linux-kernel - [PATCH 2/3 v2] regulator: Ensure enough delay time for enabling regulator

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Message-ID: <1288965092.2312.3.camel@phoenix>
Date:	Fri, 05 Nov 2010 21:51:32 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	Liam Girdwood <lrg@...mlogic.co.uk>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH 2/3 v2] regulator: Ensure enough delay time for enabling
 regulator

Integer division will truncate the result, this patch ensures we have
enough delay time for enabling regulator.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/regulator/core.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 5ee67ba..0ab5749 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1312,10 +1312,12 @@ static int _regulator_enable(struct regulator_dev *rdev)
 			if (ret < 0)
 				return ret;
 
-			if (delay >= 1000)
+			if (delay >= 1000) {
 				mdelay(delay / 1000);
-			else if (delay)
+				udelay(delay % 1000);
+			} else if (delay) {
 				udelay(delay);
+			}
 
 		} else if (ret < 0) {
 			printk(KERN_ERR "%s: is_enabled() failed for %s: %d\n",
-- 
1.7.0.4



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