From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Tue, 11 May 2010 21:06:50 +0000 (-0700)
Subject: mmc: atmel-mci: remove data error interrupt after xfer
X-Git-Tag: firefly_0821_release~10186^2~1612
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ee7a0b92fcc8d1ab43cff3dd75baeb2f646a93ff;p=firefly-linux-kernel-4.4.55.git

mmc: atmel-mci: remove data error interrupt after xfer

commit abc2c9fdf636c4335a8d72ac3c5ae152bca44b68 upstream.

Disable data error interrupts while we are actually recording that there
is not such errors.  This will prevent, in some cases, the warning message
printed at new request queuing (in atmci_start_request()).

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 67a0fe0e2a0f..8faa703516b5 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -1230,6 +1230,7 @@ static void atmci_tasklet_func(unsigned long priv)
 			} else {
 				data->bytes_xfered = data->blocks * data->blksz;
 				data->error = 0;
+				mci_writel(host, IDR, ATMCI_DATA_ERROR_FLAGS);
 			}
 
 			if (!data->stop) {