From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DBA3EC3A5A9 for ; Mon, 4 May 2020 18:50:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BAFA92073E for ; Mon, 4 May 2020 18:50:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727800AbgEDSuz (ORCPT ); Mon, 4 May 2020 14:50:55 -0400 Received: from alexa-out-sd-02.qualcomm.com ([199.106.114.39]:7667 "EHLO alexa-out-sd-02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727906AbgEDSuX (ORCPT ); Mon, 4 May 2020 14:50:23 -0400 Received: from unknown (HELO ironmsg05-sd.qualcomm.com) ([10.53.140.145]) by alexa-out-sd-02.qualcomm.com with ESMTP; 04 May 2020 11:50:20 -0700 Received: from gurus-linux.qualcomm.com ([10.46.162.81]) by ironmsg05-sd.qualcomm.com with ESMTP; 04 May 2020 11:50:20 -0700 Received: by gurus-linux.qualcomm.com (Postfix, from userid 383780) id 71DB74D38; Mon, 4 May 2020 11:50:20 -0700 (PDT) From: Guru Das Srinagesh To: linux-pwm@vger.kernel.org, Thierry Reding , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Cc: Subbaraman Narayanamurthy , David Collins , linux-kernel@vger.kernel.org, Joe Perches , Arnd Bergmann , Geert Uytterhoeven , Guenter Roeck , Daniel Thompson , Dan Carpenter , Guru Das Srinagesh Subject: [RESEND PATCH v14 09/11] backlight: pwm_bl: Use 64-bit division function Date: Mon, 4 May 2020 11:50:15 -0700 Message-Id: <3e2a15330b8dd9c828586bfbbbb4aa2b482212de.1588616856.git.gurus@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since the PWM framework is switching struct pwm_state.period's datatype to u64, prepare for this transition by using div_u64 to handle a 64-bit dividend instead of a straight division operation. Signed-off-by: Guru Das Srinagesh Reviewed-by: Daniel Thompson Acked-by: Lee Jones --- drivers/video/backlight/pwm_bl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index 82b8d75..464baad 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -606,7 +606,8 @@ static int pwm_backlight_probe(struct platform_device *pdev) pb->scale = data->max_brightness; } - pb->lth_brightness = data->lth_brightness * (state.period / pb->scale); + pb->lth_brightness = data->lth_brightness * (div_u64(state.period, + pb->scale)); props.type = BACKLIGHT_RAW; props.max_brightness = data->max_brightness; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project