ASoC: Constify struct snd_soc_codec_driver

Allow the CODEC driver structure to be marked const by making all
the APIs that use it do so.

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

3 files changed, 11 insertions, 10 deletions

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 7d53cc453637..0eea08e1bdd5 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -265,7 +265,7 @@ int snd_soc_register_platform(struct device *dev,
                 struct snd_soc_platform_driver *platform_drv);
 void snd_soc_unregister_platform(struct device *dev);
 int snd_soc_register_codec(struct device *dev,
-                struct snd_soc_codec_driver *codec_drv,
+                const struct snd_soc_codec_driver *codec_drv,
                 struct snd_soc_dai_driver *dai_drv, int num_dai);
 void snd_soc_unregister_codec(struct device *dev);
 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg);
@@ -453,7 +453,7 @@ struct snd_soc_codec {
         const char *name_prefix;
         int id;
         struct device *dev;
-        struct snd_soc_codec_driver *driver;
+        const struct snd_soc_codec_driver *driver;
 
         struct mutex mutex;
         struct snd_soc_card *card;
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index 6c6ced7a3819..ff2bc8beddaa 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -1078,7 +1078,7 @@ static int snd_soc_lzo_decompress_cache_block(struct snd_soc_codec *codec,
 static inline int snd_soc_lzo_get_blkindex(struct snd_soc_codec *codec,
                 unsigned int reg)
 {
-        struct snd_soc_codec_driver *codec_drv;
+        const struct snd_soc_codec_driver *codec_drv;
         size_t reg_size;
 
         codec_drv = codec->driver;
@@ -1090,7 +1090,7 @@ static inline int snd_soc_lzo_get_blkindex(struct snd_soc_codec *codec,
 static inline int snd_soc_lzo_get_blkpos(struct snd_soc_codec *codec,
                 unsigned int reg)
 {
-        struct snd_soc_codec_driver *codec_drv;
+        const struct snd_soc_codec_driver *codec_drv;
         size_t reg_size;
 
         codec_drv = codec->driver;
@@ -1101,7 +1101,7 @@ static inline int snd_soc_lzo_get_blkpos(struct snd_soc_codec *codec,
 
 static inline int snd_soc_lzo_get_blksize(struct snd_soc_codec *codec)
 {
-        struct snd_soc_codec_driver *codec_drv;
+        const struct snd_soc_codec_driver *codec_drv;
         size_t reg_size;
 
         codec_drv = codec->driver;
@@ -1301,7 +1301,7 @@ static int snd_soc_lzo_cache_init(struct snd_soc_codec *codec)
 {
         struct snd_soc_lzo_ctx **lzo_blocks;
         size_t reg_size, bmp_size;
-        struct snd_soc_codec_driver *codec_drv;
+        const struct snd_soc_codec_driver *codec_drv;
         int ret, tofree, i, blksize, blkcount;
         const char *p, *end;
         unsigned long *sync_bmp;
@@ -1404,7 +1404,7 @@ static int snd_soc_flat_cache_sync(struct snd_soc_codec *codec)
 {
         int i;
         int ret;
-        struct snd_soc_codec_driver *codec_drv;
+        const struct snd_soc_codec_driver *codec_drv;
         unsigned int val;
 
         codec_drv = codec->driver;
@@ -1504,7 +1504,7 @@ static int snd_soc_flat_cache_exit(struct snd_soc_codec *codec)
 
 static int snd_soc_flat_cache_init(struct snd_soc_codec *codec)
 {
-        struct snd_soc_codec_driver *codec_drv;
+        const struct snd_soc_codec_driver *codec_drv;
         size_t reg_size;
 
         codec_drv = codec->driver;
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index e9aa9ce59c06..78a01014079a 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3491,8 +3491,9 @@ static void fixup_codec_formats(struct snd_soc_pcm_stream *stream)
  * @codec: codec to register
  */
 int snd_soc_register_codec(struct device *dev,
-                struct snd_soc_codec_driver *codec_drv,
-                struct snd_soc_dai_driver *dai_drv, int num_dai)
+                           const struct snd_soc_codec_driver *codec_drv,
+                           struct snd_soc_dai_driver *dai_drv,
+                           int num_dai)
 {
         size_t reg_size;
         struct snd_soc_codec *codec;