linux-kernel - RE: [PATCH 1/3] regulator: ad5398: Use DIV_ROUND

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Message-ID: <DB904C5425BA6F4E8424B3B51A1414D16F2417DBB1@NWD2CMBX1.ad.analog.com>
Date:	Fri, 2 Mar 2012 03:57:00 -0500
From:	"Zhang, Sonic" <Sonic.Zhang@...log.com>
To:	Axel Lin <axel.lin@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	Liam Girdwood <lrg@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: RE: [PATCH 1/3] regulator: ad5398: Use DIV_ROUND_UP macro to
 calculate selector

Acked-by: Sonic Zhang <sonic.zhang@...log.com>

-----Original Message-----
From: Axel Lin [mailto:axel.lin@...il.com]
Sent: Friday, March 02, 2012 4:21 PM
To: linux-kernel@...r.kernel.org
Cc: Zhang, Sonic; Liam Girdwood; Mark Brown
Subject: [PATCH 1/3] regulator: ad5398: Use DIV_ROUND_UP macro to calculate selector

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/regulator/ad5398.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/ad5398.c b/drivers/regulator/ad5398.c
index 483c809..26d23ad 100644
--- a/drivers/regulator/ad5398.c
+++ b/drivers/regulator/ad5398.c
@@ -94,8 +94,8 @@ static int ad5398_set_current_limit(struct regulator_dev *rdev, int min_uA, int
        if (max_uA > chip->max_uA || max_uA < chip->min_uA)
                return -EINVAL;

-       selector = ((min_uA - chip->min_uA) * chip->current_level +
-                       range_uA - 1) / range_uA;
+       selector = DIV_ROUND_UP((min_uA - chip->min_uA) * chip->current_level,
+                               range_uA);
        if (ad5398_calc_current(chip, selector) > max_uA)
                return -EINVAL;

--
1.7.5.4