linux-kernel - [PATCH v2 05/21] atm: he: use msleep instead of large udelay constants

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Message-Id: <201304291513.27104.arnd@arndb.de>
Date:	Mon, 29 Apr 2013 15:13:26 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	"chas williams - CONTRACTOR" <chas@....nrl.navy.mil>
Cc:	"David Laight" <David.Laight@...lab.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-atm-general@...ts.sourceforge.net, netdev@...r.kernel.org
Subject: [PATCH v2 05/21] atm: he: use msleep instead of large udelay constants

>From a0ddf082821b064cc2d6a9bb90861f9b81a559a5 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@...db.de>
Date: Thu, 14 Mar 2013 15:21:36 +0100
Subject: [PATCH] atm: he: use mdelay instead of large udelay constants

ARM cannot handle udelay for more than 2 miliseconds, and
it is rather bad style to block the cpu for 16ms anyway,
so let's use msleep instead.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Cc: Chas Williams <chas@....nrl.navy.mil>
Cc: linux-atm-general@...ts.sourceforge.net
Cc: netdev@...r.kernel.org
---
diff --git a/drivers/atm/he.c b/drivers/atm/he.c
index d689126..507362a 100644
--- a/drivers/atm/he.c
+++ b/drivers/atm/he.c
@@ -1055,7 +1055,7 @@ static int he_start(struct atm_dev *dev)
 	he_writel(he_dev, 0x0, RESET_CNTL);
 	he_writel(he_dev, 0xff, RESET_CNTL);
 
-	udelay(16*1000);	/* 16 ms */
+	msleep(16);	/* 16 ms */
 	status = he_readl(he_dev, RESET_CNTL);
 	if ((status & BOARD_RST_STATUS) == 0) {
 		hprintk("reset failed\n");
--
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