From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laxman Dewangan Subject: [PATCH 1/4] pwm: tegra: Use DIV_ROUND_CLOSEST_ULL() instead of local implementation Date: Wed, 5 Apr 2017 19:43:43 +0530 Message-ID: <1491401626-31303-2-git-send-email-ldewangan@nvidia.com> References: <1491401626-31303-1-git-send-email-ldewangan@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1491401626-31303-1-git-send-email-ldewangan@nvidia.com> Sender: linux-kernel-owner@vger.kernel.org To: thierry.reding@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com Cc: jonathanh@nvidia.com, linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Laxman Dewangan List-Id: linux-tegra@vger.kernel.org Use macro DIV_ROUND_CLOSEST_ULL() for 64bit division to closet one instead of implementing the same locally. This increase readability. Signed-off-by: Laxman Dewangan --- drivers/pwm/pwm-tegra.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c index e464784..0a688da 100644 --- a/drivers/pwm/pwm-tegra.c +++ b/drivers/pwm/pwm-tegra.c @@ -85,8 +85,7 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, * nearest integer during division. */ c *= (1 << PWM_DUTY_WIDTH); - c += period_ns / 2; - do_div(c, period_ns); + c = DIV_ROUND_CLOSEST_ULL(c, period_ns); val = (u32)c << PWM_DUTY_SHIFT; -- 2.1.4 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755632AbdDEOeM (ORCPT ); Wed, 5 Apr 2017 10:34:12 -0400 Received: from hqemgate15.nvidia.com ([216.228.121.64]:3765 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753570AbdDEOcW (ORCPT ); Wed, 5 Apr 2017 10:32:22 -0400 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Wed, 05 Apr 2017 07:28:54 -0700 From: Laxman Dewangan To: , , CC: , , , , , Laxman Dewangan Subject: [PATCH 1/4] pwm: tegra: Use DIV_ROUND_CLOSEST_ULL() instead of local implementation Date: Wed, 5 Apr 2017 19:43:43 +0530 Message-ID: <1491401626-31303-2-git-send-email-ldewangan@nvidia.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1491401626-31303-1-git-send-email-ldewangan@nvidia.com> References: <1491401626-31303-1-git-send-email-ldewangan@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use macro DIV_ROUND_CLOSEST_ULL() for 64bit division to closet one instead of implementing the same locally. This increase readability. Signed-off-by: Laxman Dewangan --- drivers/pwm/pwm-tegra.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c index e464784..0a688da 100644 --- a/drivers/pwm/pwm-tegra.c +++ b/drivers/pwm/pwm-tegra.c @@ -85,8 +85,7 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, * nearest integer during division. */ c *= (1 << PWM_DUTY_WIDTH); - c += period_ns / 2; - do_div(c, period_ns); + c = DIV_ROUND_CLOSEST_ULL(c, period_ns); val = (u32)c << PWM_DUTY_SHIFT; -- 2.1.4