Currently the dma direction is manually determined by the read status,
there is a more portable function for it, mmc_get_dma_dir, use it.
Signed-off-by: Christian Lütke-Stetzkamp <christ...@lkamp.de>
Reviewed-by: NeilBrown <n...@brown.com>
---
drivers/staging/mt7621-mmc/sd.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/mt7621-mmc/sd.c b/drivers/staging/mt7621-mmc/sd.c
index f11eb1fe3f6a..e100c17a020c 100644
--- a/drivers/staging/mt7621-mmc/sd.c
+++ b/drivers/staging/mt7621-mmc/sd.c
@@ -1360,7 +1360,7 @@ static int msdc_do_request(struct mmc_host *mmc, struct
mmc_request *mrq)
u32 base = host->base;
//u32 intsts = 0;
unsigned int left = 0;
- int dma = 0, read = 1, dir = DMA_FROM_DEVICE, send_type = 0;
+ int dma = 0, read = 1, send_type = 0;
#define SND_DAT 0
#define SND_CMD 1
@@ -1422,9 +1422,9 @@ static int msdc_do_request(struct mmc_host *mmc, struct
mmc_request *mrq)
if (msdc_command_start(host, cmd, 1, CMD_TIMEOUT) != 0)
goto done;
- dir = read ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
data->sg_count = dma_map_sg(mmc_dev(mmc), data->sg,
- data->sg_len, dir);
+ data->sg_len,
+ mmc_get_dma_dir(data));
msdc_dma_setup(host, &host->dma, data->sg,
data->sg_count);
@@ -1505,7 +1505,8 @@ static int msdc_do_request(struct mmc_host *mmc, struct
mmc_request *mrq)
host->dma_xfer = 0;
if (dma != 0) {
msdc_dma_off();
- dma_unmap_sg(mmc_dev(mmc), data->sg, data->sg_len, dir);
+ dma_unmap_sg(mmc_dev(mmc), data->sg, data->sg_len,
+ mmc_get_dma_dir(data));
}
host->blksz = 0;
--
2.16.1
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