dect
/
linux-2.6
Archived
13
0
Fork 0
Code Releases Activity

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>
This commit is contained in:
Dimitris Papastamos 2011-05-05 14:18:11 +01:00 committed by Mark Brown
parent 77530150fb
commit 64d2706975
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sound/soc/soc-cache.c
View File

@ -404,12 +404,13 @@ static int snd_soc_hw_bulk_write_raw(struct snd_soc_codec *codec, unsigned int r
{
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;