xref: /linux/Documentation/devicetree/bindings/sound/fsl,xcvr.yaml (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
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      - fsl,imx95-xcvr
26
27  reg:
28    items:
29      - description: 20K RAM for code and data
30      - description: registers space
31      - description: RX FIFO address
32      - description: TX FIFO address
33
34  reg-names:
35    items:
36      - const: ram
37      - const: regs
38      - const: rxfifo
39      - const: txfifo
40
41  interrupts:
42    items:
43      - description: WAKEUPMIX Audio XCVR Interrupt 1
44      - description: WAKEUPMIX Audio XCVR Interrupt 2
45      - description: SPDIF wakeup interrupt from PHY
46    minItems: 1
47
48  clocks:
49    items:
50      - description: Peripheral clock
51      - description: PHY clock
52      - description: SPBA clock
53      - description: PLL clock
54      - description: PLL clock source for 8kHz series
55      - description: PLL clock source for 11kHz series
56    minItems: 4
57
58  clock-names:
59    items:
60      - const: ipg
61      - const: phy
62      - const: spba
63      - const: pll_ipg
64      - const: pll8k
65      - const: pll11k
66    minItems: 4
67
68  dmas:
69    items:
70      - description: DMA controller phandle and request line for RX
71      - description: DMA controller phandle and request line for TX
72
73  dma-names:
74    items:
75      - const: rx
76      - const: tx
77
78  resets:
79    maxItems: 1
80
81required:
82  - compatible
83  - reg
84  - reg-names
85  - interrupts
86  - clocks
87  - clock-names
88  - dmas
89  - dma-names
90
91allOf:
92  - $ref: dai-common.yaml#
93  - if:
94      properties:
95        compatible:
96          contains:
97            const: fsl,imx8mp-xcvr
98    then:
99      required:
100        - resets
101
102  - if:
103      properties:
104        compatible:
105          contains:
106            enum:
107              - fsl,imx93-xcvr
108              - fsl,imx95-xcvr
109    then:
110      properties:
111        interrupts:
112          minItems: 2
113          maxItems: 2
114    else:
115      properties:
116        interrupts:
117          minItems: 3
118          maxItems: 3
119
120  - if:
121      properties:
122        compatible:
123          contains:
124            enum:
125              - fsl,imx8mp-xcvr
126              - fsl,imx93-xcvr
127    then:
128      properties:
129        clocks:
130          maxItems: 4
131        clock-names:
132          maxItems: 4
133
134unevaluatedProperties: false
135
136examples:
137  - |
138    #include <dt-bindings/interrupt-controller/arm-gic.h>
139    #include <dt-bindings/clock/imx8mp-clock.h>
140    #include <dt-bindings/reset/imx8mp-reset.h>
141
142    xcvr: xcvr@30cc0000 {
143           compatible = "fsl,imx8mp-xcvr";
144           reg = <0x30cc0000 0x800>,
145                 <0x30cc0800 0x400>,
146                 <0x30cc0c00 0x080>,
147                 <0x30cc0e00 0x080>;
148           reg-names = "ram", "regs", "rxfifo", "txfifo";
149           interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>,
150                        <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>,
151                        <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
152           clocks = <&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_IPG>,
153                    <&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_PHY>,
154                    <&audiomix_clk IMX8MP_CLK_AUDIOMIX_SPBA2_ROOT>,
155                    <&audiomix_clk IMX8MP_CLK_AUDIOMIX_AUDPLL_ROOT>;
156           clock-names = "ipg", "phy", "spba", "pll_ipg";
157           dmas = <&sdma2 30 2 0>, <&sdma2 31 2 0>;
158           dma-names = "rx", "tx";
159           resets = <&audiomix_reset 0>;
160    };
161