target/linux/bcm27xx/patches-6.1/950-1282-ASOc-Add-HiFiBerry-DAC8X-to-the-simple-card-driver.patch

   1 From d4acd8b7ea890c01453cdcf9b04a999ca04dfd2a Mon Sep 17 00:00:00 2001
   2 From: j-schambacher <joerg@hifiberry.com>
   3 Date: Wed, 28 Feb 2024 11:25:14 +0100
   4 Subject: [PATCH 1282/1295] ASOc: Add HiFiBerry DAC8X to the simple card driver
   5
   6 Defines the settings for the 8 channel version of the standard
   7 DAC by overwriting the number of channels in the DAI defs.
   8 It can run in 8ch mode only on PI5 using the 4 lane data output
   9 of the designware I2S0 module.
  10
  11 Signed-off-by: j-schambacher <joerg@hifiberry.com>
  12 ---
  13  sound/soc/bcm/Kconfig                |  5 +++--
  14  sound/soc/bcm/rpi-simple-soundcard.c | 33 ++++++++++++++++++++++++++++
  15  2 files changed, 36 insertions(+), 2 deletions(-)
  16
  17 --- a/sound/soc/bcm/Kconfig
  18 +++ b/sound/soc/bcm/Kconfig
  19 @@ -40,11 +40,12 @@ config SND_BCM2708_SOC_GOOGLEVOICEHAT_SO
  20            Say Y or M if you want to add support for voiceHAT soundcard.
  21
  22  config SND_BCM2708_SOC_HIFIBERRY_DAC
  23 -        tristate "Support for HifiBerry DAC"
  24 +        tristate "Support for HifiBerry DAC and DAC8X"
  25          select SND_SOC_PCM5102A
  26          select SND_RPI_SIMPLE_SOUNDCARD
  27          help
  28 -         Say Y or M if you want to add support for HifiBerry DAC.
  29 +         Say Y or M if you want to add support for HifiBerry DAC and DAC8X.
  30 +         Note: DAC8X only works on PI5
  31
  32  config SND_BCM2708_SOC_HIFIBERRY_DACPLUS
  33          tristate "Support for HifiBerry DAC+"
  34 --- a/sound/soc/bcm/rpi-simple-soundcard.c
  35 +++ b/sound/soc/bcm/rpi-simple-soundcard.c
  36 @@ -316,6 +316,37 @@ static struct snd_rpi_simple_drvdata drv
  37         .dai       = snd_hifiberry_dac_dai,
  38  };
  39
  40 +static int hifiberry_dac8x_init(struct snd_soc_pcm_runtime *rtd)
  41 +{
  42 +       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  43 +
  44 +       /* override the defaults to reflect 4 x PCM5102A on the card
  45 +        * and limit the sample rate to 192ksps
  46 +        */
  47 +       codec_dai->driver->playback.channels_max = 8;
  48 +       codec_dai->driver->playback.rates = SNDRV_PCM_RATE_8000_192000;
  49 +
  50 +       return 0;
  51 +}
  52 +
  53 +static struct snd_soc_dai_link snd_hifiberry_dac8x_dai[] = {
  54 +       {
  55 +               .name           = "HifiBerry DAC8x",
  56 +               .stream_name    = "HifiBerry DAC8x HiFi",
  57 +               .dai_fmt        = SND_SOC_DAIFMT_I2S |
  58 +                                       SND_SOC_DAIFMT_NB_NF |
  59 +                                       SND_SOC_DAIFMT_CBS_CFS,
  60 +               .init           = hifiberry_dac8x_init,
  61 +               SND_SOC_DAILINK_REG(hifiberry_dac),
  62 +       },
  63 +};
  64 +
  65 +static struct snd_rpi_simple_drvdata drvdata_hifiberry_dac8x = {
  66 +       .card_name = "snd_rpi_hifiberry_dac8x",
  67 +       .dai       = snd_hifiberry_dac8x_dai,
  68 +       .fixed_bclk_ratio = 64,
  69 +};
  70 +
  71  SND_SOC_DAILINK_DEFS(dionaudio_kiwi,
  72         DAILINK_COMP_ARRAY(COMP_EMPTY()),
  73         DAILINK_COMP_ARRAY(COMP_CODEC("pcm1794a-codec", "pcm1794a-hifi")),
  74 @@ -417,6 +448,8 @@ static const struct of_device_id snd_rpi
  75                 .data = (void *) &drvdata_hifiberry_amp3 },
  76         { .compatible = "hifiberry,hifiberry-dac",
  77                 .data = (void *) &drvdata_hifiberry_dac },
  78 +       { .compatible = "hifiberry,hifiberry-dac8x",
  79 +               .data = (void *) &drvdata_hifiberry_dac8x },
  80         { .compatible = "dionaudio,dionaudio-kiwi",
  81                 .data = (void *) &drvdata_dionaudio_kiwi },
  82         { .compatible = "rpi,rpi-dac", &drvdata_rpi_dac},