OrgACRN
/
sof
mirror of https://github.com/thesofproject/sof.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

dw-dma: fix clearing done bit when using HW LL 

Fixes clearing done bit when using HW LL. There can be
a situation, when more than one linked list item has been
already transferred, so we need to clear all of them.

Signed-off-by: Tomasz Lauda <tomasz.lauda@linux.intel.com>
This commit is contained in:
Tomasz Lauda 2019-08-22 17:11:01 +02:00 committed by Tomasz Lauda
parent df2a59dad4
commit e643457b79
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/drivers/dw/dma.c
View File

@ -989,10 +989,11 @@ static void dw_dma_verify_transfer(struct dma *dma, unsigned int channel,
dw_write(dma, DW_DMA_CHAN_EN, DW_CHAN_MASK(channel));
/* fallthrough */
default:
if (ll_uncached->ctrl_hi & DW_CTLH_DONE(1)) {
while (ll_uncached->ctrl_hi & DW_CTLH_DONE(1)) {
ll_uncached->ctrl_hi &= ~DW_CTLH_DONE(1);
chan->lli_current =
(struct dw_lli *)chan->lli_current->llp;
ll_uncached = cache_to_uncache(chan->lli_current);
}
break;
}