mmc: sh_mmcif: Configure DMA slave bus width
The data register is 4 bytes wide, hardcode the DMA transfer size to
4 bytes in both directions.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 863d21e..d11708c 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -418,10 +418,13 @@
cfg.slave_id = slave_id;
cfg.direction = direction;
- if (direction == DMA_DEV_TO_MEM)
+ if (direction == DMA_DEV_TO_MEM) {
cfg.src_addr = res->start + MMCIF_CE_DATA;
- else
+ cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ } else {
cfg.dst_addr = res->start + MMCIF_CE_DATA;
+ cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ }
ret = dmaengine_slave_config(chan, &cfg);
if (ret < 0) {