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8142500e PU |
1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
2 | %YAML 1.2 | |
3 | --- | |
4 | $id: http://devicetree.org/schemas/sound/ti,j721e-cpb-audio.yaml# | |
5 | $schema: http://devicetree.org/meta-schemas/core.yaml# | |
6 | ||
7 | title: Texas Instruments J721e Common Processor Board Audio Support | |
8 | ||
9 | maintainers: | |
10 | - Peter Ujfalusi <peter.ujfalusi@ti.com> | |
11 | ||
12 | description: | | |
13 | The audio support on the board is using pcm3168a codec connected to McASP10 | |
14 | serializers in parallel setup. | |
15 | The pcm3168a SCKI clock is sourced from j721e AUDIO_REFCLK2 pin. | |
16 | In order to support 48KHz and 44.1KHz family of sampling rates the parent | |
17 | clock for AUDIO_REFCLK2 needs to be changed between PLL4 (for 48KHz) and | |
18 | PLL15 (for 44.1KHz). The same PLLs are used for McASP10's AUXCLK clock via | |
19 | different HSDIVIDER. | |
20 | ||
18790b1b PU |
21 | Clocking setup for j721e: |
22 | 48KHz family: | |
23 | PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk | |
24 | |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI | |
8142500e | 25 | |
18790b1b PU |
26 | 44.1KHz family: |
27 | PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk | |
28 | |-> PLL15_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI | |
29 | ||
30 | Clocking setup for j7200: | |
31 | 48KHz family: | |
32 | PLL4 ---> PLL4_HSDIV0 ---> MCASP0_AUXCLK ---> McASP0.auxclk | |
33 | |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI | |
8142500e PU |
34 | |
35 | properties: | |
36 | compatible: | |
18790b1b PU |
37 | enum: |
38 | - ti,j721e-cpb-audio | |
39 | - ti,j7200-cpb-audio | |
8142500e PU |
40 | |
41 | model: | |
42 | $ref: /schemas/types.yaml#/definitions/string | |
43 | description: User specified audio sound card name | |
44 | ||
45 | ti,cpb-mcasp: | |
46 | description: phandle to McASP used on CPB | |
5f0b06da | 47 | $ref: /schemas/types.yaml#/definitions/phandle |
8142500e PU |
48 | |
49 | ti,cpb-codec: | |
50 | description: phandle to the pcm3168a codec used on the CPB | |
5f0b06da | 51 | $ref: /schemas/types.yaml#/definitions/phandle |
8142500e PU |
52 | |
53 | clocks: | |
18790b1b PU |
54 | minItems: 4 |
55 | maxItems: 6 | |
8142500e PU |
56 | |
57 | clock-names: | |
18790b1b PU |
58 | minItems: 4 |
59 | maxItems: 6 | |
8142500e PU |
60 | |
61 | required: | |
62 | - compatible | |
63 | - model | |
64 | - ti,cpb-mcasp | |
65 | - ti,cpb-codec | |
66 | - clocks | |
67 | - clock-names | |
68 | ||
69 | additionalProperties: false | |
70 | ||
18790b1b PU |
71 | allOf: |
72 | - if: | |
73 | properties: | |
74 | compatible: | |
75 | contains: | |
76 | const: ti,j721e-cpb-audio | |
77 | ||
78 | then: | |
79 | properties: | |
80 | clocks: | |
81 | minItems: 6 | |
82 | items: | |
83 | - description: AUXCLK clock for McASP used by CPB audio | |
84 | - description: Parent for CPB_McASP auxclk (for 48KHz) | |
85 | - description: Parent for CPB_McASP auxclk (for 44.1KHz) | |
86 | - description: SCKI clock for the pcm3168a codec on CPB | |
87 | - description: Parent for CPB_SCKI clock (for 48KHz) | |
88 | - description: Parent for CPB_SCKI clock (for 44.1KHz) | |
89 | ||
90 | clock-names: | |
91 | items: | |
92 | - const: cpb-mcasp-auxclk | |
93 | - const: cpb-mcasp-auxclk-48000 | |
94 | - const: cpb-mcasp-auxclk-44100 | |
95 | - const: cpb-codec-scki | |
96 | - const: cpb-codec-scki-48000 | |
97 | - const: cpb-codec-scki-44100 | |
98 | ||
99 | - if: | |
100 | properties: | |
101 | compatible: | |
102 | contains: | |
103 | const: ti,j7200-cpb-audio | |
104 | ||
105 | then: | |
106 | properties: | |
107 | clocks: | |
108 | maxItems: 4 | |
109 | items: | |
110 | - description: AUXCLK clock for McASP used by CPB audio | |
111 | - description: Parent for CPB_McASP auxclk (for 48KHz) | |
112 | - description: SCKI clock for the pcm3168a codec on CPB | |
113 | - description: Parent for CPB_SCKI clock (for 48KHz) | |
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 | ||
8142500e PU |
122 | examples: |
123 | - |+ | |
124 | sound { | |
125 | compatible = "ti,j721e-cpb-audio"; | |
126 | model = "j721e-cpb"; | |
127 | ||
128 | status = "okay"; | |
129 | ||
130 | ti,cpb-mcasp = <&mcasp10>; | |
131 | ti,cpb-codec = <&pcm3168a_1>; | |
132 | ||
133 | clocks = <&k3_clks 184 1>, | |
134 | <&k3_clks 184 2>, <&k3_clks 184 4>, | |
135 | <&k3_clks 157 371>, | |
136 | <&k3_clks 157 400>, <&k3_clks 157 401>; | |
137 | clock-names = "cpb-mcasp-auxclk", | |
138 | "cpb-mcasp-auxclk-48000", "cpb-mcasp-auxclk-44100", | |
139 | "cpb-codec-scki", | |
140 | "cpb-codec-scki-48000", "cpb-codec-scki-44100"; | |
141 | }; |