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>

1 files changed, 24 insertions, 11 deletions

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 54d18f22a33e..320a904b6b69 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -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) {