[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: Russell King <rmk+kernel@arm.linux.org.uk>
git-mirror · Jan 9, 2006 · 788ee7b · 788ee7b
1 parent cfa7f52
commit 788ee7b
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Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/drivers/mmc/mmc_block.c b/drivers/mmc/mmc_block.c
@@ -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);

diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
@@ -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;