projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| fa558c28 KM |
1 | Simple-Card: |
| 2 | ||
| 3 | Simple-Card specifies audio DAI connection of SoC <-> codec. | |
| 4 | ||
| 5 | Required properties: | |
| 6 | ||
| 7 | - compatible : "simple-audio-card" | |
| 8 | ||
| 9 | Optional properties: | |
| 10 | ||
| 66841345 XL |
11 | - simple-audio-card,name : User specified audio sound card name, one string |
| 12 | property. | |
| fa558c28 | 13 | - simple-audio-card,format : CPU/CODEC common audio format. |
| d4c22094 XL |
14 | "i2s", "right_j", "left_j" , "dsp_a" |
| 15 | "dsp_b", "ac97", "pdm", "msb", "lsb" | |
| 66841345 | 16 | - simple-audio-card,widgets : Please refer to widgets.txt. |
| 8c0b8230 | 17 | - simple-audio-card,routing : A list of the connections between audio components. |
| d4c22094 XL |
18 | Each entry is a pair of strings, the first being the |
| 19 | connection's sink, the second being the connection's | |
| 20 | source. | |
| 6ff62eed XL |
21 | - dai-tdm-slot-num : Please refer to tdm-slot.txt. |
| 22 | - dai-tdm-slot-width : Please refer to tdm-slot.txt. | |
| d4c22094 | 23 | |
| fa558c28 KM |
24 | Required subnodes: |
| 25 | ||
| 015f630d JFM |
26 | - simple-audio-card,dai-link : container for the CPU and CODEC sub-nodes |
| 27 | This container may be omitted when the | |
| 28 | card has only one DAI link. | |
| 29 | See the examples. | |
| 30 | ||
| fa558c28 KM |
31 | - simple-audio-card,cpu : CPU sub-node |
| 32 | - simple-audio-card,codec : CODEC sub-node | |
| 33 | ||
| 34 | Required CPU/CODEC subnodes properties: | |
| 35 | ||
| 36 | - sound-dai : phandle and port of CPU/CODEC | |
| 37 | ||
| 38 | Optional CPU/CODEC subnodes properties: | |
| 39 | ||
| 40 | - format : CPU/CODEC specific audio format if needed. | |
| 41 | see simple-audio-card,format | |
| 42 | - frame-master : bool property. add this if subnode is frame master | |
| 43 | - bitclock-master : bool property. add this if subnode is bitclock master | |
| 44 | - bitclock-inversion : bool property. add this if subnode has clock inversion | |
| 45 | - frame-inversion : bool property. add this if subnode has frame inversion | |
| 46 | - clocks / system-clock-frequency : specify subnode's clock if needed. | |
| 47 | it can be specified via "clocks" if system has | |
| 48 | clock node (= common clock), or "system-clock-frequency" | |
| 49 | (if system doens't support common clock) | |
| 50 | ||
| 46c39cae NC |
51 | Note: |
| 52 | * For 'format', 'frame-master', 'bitclock-master', 'bitclock-inversion' and | |
| 53 | 'frame-inversion', the simple card will use the settings of CODEC for both | |
| 54 | CPU and CODEC sides as we need to keep the settings identical for both ends | |
| 55 | of the link. | |
| 56 | ||
| 015f630d | 57 | Example 1 - single DAI link: |
| fa558c28 KM |
58 | |
| 59 | sound { | |
| 60 | compatible = "simple-audio-card"; | |
| 66841345 | 61 | simple-audio-card,name = "VF610-Tower-Sound-Card"; |
| fa558c28 | 62 | simple-audio-card,format = "left_j"; |
| 66841345 XL |
63 | simple-audio-card,widgets = |
| 64 | "Microphone", "Microphone Jack", | |
| 65 | "Headphone", "Headphone Jack", | |
| 66 | "Speaker", "External Speaker"; | |
| bb651b3d | 67 | simple-audio-card,routing = |
| 66841345 | 68 | "MIC_IN", "Microphone Jack", |
| d4c22094 | 69 | "Headphone Jack", "HP_OUT", |
| 66841345 | 70 | "External Speaker", "LINE_OUT"; |
| fa558c28 | 71 | |
| 6ff62eed XL |
72 | dai-tdm-slot-num = <2>; |
| 73 | dai-tdm-slot-width = <8>; | |
| 74 | ||
| fa558c28 KM |
75 | simple-audio-card,cpu { |
| 76 | sound-dai = <&sh_fsi2 0>; | |
| 77 | }; | |
| 78 | ||
| 79 | simple-audio-card,codec { | |
| 80 | sound-dai = <&ak4648>; | |
| 81 | bitclock-master; | |
| 82 | frame-master; | |
| 83 | clocks = <&osc>; | |
| 84 | }; | |
| 85 | }; | |
| 86 | ||
| 87 | &i2c0 { | |
| 88 | ak4648: ak4648@12 { | |
| 89 | #sound-dai-cells = <0>; | |
| 90 | compatible = "asahi-kasei,ak4648"; | |
| 91 | reg = <0x12>; | |
| 92 | }; | |
| 93 | }; | |
| 94 | ||
| 95 | sh_fsi2: sh_fsi2@ec230000 { | |
| 96 | #sound-dai-cells = <1>; | |
| 97 | compatible = "renesas,sh_fsi2"; | |
| 98 | reg = <0xec230000 0x400>; | |
| 99 | interrupt-parent = <&gic>; | |
| 100 | interrupts = <0 146 0x4>; | |
| 101 | }; | |
| 015f630d JFM |
102 | |
| 103 | Example 2 - many DAI links: | |
| 104 | ||
| 105 | sound { | |
| 106 | compatible = "simple-audio-card"; | |
| 107 | simple-audio-card,name = "Cubox Audio"; | |
| 108 | simple-audio-card,format = "i2s"; | |
| 109 | ||
| 110 | simple-audio-card,dai-link@0 { /* I2S - HDMI */ | |
| 111 | simple-audio-card,cpu { | |
| 112 | sound-dai = <&audio1 0>; | |
| 113 | }; | |
| 114 | simple-audio-card,codec { | |
| 115 | sound-dai = <&tda998x 0>; | |
| 116 | }; | |
| 117 | }; | |
| 118 | ||
| 119 | simple-audio-card,dai-link@1 { /* S/PDIF - HDMI */ | |
| 120 | simple-audio-card,cpu { | |
| 121 | sound-dai = <&audio1 1>; | |
| 122 | }; | |
| 123 | simple-audio-card,codec { | |
| 124 | sound-dai = <&tda998x 1>; | |
| 125 | }; | |
| 126 | }; | |
| 127 | ||
| 128 | simple-audio-card,dai-link@2 { /* S/PDIF - S/PDIF */ | |
| 129 | simple-audio-card,cpu { | |
| 130 | sound-dai = <&audio1 1>; | |
| 131 | }; | |
| 132 | simple-audio-card,codec { | |
| 133 | sound-dai = <&spdif_codec>; | |
| 134 | }; | |
| 135 | }; | |
| 136 | }; |