arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-ard-audio-da7212.dtso

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Device Tree Source for the White Hawk board with ARD-AUDIO-DA7212 Board
   4  *
   5  * You can find and buy "ARD-AUDIO-DA7212" at Digi-Key
   6  *
   7  *      https://www.digikey.jp/en/products/detail/ARD-AUDIO-DA7212/1564-1021-ND/5456357
   8  *
   9  * Copyright (C) 2022 Renesas Electronics Corp.
  10  *
  11  *
  12  * [Connection]
  13  *
  14  * White Hawk                           ARD-AUDIO-DA7212
  15  * +----------------------------+
  16  * |CPU board                   |
  17  * |                            |
  18  * |CN40 (IO PIN HEADER)        |
  19  * |    AUDIO_CLKIN_V     pin1  |<--\   +---------------+
  20  * |(*) GP1_25/SL_SW2_V   pin2  |<--/   |J2             |
  21  * |    AUDIO_CLKOUT_V    pin5  |<----->| pin7  MCLK    |
  22  * |    SSI_SCK_V         pin9  |<----->| pin1  BCLK    |
  23  * |    SSI_WS_V          pin13 |<----->| pin3  WCLK    |
  24  * |    SSI_SD_V          pin15 |<----->| pin5  DATIN   | (@)
  25  * |                            |   \-->| pin15 DATOUT  | [CAPTURE]
  26  * +----------------------------+       +---------------+
  27  * +----------------------------+
  28  * |Breakout board              |
  29  * |                            |       +---------------+
  30  * |CN34 (I2C CN)               |       |J1             |
  31  * |    I2C0_SCL           pin3 |<----->| pin20 SCL     |
  32  * |    I2C0_SDA           pin5 |<----->| pin18 SDA     |
  33  * |                            |       +---------------+
  34  * |                            |       +-----------------------+
  35  * |CN4 (Power)                 |       |J7                     |
  36  * |    3v3 (v)            pin9 |<----->| pin4  / pin8  3.3v    |
  37  * |    GND (v)     pin3 / pin4 |<----->| pin12 / pin14 GND     |
  38  * +----------------------------+       +-----------------------+
  39  * (*)  GP1_25/SL_SW2_V is used as TPU
  40  * (@)  Connect to pin5 (DATIN = playback) or pin15 (DATOUT = capture)
  41  * (v)  These are just sample pins. You can find many 3v3 / GND pins on
  42  *      White Hawk board, not only CN4. You can use other pins for it.
  43  *
  44  * [How to enable]
  45  *
  46  * You need these configs
  47  *
  48  *      CONFIG_PWM
  49  *      CONFIG_PWM_RENESAS_TPU
  50  *      CONFIG_COMMON_CLK_PWM
  51  *      CONFIG_SND_SOC_DA7213
  52  *
  53  * [How to use]
  54  *
  55  * 44.1kHz groups sound is available by default.
  56  * You need to update audio_clkin settings to switch to 48kHz groups sound.
  57  * see
  58  *      [(C) clock]
  59  *
  60  * You can use capture if you change the settings
  61  * see
  62  *      [CAPTURE]
  63  *
  64  * You need to setup Headphone
  65  *
  66  *      > amixer set "Headphone" 40%
  67  *      > amixer set "Headphone" on
  68  *      > amixer set "Mixout Left DAC Left" on
  69  *      > amixer set "Mixout Right DAC Right" on
  70  */
  71
  72 /dts-v1/;
  73 /plugin/;
  74 #include <dt-bindings/clock/r8a779g0-cpg-mssr.h>
  75
  76 &{/} {
  77         sound_card: sound {
  78                 compatible = "audio-graph-card";
  79                 label = "rcar-sound";
  80
  81                 dais = <&rsnd_port>;    /* DA7212 Audio Codec */
  82         };
  83
  84         tpu_clk: tpu-clk {
  85                 compatible = "pwm-clock";
  86                 #clock-cells = <0>;
  87
  88                 /* 44.1kHz groups [(C) clock] */
  89                 clock-frequency = <11289600>;
  90                 pwms = <&tpu 0 88 0>;   /* 1000000000 / 88 =~ 11289600 */
  91
  92                 /* 48  kHz groups [(C) clock] */
  93 //              clock-frequency = <12288000>;
  94 //              pwms = <&tpu 0 81 0>;   /* 1000000000 / 81 =~ 12288000 */
  95         };
  96
  97 };
  98
  99 &pfc {
 100         sound_pins: sound {
 101                 groups = "ssi_ctrl", "ssi_data";
 102                 function = "ssi";
 103         };
 104
 105         sound_clk_pins: sound-clk {
 106                 groups = "audio_clkin", "audio_clkout";
 107                 function = "audio_clk";
 108         };
 109
 110         tpu0_pins: tpu0 {
 111                 groups = "tpu_to0_a";
 112                 function = "tpu";
 113         };
 114 };
 115
 116 &tpu {
 117         pinctrl-0 = <&tpu0_pins>;
 118         pinctrl-names = "default";
 119
 120         status = "okay";
 121 };
 122
 123 &i2c0 {
 124         #address-cells = <1>;
 125         #size-cells = <0>;
 126
 127         codec@1a {
 128                 compatible = "dlg,da7212";
 129
 130                 #sound-dai-cells = <0>;
 131                 reg = <0x1a>;
 132
 133                 clocks = <&rcar_sound>;
 134                 clock-names = "mclk";
 135
 136                 dlg,micbias1-lvl = <2500>;
 137                 dlg,micbias2-lvl = <2500>;
 138                 dlg,dmic-data-sel = "lrise_rfall";
 139                 dlg,dmic-samplephase = "between_clkedge";
 140                 dlg,dmic-clkrate = <3000000>;
 141
 142                 VDDA-supply   = <&reg_1p8v>;
 143                 VDDMIC-supply = <&reg_3p3v>;
 144                 VDDIO-supply  = <&reg_3p3v>;
 145
 146                 port {
 147                         da7212_endpoint: endpoint {
 148                                 remote-endpoint = <&rsnd_endpoint>;
 149                         };
 150                 };
 151         };
 152 };
 153
 154 &rcar_sound {
 155         pinctrl-0 = <&sound_clk_pins>, <&sound_pins>;
 156         pinctrl-names = "default";
 157
 158         /* Single DAI */
 159         #sound-dai-cells = <0>;
 160
 161         /* audio_clkout */
 162         #clock-cells = <0>;
 163         clock-frequency = <5644800>; /* 44.1kHz groups [(C) clock] */
 164 //      clock-frequency = <6144000>; /* 48  kHz groups [(C) clock] */
 165
 166         status = "okay";
 167
 168         /* Update <clkin> to <tpu_clk> */
 169         clocks = <&cpg CPG_MOD 2926>, <&cpg CPG_MOD 2927>, <&tpu_clk>;
 170
 171         ports {
 172                 rsnd_port: port {
 173                         rsnd_endpoint: endpoint {
 174                                 remote-endpoint = <&da7212_endpoint>;
 175
 176                                 dai-format = "i2s";
 177                                 bitclock-master = <&rsnd_endpoint>;
 178                                 frame-master = <&rsnd_endpoint>;
 179
 180                                 /* Mutually exclusive with 'capture' */
 181                                 playback = <&ssi0>;
 182                                 /* [CAPTURE] */
 183                                 /* capture = <&ssi0>; */
 184                         };
 185                 };
 186         };
 187 };