1 # SPDX-License-Identifier: (GPL-2.0-only OR BS
2 # Copyright (C) 2020 Texas Instruments Incorpo
3 # Author: Peter Ujfalusi <peter.ujfalusi@ti.com
4 %YAML 1.2
5 ---
6 $id: http://devicetree.org/schemas/sound/ti,j7
7 $schema: http://devicetree.org/meta-schemas/co
8
9 title: Texas Instruments J721e Common Processo
10
11 maintainers:
12 - Peter Ujfalusi <peter.ujfalusi@gmail.com>
13
14 description: |
15 The audio support on the board is using pcm3
16 serializers in parallel setup.
17 The pcm3168a SCKI clock is sourced from j721
18 In order to support 48KHz and 44.1KHz family
19 clock for AUDIO_REFCLK2 needs to be changed
20 PLL15 (for 44.1KHz). The same PLLs are used
21 different HSDIVIDER.
22
23 Clocking setup for j721e:
24 48KHz family:
25 PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK
26 |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2
27
28 44.1KHz family:
29 PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCL
30 |-> PLL15_HSDIV2 ---> AUDIO_REFCLK2
31
32 Clocking setup for j7200:
33 48KHz family:
34 PLL4 ---> PLL4_HSDIV0 ---> MCASP0_AUXCLK -
35 |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2
36
37 properties:
38 compatible:
39 enum:
40 - ti,j721e-cpb-audio
41 - ti,j7200-cpb-audio
42
43 model:
44 $ref: /schemas/types.yaml#/definitions/str
45 description: User specified audio sound ca
46
47 ti,cpb-mcasp:
48 description: phandle to McASP used on CPB
49 $ref: /schemas/types.yaml#/definitions/pha
50
51 ti,cpb-codec:
52 description: phandle to the pcm3168a codec
53 $ref: /schemas/types.yaml#/definitions/pha
54
55 clocks:
56 minItems: 4
57 maxItems: 6
58
59 clock-names:
60 minItems: 4
61 maxItems: 6
62
63 required:
64 - compatible
65 - model
66 - ti,cpb-mcasp
67 - ti,cpb-codec
68 - clocks
69 - clock-names
70
71 additionalProperties: false
72
73 allOf:
74 - if:
75 properties:
76 compatible:
77 contains:
78 const: ti,j721e-cpb-audio
79
80 then:
81 properties:
82 clocks:
83 items:
84 - description: AUXCLK clock for Mc
85 - description: Parent for CPB_McAS
86 - description: Parent for CPB_McAS
87 - description: SCKI clock for the
88 - description: Parent for CPB_SCKI
89 - description: Parent for CPB_SCKI
90
91 clock-names:
92 items:
93 - const: cpb-mcasp-auxclk
94 - const: cpb-mcasp-auxclk-48000
95 - const: cpb-mcasp-auxclk-44100
96 - const: cpb-codec-scki
97 - const: cpb-codec-scki-48000
98 - const: cpb-codec-scki-44100
99
100 - if:
101 properties:
102 compatible:
103 contains:
104 const: ti,j7200-cpb-audio
105
106 then:
107 properties:
108 clocks:
109 items:
110 - description: AUXCLK clock for Mc
111 - description: Parent for CPB_McAS
112 - description: SCKI clock for the
113 - description: Parent for CPB_SCKI
114
115 clock-names:
116 items:
117 - const: cpb-mcasp-auxclk
118 - const: cpb-mcasp-auxclk-48000
119 - const: cpb-codec-scki
120 - const: cpb-codec-scki-48000
121
122 examples:
123 - |+
124 sound {
125 compatible = "ti,j721e-cpb-audio";
126 model = "j721e-cpb";
127
128 ti,cpb-mcasp = <&mcasp10>;
129 ti,cpb-codec = <&pcm3168a_1>;
130
131 clocks = <&k3_clks 184 1>,
132 <&k3_clks 184 2>, <&k3_clks 1
133 <&k3_clks 157 371>,
134 <&k3_clks 157 400>, <&k3_clks
135 clock-names = "cpb-mcasp-auxclk",
136 "cpb-mcasp-auxclk-48000"
137 "cpb-codec-scki",
138 "cpb-codec-scki-48000",
139 };
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