From patchwork Thu Oct 31 21:34:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 11221871 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 559131599 for ; Thu, 31 Oct 2019 21:35:21 +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 0BE432086D for ; Thu, 31 Oct 2019 21:35:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="DjyDl+Sn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0BE432086D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.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=Q8/ngSRqtXSumolPZP9QBa60VxxCDCHr7029aJc1pcM=; b=DjyDl+SnH9VMTIFyegL4RYwtv/ Ib8gbYDdpITgY/giOn14rNPBr6DjIuxK2BheT/bAKH08AKlNTI1DRdoWGYhi3OMPp+SV8hRndrMsA IsFFD0tpk5BfPbBmY3W1zps+d4M4wCjBJLH5mcT4tgEJPPbucqXjUqJ9ZhzA9acH0V8UNCtUs+vQ4 wz5OmLs55F6PBAAfMm7E2H5DC8rDTfgBpcmMVRDfl707ZBhhJcb/KJcFvbuE5t32gXwTJ7sVxoUgn 4NkDtMY4vdY4S74ZNOG8R6HJrypldTaDF2VEM+EtZBTGSNpin8O3nyefnPvEhggfXotxddLoyrQPe 8prdjScA==; 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 1iQI6C-0005KV-17; Thu, 31 Oct 2019 21:35:20 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iQI5S-0003dn-MD for linux-arm-kernel@lists.infradead.org; Thu, 31 Oct 2019 21:34:36 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 81B4C1A057E; Thu, 31 Oct 2019 22:34:33 +0100 (CET) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 741951A0214; Thu, 31 Oct 2019 22:34:33 +0100 (CET) Received: from fsr-ub1864-112.ea.freescale.net (fsr-ub1864-112.ea.freescale.net [10.171.82.98]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id C6BE0205E9; Thu, 31 Oct 2019 22:34:32 +0100 (CET) From: Leonard Crestez To: MyungJoo Ham , Kyungmin Park , "Rafael J. Wysocki" Subject: [PATCH v10 02/11] PM / devfreq: Set scaling_max_freq to max on OPP notifier error Date: Thu, 31 Oct 2019 23:34:19 +0200 Message-Id: X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191031_143434_859856_FE539FAD X-CRM114-Status: UNSURE ( 9.88 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [92.121.34.13 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 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: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= , Abel Vesa , Saravana Kannan , linux-pm@vger.kernel.org, Viresh Kumar , NXP Linux Team , Krzysztof Kozlowski , Chanwoo Choi , Matthias Kaehlcke , Alexandre Bailon , Georgi Djakov , linux-arm-kernel@lists.infradead.org, Jacky Bai MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The devfreq_notifier_call functions will update scaling_min_freq and scaling_max_freq when the OPP table is updated. If fetching the maximum frequency fails then scaling_max_freq remains set to zero which is confusing. Set to ULONG_MAX instead so we don't need special handling for this case in other places. Signed-off-by: Leonard Crestez Reviewed-by: Matthias Kaehlcke Reviewed-by: Chanwoo Choi --- drivers/devfreq/devfreq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index b65faa1a2baa..715127f1cda5 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -557,12 +557,14 @@ static int devfreq_notifier_call(struct notifier_block *nb, unsigned long type, devfreq->scaling_min_freq = find_available_min_freq(devfreq); if (!devfreq->scaling_min_freq) goto out; devfreq->scaling_max_freq = find_available_max_freq(devfreq); - if (!devfreq->scaling_max_freq) + if (!devfreq->scaling_max_freq) { + devfreq->scaling_max_freq = ULONG_MAX; goto out; + } err = update_devfreq(devfreq); out: mutex_unlock(&devfreq->lock);