target/linux/bcm27xx/patches-4.19/950-0377-staging-bcm2835-audio-Remove-redundant-function-call.patch

   1 From 79a3c1a4419b2bf04f6ff5ef84cd74b0456fdd9a Mon Sep 17 00:00:00 2001
   2 From: Takashi Iwai <tiwai@suse.de>
   3 Date: Tue, 4 Sep 2018 17:58:35 +0200
   4 Subject: [PATCH] staging: bcm2835-audio: Remove redundant function
   5  calls
   6
   7 commit 124950ebe9fa8547c59e8d4acc8d6c59e6278ed6 upstream.
   8
   9 bcm2835_audio_setup(), bcm2835_audio_flush_buffers() and
  10 bcm2835_audio_flush_playback_buffers() functions do implement
  11 nothing.
  12
  13 Also, bcm2835_audio_set_ctls() is already called inside
  14 bcm2835_audio_set_params(), so the later call is superfluous.
  15
  16 This patch removes these superfluous implementations.
  17
  18 Signed-off-by: Takashi Iwai <tiwai@suse.de>
  19 Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
  20 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  21 ---
  22  .../vc04_services/bcm2835-audio/bcm2835-pcm.c |  5 -----
  23  .../bcm2835-audio/bcm2835-vchiq.c             | 21 -------------------
  24  .../vc04_services/bcm2835-audio/bcm2835.h     |  3 ---
  25  3 files changed, 29 deletions(-)
  26
  27 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
  28 +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
  29 @@ -277,11 +277,6 @@ static int snd_bcm2835_pcm_prepare(struc
  30         if (err < 0)
  31                 audio_error(" error setting hw params\n");
  32
  33 -       bcm2835_audio_setup(alsa_stream);
  34 -
  35 -       /* in preparation of the stream, set the controls (volume level) of the stream */
  36 -       bcm2835_audio_set_ctls(alsa_stream);
  37 -
  38         memset(&alsa_stream->pcm_indirect, 0, sizeof(alsa_stream->pcm_indirect));
  39
  40         alsa_stream->pcm_indirect.hw_buffer_size =
  41 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
  42 +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
  43 @@ -580,12 +580,6 @@ unlock:
  44         return ret;
  45  }
  46
  47 -int bcm2835_audio_setup(struct bcm2835_alsa_stream *alsa_stream)
  48 -{
  49 -
  50 -       return 0;
  51 -}
  52 -
  53  static int bcm2835_audio_start_worker(struct bcm2835_alsa_stream *alsa_stream)
  54  {
  55         struct vc_audio_msg m;
  56 @@ -774,21 +768,6 @@ unlock:
  57         return ret;
  58  }
  59
  60 -/**
  61 - * Returns all buffers from arm->vc
  62 - */
  63 -void bcm2835_audio_flush_buffers(struct bcm2835_alsa_stream *alsa_stream)
  64 -{
  65 -}
  66 -
  67 -/**
  68 - * Forces VC to flush(drop) its filled playback buffers and
  69 - * return them the us. (VC->ARM)
  70 - */
  71 -void bcm2835_audio_flush_playback_buffers(struct bcm2835_alsa_stream *alsa_stream)
  72 -{
  73 -}
  74 -
  75  unsigned int bcm2835_audio_retrieve_buffers(struct bcm2835_alsa_stream *alsa_stream)
  76  {
  77         unsigned int count = atomic_read(&alsa_stream->retrieved);
  78 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
  79 +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
  80 @@ -158,7 +158,6 @@ int bcm2835_audio_close(struct bcm2835_a
  81  int bcm2835_audio_set_params(struct bcm2835_alsa_stream *alsa_stream,
  82                              unsigned int channels, unsigned int samplerate,
  83                              unsigned int bps);
  84 -int bcm2835_audio_setup(struct bcm2835_alsa_stream *alsa_stream);
  85  int bcm2835_audio_start(struct bcm2835_alsa_stream *alsa_stream);
  86  int bcm2835_audio_stop(struct bcm2835_alsa_stream *alsa_stream);
  87  int bcm2835_audio_set_ctls(struct bcm2835_alsa_stream *alsa_stream);
  88 @@ -167,7 +166,5 @@ int bcm2835_audio_write(struct bcm2835_a
  89                         void *src);
  90  void bcm2835_playback_fifo(struct bcm2835_alsa_stream *alsa_stream);
  91  unsigned int bcm2835_audio_retrieve_buffers(struct bcm2835_alsa_stream *alsa_stream);
  92 -void bcm2835_audio_flush_buffers(struct bcm2835_alsa_stream *alsa_stream);
  93 -void bcm2835_audio_flush_playback_buffers(struct bcm2835_alsa_stream *alsa_stream);
  94
  95  #endif /* __SOUND_ARM_BCM2835_H */