From: Tony Lindgren <tony@atomide.com>
Date: Thu, 11 Aug 2005 14:02:01 +0000 (-0700)
Subject: ARM: OMAP: Fix writes on some MMC cards
X-Git-Tag: v2.6.13-omap1~28^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f401908c5761e7c077f6c735abdcac037c281d9;p=pandora-kernel.git

ARM: OMAP: Fix writes on some MMC cards

Some MMC cards don't set the R1_READY_FOR_DATA bit if EOFB
interrupt comes first. In this case we need to mask R1_READY_FOR_DATA
to avoid polling card status forever.
---

diff --git a/drivers/mmc/mmc_block.c b/drivers/mmc/mmc_block.c
index 808f9132011d..09efec1790c7 100644
--- a/drivers/mmc/mmc_block.c
+++ b/drivers/mmc/mmc_block.c
@@ -270,6 +270,10 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 			goto cmd_fail;
 		}
 
+		/* No need to check card status after a read */
+		if (rq_data_dir(req) == READ)
+			goto card_ready;
+
 		do {
 			int err;
 
@@ -299,6 +303,8 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 			goto cmd_err;
 #endif
 
+	card_ready:
+
 		/*
 		 * A block was successfully transferred.
 		 */
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