ASoC: Add compress_type as a member to snd_soc_codec

We need to keep a copy of the compress_type supplied by the codec driver
so that we can override it if necessary with whatever the machine driver
has provided us with.  The reason for not modifying the codec->driver
struct directly is that ideally we'd like to keep it const.

Adjust the code in soc-cache and soc-core to make use of the compress_type
member in the snd_soc_codec struct.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

3 files changed, 8 insertions, 2 deletions

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 714a70441bf2..586bfb99fedb 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -460,6 +460,7 @@ struct snd_soc_codec {
         struct list_head list;
         struct list_head card_list;
         int num_dai;
+        enum snd_soc_compress_type compress_type;
 
         /* runtime */
         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index 78b25e8c03f6..cb58b11d4f47 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -1550,11 +1550,11 @@ int snd_soc_cache_init(struct snd_soc_codec *codec)
         int i;
 
         for (i = 0; i < ARRAY_SIZE(cache_types); ++i)
-                if (cache_types[i].id == codec->driver->compress_type)
+                if (cache_types[i].id == codec->compress_type)
                         break;
         if (i == ARRAY_SIZE(cache_types)) {
                 dev_err(codec->dev, "Could not match compress type: %d\n",
-                        codec->driver->compress_type);
+                        codec->compress_type);
                 return -EINVAL;
         }
 
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 2b1fcae4131e..1fd1d1a62af1 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3450,6 +3450,11 @@ int snd_soc_register_codec(struct device *dev,
                 return -ENOMEM;
         }
 
+        if (codec_drv->compress_type)
+                codec->compress_type = codec_drv->compress_type;
+        else
+                codec->compress_type = SND_SOC_FLAT_COMPRESSION;
+
         INIT_LIST_HEAD(&codec->dapm.widgets);
         INIT_LIST_HEAD(&codec->dapm.paths);
         codec->write = codec_drv->write;