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staging: mt7621-mmc: Replace dma dir with mmc_get_dma_dir

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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 <christian@lkamp.de>
Reviewed-by: NeilBrown <neil@brown.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christian Lütke-Stetzkamp 2018-04-24 20:01:25 +02:00 committed by Greg Kroah-Hartman
parent c302214c9d
commit 78f350830e
1 changed files with 5 additions and 4 deletions
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9
drivers/staging/mt7621-mmc/sd.c
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@ -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 @@ done:
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;