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ASoC: pcm: Refactor soc_pcm_apply_msb for multicodecs 

Refactor the function to facilitate the migration to
multiple codecs.

Fix a trailing space in the header as well.

No functional change.

Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Benoit Cousson 2014-07-01 09:47:55 +02:00 committed by Mark Brown
parent 3f901a028f
commit c8dd1fec47
1 changed files with 24 additions and 11 deletions
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35
sound/soc/soc-pcm.c
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@ -7,7 +7,7 @@
* Copyright (C) 2010 Texas Instruments Inc.
*
* Authors: Liam Girdwood <lrg@ti.com>
* Mark Brown <broonie@opensource.wolfsonmicro.com>
* Mark Brown <broonie@opensource.wolfsonmicro.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@ -284,15 +284,10 @@ static int sample_sizes[] = {
24, 32,
};
static void soc_pcm_apply_msb(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
static void soc_pcm_set_msb(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai, int bits)
{
int ret, i, bits;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
bits = dai->driver->playback.sig_bits;
else
bits = dai->driver->capture.sig_bits;
int ret, i;
if (!bits)
return;
@ -310,6 +305,25 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream,
}
}
static void soc_pcm_apply_msb(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
unsigned int bits = 0, cpu_bits;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
bits = codec_dai->driver->playback.sig_bits;
cpu_bits = cpu_dai->driver->playback.sig_bits;
} else {
bits = codec_dai->driver->capture.sig_bits;
cpu_bits = cpu_dai->driver->capture.sig_bits;
}
soc_pcm_set_msb(substream, codec_dai, bits);
soc_pcm_set_msb(substream, cpu_dai, cpu_bits);
}
static void soc_pcm_init_runtime_hw(struct snd_pcm_runtime *runtime,
struct snd_soc_pcm_stream *codec_stream,
struct snd_soc_pcm_stream *cpu_stream)
@ -433,8 +447,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
goto config_err;
}
soc_pcm_apply_msb(substream, codec_dai);
soc_pcm_apply_msb(substream, cpu_dai);
soc_pcm_apply_msb(substream);
/* Symmetry only applies if we've already got an active stream. */
if (cpu_dai->active) {