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mmc: core: add mmc_get_dma_dir

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Add function for determining DMA direction to core.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Heiner Kallweit 2017-03-26 20:41:32 +02:00 committed by Ulf Hansson
parent e5e4a3eb13
commit 6335d68349
1 changed files with 6 additions and 0 deletions
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6
include/linux/mmc/host.h
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@ -17,6 +17,7 @@
#include <linux/mmc/core.h>
#include <linux/mmc/card.h>
#include <linux/mmc/pm.h>
#include <linux/dma-direction.h>
struct mmc_ios {
unsigned int clock; /* clock rate */
@ -499,6 +500,11 @@ static inline bool mmc_can_retune(struct mmc_host *host)
return host->can_retune == 1;
}
static inline enum dma_data_direction mmc_get_dma_dir(struct mmc_data *data)
{
return data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
}
int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error);
int mmc_abort_tuning(struct mmc_host *host, u32 opcode);