Already done by pipeline, but prepare still needs to write back.
Signed-off-by: Liam Girdwood liam.r.girdwood@linux.intel.com --- src/audio/dai.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/src/audio/dai.c b/src/audio/dai.c index cc61e83..2fbfc5f 100644 --- a/src/audio/dai.c +++ b/src/audio/dai.c @@ -442,15 +442,14 @@ static int dai_prepare(struct comp_dev *dev) return -EINVAL; }
- /* writeback buffer contents from cache */ + /* initialise buffers */ if (dev->params.direction == SOF_IPC_STREAM_PLAYBACK) { + + /* write back buffer contents from cache for playback */ dma_buffer = list_first_item(&dev->bsource_list, struct comp_buffer, sink_list);
- /* fill playback periods with silence */ - bzero(dma_buffer->r_ptr, dma_buffer->avail); - - dcache_writeback_region(dma_buffer->r_ptr, dma_buffer->avail); + dcache_writeback_region(dma_buffer->addr, dma_buffer->size); }
/* dma reconfig not required if XRUN handling */