Commit 4719d4b7 authored by Lubomir Rintel's avatar Lubomir Rintel Committed by Vinod Koul
Browse files

dmaengine: mmp_tdma: Log an error if channel is in wrong state 



Let's log an error if the channel can't be prepared because it is in an
unexpected state.

Signed-off-by: default avatarLubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200419164912.670973-6-lkundrak@v3.sk


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 0d8173f2

drivers/dma/mmp_tdma.c

+3 −1
Original line number Diff line number Diff line
@@ -427,8 +427,10 @@ static struct dma_async_tx_descriptor *mmp_tdma_prep_dma_cyclic( 
	int num_periods = buf_len / period_len;

	int i = 0, buf = 0;



	if (tdmac->status != DMA_COMPLETE)

	if (tdmac->status != DMA_COMPLETE) {

		dev_err(tdmac->dev, "controller busy");

		return NULL;

	}



	if (period_len > TDMA_MAX_XFER_BYTES) {

		dev_err(tdmac->dev,