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Commit 788ee7b0 authored by Russell King's avatar Russell King Committed by Russell King
Browse files

[MMC] Add DATA_MULTI flag 



Some hosts need to know that a transfer will be multi-block.
Add a data flag to indicate multiple data block transfers.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent cfa7f521

drivers/mmc/mmc_block.c

+7 −1
Original line number Diff line number Diff line
@@ -200,7 +200,13 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) 
			brq.data.flags |= MMC_DATA_WRITE;

			brq.data.blocks = 1;

		}

		brq.mrq.stop = brq.data.blocks > 1 ? &brq.stop : NULL;



		if (brq.data.blocks > 1) {

			brq.data.flags |= MMC_DATA_MULTI;

			brq.mrq.stop = &brq.stop;

		} else {

			brq.mrq.stop = NULL;

		}



		brq.data.sg = mq->sg;

		brq.data.sg_len = blk_rq_map_sg(req->q, req, brq.data.sg);

include/linux/mmc/mmc.h

+1 −0
Original line number Diff line number Diff line
@@ -64,6 +64,7 @@ struct mmc_data { 
#define MMC_DATA_WRITE	(1 << 8)

#define MMC_DATA_READ	(1 << 9)

#define MMC_DATA_STREAM	(1 << 10)

#define MMC_DATA_MULTI	(1 << 11)



	unsigned int		bytes_xfered;