xref: /linux/Documentation/devicetree/bindings/sound/fsl,xcvr.yaml (revision 41c177cf354126a22443b5c80cec9fdd313e67e1) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/fsl,xcvr.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: NXP Audio Transceiver (XCVR) Controller
8
9maintainers:
10  - Viorel Suman <viorel.suman@nxp.com>
11
12description: |
13  NXP XCVR (Audio Transceiver) is a on-chip functional module
14  that allows CPU to receive and transmit digital audio via
15  HDMI2.1 eARC, HDMI1.4 ARC and SPDIF.
16
17properties:
18  $nodename:
19    pattern: "^xcvr@.*"
20
21  compatible:
22    enum:
23      - fsl,imx8mp-xcvr
24      - fsl,imx93-xcvr
25
26  reg:
27    items:
28      - description: 20K RAM for code and data
29      - description: registers space
30      - description: RX FIFO address
31      - description: TX FIFO address
32
33  reg-names:
34    items:
35      - const: ram
36      - const: regs
37      - const: rxfifo
38      - const: txfifo
39
40  interrupts:
41    items:
42      - description: WAKEUPMIX Audio XCVR Interrupt 1
43      - description: WAKEUPMIX Audio XCVR Interrupt 2
44    minItems: 1
45
46  clocks:
47    items:
48      - description: Peripheral clock
49      - description: PHY clock
50      - description: SPBA clock
51      - description: PLL clock
52
53  clock-names:
54    items:
55      - const: ipg
56      - const: phy
57      - const: spba
58      - const: pll_ipg
59
60  dmas:
61    items:
62      - description: DMA controller phandle and request line for RX
63      - description: DMA controller phandle and request line for TX
64
65  dma-names:
66    items:
67      - const: rx
68      - const: tx
69
70  resets:
71    maxItems: 1
72
73required:
74  - compatible
75  - reg
76  - reg-names
77  - interrupts
78  - clocks
79  - clock-names
80  - dmas
81  - dma-names
82  - resets
83
84allOf:
85  - if:
86      properties:
87        compatible:
88          contains:
89            enum:
90              - fsl,imx93-xcvr
91    then:
92      properties:
93        interrupts:
94          minItems: 2
95          maxItems: 2
96    else:
97      properties:
98        interrupts:
99          maxItems: 1
100
101additionalProperties: false
102
103examples:
104  - |
105    #include <dt-bindings/interrupt-controller/arm-gic.h>
106    #include <dt-bindings/clock/imx8mp-clock.h>
107    #include <dt-bindings/reset/imx8mp-reset.h>
108
109    xcvr: xcvr@30cc0000 {
110           compatible = "fsl,imx8mp-xcvr";
111           reg = <0x30cc0000 0x800>,
112                 <0x30cc0800 0x400>,
113                 <0x30cc0c00 0x080>,
114                 <0x30cc0e00 0x080>;
115           reg-names = "ram", "regs", "rxfifo", "txfifo";
116           interrupts = <0x0 128 IRQ_TYPE_LEVEL_HIGH>;
117           clocks = <&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_IPG>,
118                    <&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_PHY>,
119                    <&audiomix_clk IMX8MP_CLK_AUDIOMIX_SPBA2_ROOT>,
120                    <&audiomix_clk IMX8MP_CLK_AUDIOMIX_AUDPLL_ROOT>;
121           clock-names = "ipg", "phy", "spba", "pll_ipg";
122           dmas = <&sdma2 30 2 0>, <&sdma2 31 2 0>;
123           dma-names = "rx", "tx";
124           resets = <&audiomix_reset 0>;
125    };
126