39  clocks:
40    items:
41      - description: Bus Clock
42      - description: Module Clock
43
44  clock-names:
45    items:
46      - const: osc
47      - const: apb_clk
48
49  dmas:
50    items:
51      - description: DMA TX channel
52      - description: DMA RX channel
53
54  dma-names:
55    items:
56      - const: tx
57      - const: rx
58
59required:
60  - compatible
61  - "#sound-dai-cells"
62  - reg
63  - clocks
64  - clock-names
65  - interrupts
66
67additionalProperties: false
68
69examples:
70  - |
71     #include <dt-bindings/interrupt-controller/arm-gic.h>
72     #include <dt-bindings/interrupt-controller/irq.h>
73     #define KEEM_BAY_PSS_AUX_I2S3
74     #define KEEM_BAY_PSS_I2S3
75     i2s3: i2s@20140000 {
76         compatible = "intel,keembay-i2s";
77         #sound-dai-cells = <0>;
78         reg = <0x20140000 0x200>, /* I2S registers */
79               <0x202a00a4 0x4>; /* I2S gen configuration */
80         reg-names = "i2s-regs", "i2s_gen_cfg";
81         interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
82         clock-names = "osc", "apb_clk";
83         clocks = <&scmi_clk KEEM_BAY_PSS_AUX_I2S3>, <&scmi_clk KEEM_BAY_PSS_I2S3>;
84         dmas = <&axi_dma0 29>, <&axi_dma0 33>;
85         dma-names = "tx", "rx";
86     };
87