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 --- sound/soc/soc-cache.c | 11 ++++++----- 1 files changed, 6 insertions(+), 5 deletions(-)

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 @@ 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;