target/linux/brcm2708/patches-4.14/950-0214-ASoC-hifiberry_dacplus-fix-S24_LE-format.patch

   1 From d94d483e5f0798294aa1eb738c203acc4a7f415e Mon Sep 17 00:00:00 2001
   2 From: Matthias Reichl <hias@horus.com>
   3 Date: Fri, 2 Feb 2018 20:30:42 +0100
   4 Subject: [PATCH 214/454] ASoC: hifiberry_dacplus: fix S24_LE format
   5
   6 Remove set_bclk_ratio call so 24-bit data is transmitted in
   7 24 bclk cycles.
   8
   9 Signed-off-by: Matthias Reichl <hias@horus.com>
  10 ---
  11  sound/soc/bcm/hifiberry_dacplus.c | 20 +++-----------------
  12  1 file changed, 3 insertions(+), 17 deletions(-)
  13
  14 --- a/sound/soc/bcm/hifiberry_dacplus.c
  15 +++ b/sound/soc/bcm/hifiberry_dacplus.c
  16 @@ -216,20 +216,11 @@ static int snd_rpi_hifiberry_dacplus_upd
  17         return 0;
  18  }
  19
  20 -static int snd_rpi_hifiberry_dacplus_set_bclk_ratio_pro(
  21 -       struct snd_soc_dai *cpu_dai, struct snd_pcm_hw_params *params)
  22 -{
  23 -       int bratio = snd_pcm_format_physical_width(params_format(params))
  24 -               * params_channels(params);
  25 -       return snd_soc_dai_set_bclk_ratio(cpu_dai, bratio);
  26 -}
  27 -
  28  static int snd_rpi_hifiberry_dacplus_hw_params(
  29         struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
  30  {
  31 -       int ret;
  32 +       int ret = 0;
  33         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  34 -       struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  35
  36         if (snd_rpi_hifiberry_is_dacpro) {
  37                 struct snd_soc_codec *codec = rtd->codec;
  38 @@ -237,13 +228,8 @@ static int snd_rpi_hifiberry_dacplus_hw_
  39                 snd_rpi_hifiberry_dacplus_set_sclk(codec,
  40                         params_rate(params));
  41
  42 -               ret = snd_rpi_hifiberry_dacplus_set_bclk_ratio_pro(cpu_dai,
  43 -                       params);
  44 -               if (!ret)
  45 -                       ret = snd_rpi_hifiberry_dacplus_update_rate_den(
  46 -                               substream, params);
  47 -       } else {
  48 -               ret = snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
  49 +               ret = snd_rpi_hifiberry_dacplus_update_rate_den(
  50 +                       substream, params);
  51         }
  52         return ret;
  53  }