ASoC: soc-cache: Allow codec->cache_bypass to be used with snd_soc_hw_bulk_write_raw()
If we specifically want to write a block of data to the hw bypassing the
cache, then allow this to happen inside snd_soc_hw_bulk_write_raw().
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index a217db2..687beec 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -404,12 +404,13 @@
{
int ret;
- /* Ensure that the base register is volatile. Subsequently
- * any other register that is touched by this routine should be
- * volatile as well to ensure that we don't get out of sync with
- * the cache.
+ /* To ensure that we don't get out of sync with the cache, check
+ * whether the base register is volatile or if we've directly asked
+ * to bypass the cache. Out of bounds registers are considered
+ * volatile.
*/
- if (!snd_soc_codec_volatile_register(codec, reg)
+ if (!codec->cache_bypass
+ && !snd_soc_codec_volatile_register(codec, reg)
&& reg < codec->driver->reg_cache_size)
return -EINVAL;