ASoC: Automatically assign the default readable()/volatile() functions

Ensure that all calls to readable_register()/volatile_register() go via
the snd_soc_codec function pointers.

If the default register access table has been given but no functions
for handling readable()/volatile() registers, use the default ones provided
by soc-cache.

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>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 97d1832bb9df..accb8a16c165 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -480,6 +480,8 @@ struct snd_soc_codec {
         int num_dai;
         enum snd_soc_compress_type compress_type;
         size_t reg_size;        /* reg_cache_size * reg_word_size */
+        int (*volatile_register)(struct snd_soc_codec *, unsigned int);
+        int (*readable_register)(struct snd_soc_codec *, unsigned int);
 
         /* runtime */
         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */