From: Ludovic Barre <ludovic.barre@st.com>
Date: Wed, 7 Nov 2018 09:30:40 +0000 (+0100)
Subject: mmc: mmci: send stop command if sbc error issue
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=09b4f706736fb9f9af763d8af41bf6f99944dc0c;p=openwrt%2Fstaging%2Fblogic.git

mmc: mmci: send stop command if sbc error issue

Refer to "4.15 set block count command" of sd specification:
Host needs to issue CMD12 if any error is detected in
the CMD18 and CMD25 operations.

In sbc case, the data->stop is fill by framework.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 82bab35fff41..13fa640d86d6 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1190,11 +1190,10 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data,
 			/* The error clause is handled above, success! */
 			data->bytes_xfered = data->blksz * data->blocks;
 
-		if (!data->stop || host->mrq->sbc) {
+		if (!data->stop || (host->mrq->sbc && !data->error))
 			mmci_request_end(host, data->mrq);
-		} else {
+		else
 			mmci_start_command(host, data->stop, 0);
-		}
 	}
 }