| From d7f83c97441a1475d7f9ea42e347b74cc888e857 Mon Sep 17 00:00:00 2001 |
| From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> |
| Date: Wed, 16 Jul 2014 00:45:13 +0200 |
| Subject: 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> |
| (cherry picked from commit e36152aa84cf68bd7f09acffd480cd2b6aa5480d) |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| --- |
| drivers/mmc/host/sh_mmcif.c | 7 +++++-- |
| 1 file changed, 5 insertions(+), 2 deletions(-) |
| |
| diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c |
| index 863d21ee4a2f..d11708c815d7 100644 |
| --- a/drivers/mmc/host/sh_mmcif.c |
| +++ b/drivers/mmc/host/sh_mmcif.c |
| @@ -418,10 +418,13 @@ sh_mmcif_request_dma_one(struct sh_mmcif_host *host, |
| 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) { |
| -- |
| 2.1.2 |
| |
