[v5,11/15] dmaengine: imx-sdma: fix ecspi1 rx dma not work on i.mx8mm
diff mbox series

Message ID 20190610081753.11422-12-yibin.gong@nxp.com
State New
Headers show
Series
  • add ecspi ERR009165 for i.mx6/7 soc family
Related show

Commit Message

Robin Gong June 10, 2019, 8:17 a.m. UTC
From: Robin Gong <yibin.gong@nxp.com>

Because the number of ecspi1 rx event on i.mx8mm is 0, the condition
check ignore such special case without dma channel enabled, which caused
ecspi1 rx works failed. Actually, no need to check event_id0/event_id1
and replace checking 'event_id1' with 'DMA_DEV_TO_DEV', so that configure
event_id1 only in case DEV_TO_DEV.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
---
 drivers/dma/imx-sdma.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

Patch
diff mbox series

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 525ca89..f7c150d 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1202,7 +1202,7 @@  static int sdma_config_channel(struct dma_chan *chan)
 	if ((sdmac->peripheral_type != IMX_DMATYPE_MEMORY) &&
 			(sdmac->peripheral_type != IMX_DMATYPE_DSP)) {
 		/* Handle multiple event channels differently */
-		if (sdmac->event_id1) {
+		if (sdmac->direction == DMA_DEV_TO_DEV) {
 			if (sdmac->peripheral_type == IMX_DMATYPE_ASRC_SP ||
 			    sdmac->peripheral_type == IMX_DMATYPE_ASRC)
 				sdma_set_watermarklevel_for_p2p(sdmac);
@@ -1370,9 +1370,9 @@  static void sdma_free_chan_resources(struct dma_chan *chan)
 
 	sdma_channel_synchronize(chan);
 
-	if (sdmac->event_id0)
-		sdma_event_disable(sdmac, sdmac->event_id0);
-	if (sdmac->event_id1)
+	sdma_event_disable(sdmac, sdmac->event_id0);
+
+	if (sdmac->direction == DMA_DEV_TO_DEV)
 		sdma_event_disable(sdmac, sdmac->event_id1);
 
 	sdmac->event_id0 = 0;
@@ -1670,13 +1670,11 @@  static int sdma_config(struct dma_chan *chan,
 	memcpy(&sdmac->slave_config, dmaengine_cfg, sizeof(*dmaengine_cfg));
 
 	/* Set ENBLn earlier to make sure dma request triggered after that */
-	if (sdmac->event_id0) {
-		if (sdmac->event_id0 >= sdmac->sdma->drvdata->num_events)
-			return -EINVAL;
-		sdma_event_enable(sdmac, sdmac->event_id0);
-	}
+	if (sdmac->event_id0 >= sdmac->sdma->drvdata->num_events)
+		return -EINVAL;
+	sdma_event_enable(sdmac, sdmac->event_id0);
 
-	if (sdmac->event_id1) {
+	if (sdmac->direction == DMA_DEV_TO_DEV) {
 		if (sdmac->event_id1 >= sdmac->sdma->drvdata->num_events)
 			return -EINVAL;
 		sdma_event_enable(sdmac, sdmac->event_id1);