[patch 059/114] mmc: fix data timeout for SEND_EXT_CSD

[Greg KH]

2.6.28-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Adrian Hunter <adrian.hunter@xxxxxxxxx>

commit cda56ac29f2d8288d62978272856884d26e0b47b upstream.

Commit 0d3e0460f307e84904968aad6cff97bd688583d8
"MMC: CSD and CID timeout values" inadvertently broke
the timeout for the MMC command SEND_EXT_CSD.

This patch puts it back again.

Depending on the characteristics of the controller,
this bug may prevent the use of MMC cards.

Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Signed-off-by: Pierre Ossman <drzeus@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/mmc/core/mmc_ops.c |   15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -248,12 +248,15 @@ mmc_send_cxd_data(struct mmc_card *card,
 
 	sg_init_one(&sg, data_buf, len);
 
-	/*
-	 * The spec states that CSR and CID accesses have a timeout
-	 * of 64 clock cycles.
-	 */
-	data.timeout_ns = 0;
-	data.timeout_clks = 64;
+	if (opcode == MMC_SEND_CSD || opcode == MMC_SEND_CID) {
+		/*
+		 * The spec states that CSR and CID accesses have a timeout
+		 * of 64 clock cycles.
+		 */
+		data.timeout_ns = 0;
+		data.timeout_clks = 64;
+	} else
+		mmc_set_data_timeout(&data, card);
 
 	mmc_wait_for_req(host, &mrq);
 


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