diff options
| -rw-r--r-- | drivers/dma/pl330.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 027f1d7..2dbc930 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -1048,6 +1048,10 @@ static bool _trigger(struct pl330_thread *thrd) if (!req) return true; + /* Return if req is running */ + if (idx == thrd->req_running) + return true; + desc = req->desc; ns = desc->rqcfg.nonsecure ? 1 : 0; @@ -1587,6 +1591,8 @@ static int pl330_update(struct pl330_dmac *pl330) descdone = thrd->req[active].desc; thrd->req[active].desc = NULL; + thrd->req_running = -1; + /* Get going again ASAP */ _start(thrd); |