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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 5DA6AC2D0FA for ; Wed, 13 May 2020 00:41:06 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3490220753 for ; Wed, 13 May 2020 00:41:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ET0vYXGt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3490220753 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=6QbjAtCFZ8DKwiDaEphJsysdpMr8Nyf39gTNEvQ9i5Q=; b=ET0vYXGtu4MSyKTPqYzEpvLYFq 7/jrrPn68ZmdiK4VgJcafPP8bg4imzZssNqcH0GmqZN81unAW8YPISSmIMTBMIp37Eb4/cN9SPwos uwh9X/tXWUgzSou3R5lRq+/TSBdF6KCEZ3Q0qmanGYT/xw3oyxq5EDTRddzwlEPZ0Oc50CGBZ2/W5 cdH8CrLUxwXjw77Kc7pbRcdpuxv5xqRDMuqRCpkIDiOx2TvMOi+RkYP0MKrAWcGUxME+xxen8eYaG vQTps2VH8ZCr720I2snHaCkuEGAE/OzyoE3o4Tf4BeqA7MvQJMMSMQuGAEw7248Od80Y4OxqddZN3 CPcj+6Ug==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYfSJ-000785-Ec; Wed, 13 May 2020 00:41:03 +0000 Received: from alexa-out-sd-01.qualcomm.com ([199.106.114.38]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYfRA-0003nv-8a for linux-arm-kernel@lists.infradead.org; Wed, 13 May 2020 00:39:53 +0000 Received: from unknown (HELO ironmsg05-sd.qualcomm.com) ([10.53.140.145]) by alexa-out-sd-01.qualcomm.com with ESMTP; 12 May 2020 17:39:48 -0700 Received: from gurus-linux.qualcomm.com ([10.46.162.81]) by ironmsg05-sd.qualcomm.com with ESMTP; 12 May 2020 17:39:47 -0700 Received: by gurus-linux.qualcomm.com (Postfix, from userid 383780) id E1E824D95; Tue, 12 May 2020 17:39:47 -0700 (PDT) From: Guru Das Srinagesh To: linux-pwm@vger.kernel.org, Thierry Reding , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Subject: [RESEND PATCH v14 09/11] backlight: pwm_bl: Use 64-bit division function Date: Tue, 12 May 2020 17:39:43 -0700 Message-Id: <24d6ba7dec636cdc67f089891ab8f830ba83d3ae.1589330178.git.gurus@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200512_173952_341703_788E66BC X-CRM114-Status: GOOD ( 11.04 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, Guru Das Srinagesh , Daniel Thompson , Arnd Bergmann , David Collins , Stephen Boyd , linux-kernel@vger.kernel.org, Geert Uytterhoeven , Dan Carpenter , Joe Perches , Subbaraman Narayanamurthy , Lee Jones , Guenter Roeck MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 8BF37C433DF for ; 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20 May 2020 15:56:06 -0700 Received: by gurus-linux.qualcomm.com (Postfix, from userid 383780) id D3FFE4D8D; Wed, 20 May 2020 15:56:06 -0700 (PDT) From: Guru Das Srinagesh To: linux-pwm@vger.kernel.org, Thierry Reding , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Subject: [RESEND PATCH v14 09/11] backlight: pwm_bl: Use 64-bit division function Date: Wed, 20 May 2020 15:56:02 -0700 Message-ID: <24d6ba7dec636cdc67f089891ab8f830ba83d3ae.1589330178.git.gurus@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200520_155618_579695_A684C86C X-CRM114-Status: GOOD ( 10.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, Guru Das Srinagesh , Daniel Thompson , Arnd Bergmann , David Collins , Stephen Boyd , linux-kernel@vger.kernel.org, Geert Uytterhoeven , Dan Carpenter , Joe Perches , Subbaraman Narayanamurthy , Lee Jones , Guenter Roeck MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Message-ID: <20200520225602.OM5Zn9TofbK_AYipP50yYT7hNNUzhk4BuUadaHKakG4@z> 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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel