ASoC: soc-cache: Introduce the cache_bypass option

This is primarily needed to avoid writing back to the cache
whenever we are syncing the cache with the hardware.  This gives a
performance benefit especially for large register maps.

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, 1 insertions, 0 deletions

diff --git a/include/sound/soc.h b/include/sound/soc.h
index d244f9013767..c184f84a354c 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -488,6 +488,7 @@ struct snd_soc_codec {
         /* runtime */
         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
         unsigned int active;
+        unsigned int cache_bypass:1; /* Suppress access to the cache */
         unsigned int cache_only:1;  /* Suppress writes to hardware */
         unsigned int cache_sync:1; /* Cache needs to be synced to hardware */
         unsigned int suspended:1; /* Codec is in suspend PM state */