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spi/s3c64xx: use correct dma_transfer_direction type 

There is a subtle difference between dma_transfer_direction and
dma_data_direction: the former is used by the dmaengine framework,
while the latter is used by the dma-mapping API. Although the
purpose is comparable, the actual values are different and must
not be mixed. In this case, the driver just wants to use
dma_transfer_direction.

Without this patch, building s3c6400_defconfig results in:

drivers/spi/spi-s3c64xx.c: In function 's3c64xx_spi_dmacb':
drivers/spi/spi-s3c64xx.c:239:21: warning: comparison between
	'enum dma_data_direction' and 'enum dma_transfer_direction' [-Wenum-compare]

As pointed out by Kukjin Kim, this also changes the use of constants
from DMA_FROM_DEVICE/DMA_TO_DEVICE to DMA_DEV_TO_MEM/DMA_MEM_TO_DEV.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: spi-devel-general@lists.sourceforge.net
This commit is contained in:
Arnd Bergmann 2012-04-30 16:31:27 +00:00
parent fdc858a466
commit c10356b984
1 changed files with 3 additions and 3 deletions
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6
drivers/spi/spi-s3c64xx.c
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@ -132,7 +132,7 @@
struct s3c64xx_spi_dma_data {
unsigned ch;
enum dma_data_direction direction;
enum dma_transfer_direction direction;
enum dma_ch dmach;
struct property *dma_prop;
};
@ -1065,11 +1065,11 @@ static int __devinit s3c64xx_spi_get_dmares(
if (tx) {
dma_data = &sdd->tx_dma;
dma_data->direction = DMA_TO_DEVICE;
dma_data->direction = DMA_MEM_TO_DEV;
chan_str = "tx";
} else {
dma_data = &sdd->rx_dma;
dma_data->direction = DMA_FROM_DEVICE;
dma_data->direction = DMA_DEV_TO_MEM;
chan_str = "rx";
}