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From: Axel Lin <axel.lin@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Jonghwan Choi <jhbird.choi@gmail.com>,
	Haojian Zhuang <haojian.zhuang@marvell.com>,
	Mark Brown <broonie@opensource.wolfsonmicro.com>,
	Liam Girdwood <lrg@ti.com>
Subject: [PATCH] regulator: max8649: Use DIV_ROUND_UP macro to calculate selector
Date: Thu, 08 Mar 2012 10:05:24 +0800	[thread overview]
Message-ID: <1331172324.14592.3.camel@phoenix> (raw)

Use DIV_ROUND_UP macro for better readability.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
 drivers/regulator/max8649.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c
index f724644..824c650 100644
--- a/drivers/regulator/max8649.c
+++ b/drivers/regulator/max8649.c
@@ -101,8 +101,7 @@ static int max8649_set_voltage(struct regulator_dev *rdev,
 			min_uV, max_uV);
 		return -EINVAL;
 	}
-	data = (min_uV - MAX8649_DCDC_VMIN + MAX8649_DCDC_STEP - 1)
-		/ MAX8649_DCDC_STEP;
+	data = DIV_ROUND_UP(min_uV - MAX8649_DCDC_VMIN, MAX8649_DCDC_STEP);
 	mask = MAX8649_VOL_MASK;
 	*selector = data & mask;
 
-- 
1.7.5.4




             reply	other threads:[~2012-03-08  2:05 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-08  2:05 Axel Lin [this message]
2012-03-08 18:07 ` [PATCH] regulator: max8649: Use DIV_ROUND_UP macro to calculate selector Mark Brown

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