target/linux/bcm27xx/patches-4.19/950-0386-staging-bcm2835-audio-Drop-debug-messages-in-bcm2835.patch

   1 From e109804fa00a139a05626c1b8ceebcfe3577fc6d Mon Sep 17 00:00:00 2001
   2 From: Takashi Iwai <tiwai@suse.de>
   3 Date: Tue, 4 Sep 2018 17:58:44 +0200
   4 Subject: [PATCH] staging: bcm2835-audio: Drop debug messages in
   5  bcm2835-pcm.c
   6
   7 commit 055e1c330d04df87d4730a5db837161c11ddaafc upstream.
   8
   9 These debug messages worsen the code readability a lot while they give
  10 little debuggability (which we already have via tracing, in anyway).
  11
  12 Let's clean them up.  This allows us to reduce the
  13 snd_bcm2835_pcm_lib_ioctl() function to be a direct call of the
  14 snd_pcm_lib_ioctl callback (like most other drivers do), too.
  15
  16 Signed-off-by: Takashi Iwai <tiwai@suse.de>
  17 Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
  18 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  19 ---
  20  .../vc04_services/bcm2835-audio/bcm2835-pcm.c | 51 +++----------------
  21  1 file changed, 7 insertions(+), 44 deletions(-)
  22
  23 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
  24 +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
  25 @@ -44,9 +44,7 @@ static const struct snd_pcm_hardware snd
  26
  27  static void snd_bcm2835_playback_free(struct snd_pcm_runtime *runtime)
  28  {
  29 -       audio_info("Freeing up alsa stream here ..\n");
  30         kfree(runtime->private_data);
  31 -       runtime->private_data = NULL;
  32  }
  33
  34  void bcm2835_playback_fifo(struct bcm2835_alsa_stream *alsa_stream)
  35 @@ -99,7 +97,6 @@ static int snd_bcm2835_playback_open_gen
  36         int err;
  37
  38         mutex_lock(&chip->audio_mutex);
  39 -       audio_info("Alsa open (%d)\n", substream->number);
  40         idx = substream->number;
  41
  42         if (spdif && chip->opened) {
  43 @@ -182,8 +179,6 @@ static int snd_bcm2835_playback_close(st
  44         runtime = substream->runtime;
  45         alsa_stream = runtime->private_data;
  46
  47 -       audio_info("Alsa close\n");
  48 -
  49         alsa_stream->period_size = 0;
  50         alsa_stream->buffer_size = 0;
  51
  52 @@ -251,10 +246,6 @@ static int snd_bcm2835_pcm_prepare(struc
  53         alsa_stream->pos = 0;
  54         alsa_stream->draining = false;
  55
  56 -       audio_debug("buffer_size=%d, period_size=%d pos=%d frame_bits=%d\n",
  57 -               alsa_stream->buffer_size, alsa_stream->period_size,
  58 -               alsa_stream->pos, runtime->frame_bits);
  59 -
  60   out:
  61         mutex_unlock(&chip->audio_mutex);
  62         return err;
  63 @@ -266,12 +257,8 @@ static void snd_bcm2835_pcm_transfer(str
  64         struct snd_pcm_runtime *runtime = substream->runtime;
  65         struct bcm2835_alsa_stream *alsa_stream = runtime->private_data;
  66         void *src = (void *) (substream->runtime->dma_area + rec->sw_data);
  67 -       int err;
  68 -
  69 -       err = bcm2835_audio_write(alsa_stream, bytes, src);
  70 -       if (err)
  71 -               audio_error(" Failed to transfer to alsa device (%d)\n", err);
  72
  73 +       bcm2835_audio_write(alsa_stream, bytes, src);
  74  }
  75
  76  static int snd_bcm2835_pcm_ack(struct snd_pcm_substream *substream)
  77 @@ -289,27 +276,18 @@ static int snd_bcm2835_pcm_trigger(struc
  78  {
  79         struct snd_pcm_runtime *runtime = substream->runtime;
  80         struct bcm2835_alsa_stream *alsa_stream = runtime->private_data;
  81 -       int err = 0;
  82
  83         switch (cmd) {
  84         case SNDRV_PCM_TRIGGER_START:
  85 -               err = bcm2835_audio_start(alsa_stream);
  86 -               if (err)
  87 -                       audio_error(" Failed to START alsa device (%d)\n", err);
  88 -               break;
  89 +               return bcm2835_audio_start(alsa_stream);
  90         case SNDRV_PCM_TRIGGER_DRAIN:
  91                 alsa_stream->draining = true;
  92 -               break;
  93 +               return 0;
  94         case SNDRV_PCM_TRIGGER_STOP:
  95 -               err = bcm2835_audio_stop(alsa_stream);
  96 -               if (err)
  97 -                       audio_error(" Failed to STOP alsa device (%d)\n", err);
  98 -               break;
  99 +               return bcm2835_audio_stop(alsa_stream);
 100         default:
 101 -               err = -EINVAL;
 102 +               return -EINVAL;
 103         }
 104 -
 105 -       return err;
 106  }
 107
 108  /* pointer callback */
 109 @@ -319,31 +297,16 @@ snd_bcm2835_pcm_pointer(struct snd_pcm_s
 110         struct snd_pcm_runtime *runtime = substream->runtime;
 111         struct bcm2835_alsa_stream *alsa_stream = runtime->private_data;
 112
 113 -       audio_debug("pcm_pointer... (%d) hwptr=%d appl=%d pos=%d\n", 0,
 114 -               frames_to_bytes(runtime, runtime->status->hw_ptr),
 115 -               frames_to_bytes(runtime, runtime->control->appl_ptr),
 116 -               alsa_stream->pos);
 117 -
 118         return snd_pcm_indirect_playback_pointer(substream,
 119                 &alsa_stream->pcm_indirect,
 120                 alsa_stream->pos);
 121  }
 122
 123 -static int snd_bcm2835_pcm_lib_ioctl(struct snd_pcm_substream *substream,
 124 -       unsigned int cmd, void *arg)
 125 -{
 126 -       int ret = snd_pcm_lib_ioctl(substream, cmd, arg);
 127 -
 128 -       audio_info(" .. substream=%p, cmd=%d, arg=%p (%x) ret=%d\n", substream,
 129 -               cmd, arg, arg ? *(unsigned int *)arg : 0, ret);
 130 -       return ret;
 131 -}
 132 -
 133  /* operators */
 134  static const struct snd_pcm_ops snd_bcm2835_playback_ops = {
 135         .open = snd_bcm2835_playback_open,
 136         .close = snd_bcm2835_playback_close,
 137 -       .ioctl = snd_bcm2835_pcm_lib_ioctl,
 138 +       .ioctl = snd_pcm_lib_ioctl,
 139         .hw_params = snd_bcm2835_pcm_hw_params,
 140         .hw_free = snd_bcm2835_pcm_hw_free,
 141         .prepare = snd_bcm2835_pcm_prepare,
 142 @@ -355,7 +318,7 @@ static const struct snd_pcm_ops snd_bcm2
 143  static const struct snd_pcm_ops snd_bcm2835_playback_spdif_ops = {
 144         .open = snd_bcm2835_playback_spdif_open,
 145         .close = snd_bcm2835_playback_close,
 146 -       .ioctl = snd_bcm2835_pcm_lib_ioctl,
 147 +       .ioctl = snd_pcm_lib_ioctl,
 148         .hw_params = snd_bcm2835_pcm_hw_params,
 149         .hw_free = snd_bcm2835_pcm_hw_free,
 150         .prepare = snd_bcm2835_pcm_prepare,