linux-kernel - [PATCH 74/75] [SCSI] nsp32: use mdelay instead of large udelay constants

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Message-Id: <1376476624-10011-75-git-send-email-luis.henriques@canonical.com>
Date:	Wed, 14 Aug 2013 11:37:03 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Arnd Bergmann <arnd@...db.de>,
	YOKOTA Hiroshi <yokota@...lab.is.tsukuba.ac.jp>,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	linux-scsi@...r.kernel.org,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 74/75] [SCSI] nsp32: use mdelay instead of large udelay constants

3.5.7.19 -stable review patch.  If anyone has any objections, please let me know.

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

From: Arnd Bergmann <arnd@...db.de>

commit b497ceb964a80ebada3b9b3cea4261409039e25a upstream.

ARM cannot handle udelay for more than 2 miliseconds, so we
should use mdelay instead for those.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Acked-by: GOTO Masanori <gotom@...ian.or.jp>
Cc: YOKOTA Hiroshi <yokota@...lab.is.tsukuba.ac.jp>
Cc: "James E.J. Bottomley" <JBottomley@...allels.com>
Cc: linux-scsi@...r.kernel.org
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/scsi/nsp32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c
index 62b6168..e705ed3 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -2926,7 +2926,7 @@ static void nsp32_do_bus_reset(nsp32_hw_data *data)
 	 * reset SCSI bus
 	 */
 	nsp32_write1(base, SCSI_BUS_CONTROL, BUSCTL_RST);
-	udelay(RESET_HOLD_TIME);
+	mdelay(RESET_HOLD_TIME / 1000);
 	nsp32_write1(base, SCSI_BUS_CONTROL, 0);
 	for(i = 0; i < 5; i++) {
 		intrdat = nsp32_read2(base, IRQ_STATUS); /* dummy read */
-- 
1.8.3.2

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