1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 # Copyright (C) 2020 Texas Instruments Incorpo 2 # Copyright (C) 2020 Texas Instruments Incorporated
3 # Author: Peter Ujfalusi <peter.ujfalusi@ti.com 3 # Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
4 %YAML 1.2 4 %YAML 1.2
5 --- 5 ---
6 $id: http://devicetree.org/schemas/sound/ti,j7 6 $id: http://devicetree.org/schemas/sound/ti,j721e-cpb-audio.yaml#
7 $schema: http://devicetree.org/meta-schemas/co 7 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 8
9 title: Texas Instruments J721e Common Processo 9 title: Texas Instruments J721e Common Processor Board Audio Support
10 10
11 maintainers: 11 maintainers:
12 - Peter Ujfalusi <peter.ujfalusi@gmail.com> 12 - Peter Ujfalusi <peter.ujfalusi@gmail.com>
13 13
14 description: | 14 description: |
15 The audio support on the board is using pcm3 15 The audio support on the board is using pcm3168a codec connected to McASP10
16 serializers in parallel setup. 16 serializers in parallel setup.
17 The pcm3168a SCKI clock is sourced from j721 17 The pcm3168a SCKI clock is sourced from j721e AUDIO_REFCLK2 pin.
18 In order to support 48KHz and 44.1KHz family 18 In order to support 48KHz and 44.1KHz family of sampling rates the parent
19 clock for AUDIO_REFCLK2 needs to be changed 19 clock for AUDIO_REFCLK2 needs to be changed between PLL4 (for 48KHz) and
20 PLL15 (for 44.1KHz). The same PLLs are used 20 PLL15 (for 44.1KHz). The same PLLs are used for McASP10's AUXCLK clock via
21 different HSDIVIDER. 21 different HSDIVIDER.
22 22
23 Clocking setup for j721e: 23 Clocking setup for j721e:
24 48KHz family: 24 48KHz family:
25 PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK 25 PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
26 |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 26 |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
27 27
28 44.1KHz family: 28 44.1KHz family:
29 PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCL 29 PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
30 |-> PLL15_HSDIV2 ---> AUDIO_REFCLK2 30 |-> PLL15_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
31 31
32 Clocking setup for j7200: 32 Clocking setup for j7200:
33 48KHz family: 33 48KHz family:
34 PLL4 ---> PLL4_HSDIV0 ---> MCASP0_AUXCLK - 34 PLL4 ---> PLL4_HSDIV0 ---> MCASP0_AUXCLK ---> McASP0.auxclk
35 |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 35 |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
36 36
37 properties: 37 properties:
38 compatible: 38 compatible:
39 enum: 39 enum:
40 - ti,j721e-cpb-audio 40 - ti,j721e-cpb-audio
41 - ti,j7200-cpb-audio 41 - ti,j7200-cpb-audio
42 42
43 model: 43 model:
44 $ref: /schemas/types.yaml#/definitions/str 44 $ref: /schemas/types.yaml#/definitions/string
45 description: User specified audio sound ca 45 description: User specified audio sound card name
46 46
47 ti,cpb-mcasp: 47 ti,cpb-mcasp:
48 description: phandle to McASP used on CPB 48 description: phandle to McASP used on CPB
49 $ref: /schemas/types.yaml#/definitions/pha 49 $ref: /schemas/types.yaml#/definitions/phandle
50 50
51 ti,cpb-codec: 51 ti,cpb-codec:
52 description: phandle to the pcm3168a codec 52 description: phandle to the pcm3168a codec used on the CPB
53 $ref: /schemas/types.yaml#/definitions/pha 53 $ref: /schemas/types.yaml#/definitions/phandle
54 54
55 clocks: 55 clocks:
56 minItems: 4 56 minItems: 4
57 maxItems: 6 57 maxItems: 6
58 58
59 clock-names: 59 clock-names:
60 minItems: 4 60 minItems: 4
61 maxItems: 6 61 maxItems: 6
62 62
