From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751449Ab1HBEzM (ORCPT ); Tue, 2 Aug 2011 00:55:12 -0400 Received: from mail-iy0-f174.google.com ([209.85.210.174]:60549 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750808Ab1HBEzG (ORCPT ); Tue, 2 Aug 2011 00:55:06 -0400 Subject: [PATCH] regulator: Ensure enough enable time for max8649 From: Axel Lin To: linux-kernel@vger.kernel.org Cc: Haojian Zhuang , Liam Girdwood , Mark Brown Content-Type: text/plain; charset="UTF-8" Date: Tue, 02 Aug 2011 12:54:56 +0800 Message-ID: <1312260896.6161.1.camel@phoenix> Mime-Version: 1.0 X-Mailer: Evolution 2.32.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Integer division may truncate the result, thus max8649_enable_time() may return slightly shorter enable time. This patch fixes it. Signed-off-by: Axel Lin --- drivers/regulator/max8649.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c index 30eb9e5..1062cf9 100644 --- a/drivers/regulator/max8649.c +++ b/drivers/regulator/max8649.c @@ -221,7 +221,7 @@ static int max8649_enable_time(struct regulator_dev *rdev) ret = (ret & MAX8649_RAMP_MASK) >> 5; rate = (32 * 1000) >> ret; /* uV/uS */ - return (voltage / rate); + return DIV_ROUND_UP(voltage, rate); } static int max8649_set_mode(struct regulator_dev *rdev, unsigned int mode) -- 1.7.4.1