dmaengine: ti: k3-udma: Fix the running channel handling in alloc_chan_resources
In the unlikely case when the channel is running (RT enabled) during
alloc_chan_resources then we should use udma_reset_chan() and not
udma_stop() as the later is trying to initiate a teardown on the channel,
which is not valid at this point.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200527070612.636-3-peter.ujfalusi@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 4893b6c..1c7d6da 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -1848,7 +1848,7 @@
if (udma_is_chan_running(uc)) {
dev_warn(ud->dev, "chan%d: is running!\n", uc->id);
- udma_stop(uc);
+ udma_reset_chan(uc, false);
if (udma_is_chan_running(uc)) {
dev_err(ud->dev, "chan%d: won't stop!\n", uc->id);
ret = -EBUSY;
