From: Ulf Hansson <ulf.hansson@stericsson.com>
Date: Tue, 13 Dec 2011 15:51:04 +0000 (+0100)
Subject: ARM: 7214/1: mmc: mmci: Fixup handling of MCI_STARTBITERR
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b63038d6f4ca5d1849ce01d9fc5bb9cb426dec73;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

ARM: 7214/1: mmc: mmci: Fixup handling of MCI_STARTBITERR

The interrupt was previously enabled and then correctly cleared.
Now we also handle it correctly.

Cc: <stable@vger.kernel.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 50b5f9926f64..826598115abd 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -675,7 +675,8 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data,
 	      unsigned int status)
 {
 	/* First check for errors */
-	if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN|MCI_RXOVERRUN)) {
+	if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_STARTBITERR|
+		      MCI_TXUNDERRUN|MCI_RXOVERRUN)) {
 		u32 remain, success;
 
 		/* Terminate the DMA transfer */
@@ -955,8 +956,9 @@ static irqreturn_t mmci_irq(int irq, void *dev_id)
 		dev_dbg(mmc_dev(host->mmc), "irq0 (data+cmd) %08x\n", status);
 
 		data = host->data;
-		if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN|
-			      MCI_RXOVERRUN|MCI_DATAEND|MCI_DATABLOCKEND) && data)
+		if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_STARTBITERR|
+			      MCI_TXUNDERRUN|MCI_RXOVERRUN|MCI_DATAEND|
+			      MCI_DATABLOCKEND) && data)
 			mmci_data_irq(host, data, status);
 
 		cmd = host->cmd;