[PATCH 1/2] mmc: mxcmmc: really configure the DMA on demand

[Juergen Borleis]

Calling mxcmci_use_dma(host) is intended for the next transfer only, not
for generic detection if DMA is possible. Without this change, the DMA gets
never configured and thus, never used.

Signed-off-by: Juergen Borleis <jbe@xxxxxxxxxxxxxx>
---
 drivers/mmc/host/mxcmmc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 2fe6fcd..611f827 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -834,7 +834,8 @@ static void mxcmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	else
 		burstlen = 4;
 
-	if (mxcmci_use_dma(host) && burstlen != host->burstlen) {
+	if (host->dma != NULL && burstlen != host->burstlen) {
+		/* reconfigure DMA on changes only */
 		host->burstlen = burstlen;
 		ret = mxcmci_setup_dma(mmc);
 		if (ret) {
-- 
2.20.1