Since next edma3 don't have dmamux, add condition check in the common fsl_edma_free_chan_resources(). Signed-off-by: Robin Gong <yibin.gong@xxxxxxx> --- drivers/dma/fsl-edma-common.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index ef5294f0..d19e8a8 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -642,7 +642,10 @@ void fsl_edma_free_chan_resources(struct dma_chan *chan) spin_lock_irqsave(&fsl_chan->vchan.lock, flags); fsl_chan->edma->drvdata->dis_req(fsl_chan); - fsl_edma_chan_mux(fsl_chan, 0, false); + + if (fsl_chan->edma->drvdata->dmamuxs) + fsl_edma_chan_mux(fsl_chan, 0, false); + fsl_chan->edesc = NULL; vchan_get_all_descriptors(&fsl_chan->vchan, &head); fsl_edma_unprep_slave_dma(fsl_chan); -- 2.7.4
