diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-07-16 02:45:12 +0400 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2014-07-26 13:38:19 +0400 |
| commit | d25006e7e5045e76575e9f58903efc1a860a3ff1 (patch) | |
| tree | 586a354b5cd3dbaf6907a39b5013a0a08df2d624 /drivers/mmc | |
| parent | b4c27763d749ab3a4dddfcfd44dc5af15bb91a0e (diff) | |
| download | linux-d25006e7e5045e76575e9f58903efc1a860a3ff1.tar.xz | |
mmc: sh_mmcif: Fix DMA slave address configuration
Commit e5a233cb647d749de2f188477c9a54b94d90477f ("mmc: sh_mmcif:
Factorize DMA channel request and configuration code") incorrectly
set the destination address for both slave channels instead of setting
the source address for the receive channel. Fix that.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sh_mmcif.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 0289b4ecccb3..863d21ee4a2f 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -386,7 +386,7 @@ sh_mmcif_request_dma_one(struct sh_mmcif_host *host, struct sh_mmcif_plat_data *pdata, enum dma_transfer_direction direction) { - struct dma_slave_config cfg; + struct dma_slave_config cfg = { 0, }; struct dma_chan *chan; unsigned int slave_id; struct resource *res; @@ -417,8 +417,12 @@ sh_mmcif_request_dma_one(struct sh_mmcif_host *host, /* In the OF case the driver will get the slave ID from the DT */ cfg.slave_id = slave_id; cfg.direction = direction; - cfg.dst_addr = res->start + MMCIF_CE_DATA; - cfg.src_addr = 0; + + if (direction == DMA_DEV_TO_MEM) + cfg.src_addr = res->start + MMCIF_CE_DATA; + else + cfg.dst_addr = res->start + MMCIF_CE_DATA; + ret = dmaengine_slave_config(chan, &cfg); if (ret < 0) { dma_release_channel(chan); |