63 required: 63 required:
64 - compatible 64 - compatible
65 - model 65 - model
66 - ti,cpb-mcasp 66 - ti,cpb-mcasp
67 - ti,cpb-codec 67 - ti,cpb-codec
68 - clocks 68 - clocks
69 - clock-names 69 - clock-names
70 70
71 additionalProperties: false 71 additionalProperties: false
72 72
73 allOf: 73 allOf:
74 - if: 74 - if:
75 properties: 75 properties:
76 compatible: 76 compatible:
77 contains: 77 contains:
78 const: ti,j721e-cpb-audio 78 const: ti,j721e-cpb-audio
79 79
80 then: 80 then:
81 properties: 81 properties:
82 clocks: 82 clocks:
83 items: 83 items:
84 - description: AUXCLK clock for Mc 84 - description: AUXCLK clock for McASP used by CPB audio
85 - description: Parent for CPB_McAS 85 - description: Parent for CPB_McASP auxclk (for 48KHz)
86 - description: Parent for CPB_McAS 86 - description: Parent for CPB_McASP auxclk (for 44.1KHz)
87 - description: SCKI clock for the 87 - description: SCKI clock for the pcm3168a codec on CPB
88 - description: Parent for CPB_SCKI 88 - description: Parent for CPB_SCKI clock (for 48KHz)
89 - description: Parent for CPB_SCKI 89 - description: Parent for CPB_SCKI clock (for 44.1KHz)
90 90
91 clock-names: 91 clock-names:
92 items: 92 items:
93 - const: cpb-mcasp-auxclk 93 - const: cpb-mcasp-auxclk
94 - const: cpb-mcasp-auxclk-48000 94 - const: cpb-mcasp-auxclk-48000
95 - const: cpb-mcasp-auxclk-44100 95 - const: cpb-mcasp-auxclk-44100
96 - const: cpb-codec-scki 96 - const: cpb-codec-scki
97 - const: cpb-codec-scki-48000 97 - const: cpb-codec-scki-48000
98 - const: cpb-codec-scki-44100 98 - const: cpb-codec-scki-44100
99 99
100 - if: 100 - if:
101 properties: 101 properties:
102 compatible: 102 compatible:
103 contains: 103 contains:
104 const: ti,j7200-cpb-audio 104 const: ti,j7200-cpb-audio
105 105
106 then: 106 then:
107 properties: 107 properties:
108 clocks: 108 clocks:
109 items: 109 items:
110 - description: AUXCLK clock for Mc 110 - description: AUXCLK clock for McASP used by CPB audio
111 - description: Parent for CPB_McAS 111 - description: Parent for CPB_McASP auxclk (for 48KHz)
112 - description: SCKI clock for the 112 - description: SCKI clock for the pcm3168a codec on CPB
113 - description: Parent for CPB_SCKI 113 - description: Parent for CPB_SCKI clock (for 48KHz)
114 114
115 clock-names: 115 clock-names:
116 items: 116 items:
117 - const: cpb-mcasp-auxclk 117 - const: cpb-mcasp-auxclk
118 - const: cpb-mcasp-auxclk-48000 118 - const: cpb-mcasp-auxclk-48000
119 - const: cpb-codec-scki 119 - const: cpb-codec-scki
120 - const: cpb-codec-scki-48000 120 - const: cpb-codec-scki-48000
121 121
122 examples: 122 examples:
123 - |+ 123 - |+
124 sound { 124 sound {
125 compatible = "ti,j721e-cpb-audio"; 125 compatible = "ti,j721e-cpb-audio";
126 model = "j721e-cpb"; 126 model = "j721e-cpb";
127 127
128 ti,cpb-mcasp = <&mcasp10>; 128 ti,cpb-mcasp = <&mcasp10>;
129 ti,cpb-codec = <&pcm3168a_1>; 129 ti,cpb-codec = <&pcm3168a_1>;
130 130
131 clocks = <&k3_clks 184 1>, 131 clocks = <&k3_clks 184 1>,
132 <&k3_clks 184 2>, <&k3_clks 1 132 <&k3_clks 184 2>, <&k3_clks 184 4>,
133 <&k3_clks 157 371>, 133 <&k3_clks 157 371>,
134 <&k3_clks 157 400>, <&k3_clks 134 <&k3_clks 157 400>, <&k3_clks 157 401>;
135 clock-names = "cpb-mcasp-auxclk", 135 clock-names = "cpb-mcasp-auxclk",
136 "cpb-mcasp-auxclk-48000" 136 "cpb-mcasp-auxclk-48000", "cpb-mcasp-auxclk-44100",
137 "cpb-codec-scki", 137 "cpb-codec-scki",
138 "cpb-codec-scki-48000", 138 "cpb-codec-scki-48000", "cpb-codec-scki-44100";
139 }; 139 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.