1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/sound/ti,j721e-cpb-ivi-audio.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Texas Instruments J721e Common Processor Board Audio Support 8 9maintainers: 10 - Peter Ujfalusi <peter.ujfalusi@ti.com> 11 12description: | 13 The Infotainment board plugs into the Common Processor Board, the support of the 14 extension board is extending the CPB audio support, decribed in: 15 sound/ti,j721e-cpb-audio.txt 16 17 The audio support on the Infotainment Expansion Board consists of McASP0 18 connected to two pcm3168a codecs with dedicated set of serializers to each. 19 The SCKI for pcm3168a is sourced from j721e AUDIO_REFCLK0 pin. 20 21 In order to support 48KHz and 44.1KHz family of sampling rates the parent clock 22 for AUDIO_REFCLK0 needs to be changed between PLL4 (for 48KHz) and PLL15 (for 23 44.1KHz). The same PLLs are used for McASP0's AUXCLK clock via different 24 HSDIVIDER. 25 26 Note: the same PLL4 and PLL15 is used by the audio support on the CPB! 27 28 Clocking setup for 48KHz family: 29 PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk 30 | |-> MCASP0_AUXCLK ---> McASP0.auxclk 31 | 32 |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI 33 |-> AUDIO_REFCLK0 ---> pcm3168a_a/b.SCKI 34 35 Clocking setup for 44.1KHz family: 36 PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk 37 | |-> MCASP0_AUXCLK ---> McASP0.auxclk 38 | 39 |-> PLL15_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI 40 |-> AUDIO_REFCLK0 ---> pcm3168a_a/b.SCKI 41 42properties: 43 compatible: 44 items: 45 - const: ti,j721e-cpb-ivi-audio 46 47 model: 48 $ref: /schemas/types.yaml#/definitions/string 49 description: User specified audio sound card name 50 51 ti,cpb-mcasp: 52 description: phandle to McASP used on CPB 53 $ref: /schemas/types.yaml#/definitions/phandle 54 55 ti,cpb-codec: 56 description: phandle to the pcm3168a codec used on the CPB 57 $ref: /schemas/types.yaml#/definitions/phandle 58 59 ti,ivi-mcasp: 60 description: phandle to McASP used on IVI 61 $ref: /schemas/types.yaml#/definitions/phandle 62 63 ti,ivi-codec-a: 64 description: phandle to the pcm3168a-A codec on the expansion board 65 $ref: /schemas/types.yaml#/definitions/phandle 66 67 ti,ivi-codec-b: 68 description: phandle to the pcm3168a-B codec on the expansion board 69 $ref: /schemas/types.yaml#/definitions/phandle 70 71 clocks: 72 items: 73 - description: AUXCLK clock for McASP used by CPB audio 74 - description: Parent for CPB_McASP auxclk (for 48KHz) 75 - description: Parent for CPB_McASP auxclk (for 44.1KHz) 76 - description: SCKI clock for the pcm3168a codec on CPB 77 - description: Parent for CPB_SCKI clock (for 48KHz) 78 - description: Parent for CPB_SCKI clock (for 44.1KHz) 79 - description: AUXCLK clock for McASP used by IVI audio 80 - description: Parent for IVI_McASP auxclk (for 48KHz) 81 - description: Parent for IVI_McASP auxclk (for 44.1KHz) 82 - description: SCKI clock for the pcm3168a codec on IVI 83 - description: Parent for IVI_SCKI clock (for 48KHz) 84 - description: Parent for IVI_SCKI clock (for 44.1KHz) 85 86 clock-names: 87 items: 88 - const: cpb-mcasp-auxclk 89 - const: cpb-mcasp-auxclk-48000 90 - const: cpb-mcasp-auxclk-44100 91 - const: cpb-codec-scki 92 - const: cpb-codec-scki-48000 93 - const: cpb-codec-scki-44100 94 - const: ivi-mcasp-auxclk 95 - const: ivi-mcasp-auxclk-48000 96 - const: ivi-mcasp-auxclk-44100 97 - const: ivi-codec-scki 98 - const: ivi-codec-scki-48000 99 - const: ivi-codec-scki-44100 100 101required: 102 - compatible 103 - model 104 - ti,cpb-mcasp 105 - ti,cpb-codec 106 - ti,ivi-mcasp 107 - ti,ivi-codec-a 108 - ti,ivi-codec-b 109 - clocks 110 - clock-names 111 112additionalProperties: false 113 114examples: 115 - |+ 116 sound { 117 compatible = "ti,j721e-cpb-ivi-audio"; 118 model = "j721e-cpb-ivi"; 119 120 status = "okay"; 121 122 ti,cpb-mcasp = <&mcasp10>; 123 ti,cpb-codec = <&pcm3168a_1>; 124 125 ti,ivi-mcasp = <&mcasp0>; 126 ti,ivi-codec-a = <&pcm3168a_a>; 127 ti,ivi-codec-b = <&pcm3168a_b>; 128 129 clocks = <&k3_clks 184 1>, 130 <&k3_clks 184 2>, <&k3_clks 184 4>, 131 <&k3_clks 157 371>, 132 <&k3_clks 157 400>, <&k3_clks 157 401>, 133 <&k3_clks 174 1>, 134 <&k3_clks 174 2>, <&k3_clks 174 4>, 135 <&k3_clks 157 301>, 136 <&k3_clks 157 330>, <&k3_clks 157 331>; 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 "ivi-mcasp-auxclk", 142 "ivi-mcasp-auxclk-48000", "ivi-mcasp-auxclk-44100", 143 "ivi-codec-scki", 144 "ivi-codec-scki-48000", "ivi-codec-scki-44100"; 145 }; 146