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Message-Id: <1392138636-29240-3-git-send-email-pawel.moll@arm.com>
Date: Tue, 11 Feb 2014 17:10:26 +0000
From: Pawel Moll <pawel.moll@....com>
To: arm@...nel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Cc: Pawel Moll <pawel.moll@....com>,
Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
David Woodhouse <dwmw2@...radead.org>
Subject: [PATCH 02/12] power/reset: vexpress: Use udelay instead of timers
At this stage of system shutdown procedure the jiffies may
not be updated anymore, so just use udelay instead.
Cc: Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
Cc: David Woodhouse <dwmw2@...radead.org>
Signed-off-by: Pawel Moll <pawel.moll@....com>
---
drivers/power/reset/vexpress-poweroff.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/drivers/power/reset/vexpress-poweroff.c b/drivers/power/reset/vexpress-poweroff.c
index 37e7799..195235c 100644
--- a/drivers/power/reset/vexpress-poweroff.c
+++ b/drivers/power/reset/vexpress-poweroff.c
@@ -11,7 +11,7 @@
* Copyright (C) 2012 ARM Limited
*/
-#include <linux/jiffies.h>
+#include <linux/delay.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
@@ -26,13 +26,9 @@ static void vexpress_reset_do(struct device *dev, const char *what)
struct regmap *reg = dev_get_drvdata(dev);
if (reg) {
- unsigned long timeout;
-
err = regmap_write(reg, 0, 0);
-
- timeout = jiffies + HZ;
- while (time_before(jiffies, timeout))
- cpu_relax();
+ if (!err)
+ mdelay(1000);
}
dev_emerg(dev, "Unable to %s (%d)\n", what, err);
--
1.8.3.2
--
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