From patchwork Fri Feb 19 16:00:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abel Vesa X-Patchwork-Id: 12095759 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=-16.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 A3CC8C433DB for ; Fri, 19 Feb 2021 16:05:04 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 4840764EAF for ; Fri, 19 Feb 2021 16:05:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4840764EAF 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+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=merlin.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=PMQ34FCnu5mcwe9KiEKgbY3xU18/HgiV1cDWz2xgBMA=; b=zJoTCYs7vRyekyrTayoa2EvdPF sVmzBJTpNijiSP5fczok/3hGtztutfma+RuD3/WRpAu2WO6yUi9zaER8Fibdh5FuZCCgEov9njMJp 41NrZhGG8isNybyUGKVorGBV7zO8Q5VQepIwVvep8L5ZlJHbTYgbae/x6Gb+aBPvEAAr0lcrHxrrc Xec0gAWP7Gv0xy1DHl3CxaaeN6aFVLQ4LtR7jIsOuZMwI+9NcVGGI4cXkO99gKuPd82TMwCgn5bZ7 xlILjo/fIhLkohf2xQZBEk54LNLI6OJXfdfWWhTzxRCjRqcYDJk9GxPjOnT0HnGZYOKs9Cmq2n/cD ItSYXH1Q==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lD8Df-0007t8-48; Fri, 19 Feb 2021 16:01:27 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lD8DF-0007jl-LC for linux-arm-kernel@lists.infradead.org; Fri, 19 Feb 2021 16:01:07 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id CDF7A1A010D; Fri, 19 Feb 2021 17:01:00 +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 C078B1A00BF; Fri, 19 Feb 2021 17:01:00 +0100 (CET) Received: from fsr-ub1664-175.ea.freescale.net (fsr-ub1664-175.ea.freescale.net [10.171.82.40]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id 239A72042F; Fri, 19 Feb 2021 17:01:00 +0100 (CET) From: Abel Vesa To: Rob Herring , Shawn Guo , Sascha Hauer , Lucas Stach , Fabio Estevam , Chanwoo Choi , Georgi Djakov , Dong Aisheng , Peng Fan , Martin Kepplinger , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, Linux Kernel Mailing List Subject: [RFC 05/19] devfreq: imx8m-ddrc: Change governor to powersave Date: Fri, 19 Feb 2021 18:00:02 +0200 Message-Id: <1613750416-11901-6-git-send-email-abel.vesa@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1613750416-11901-1-git-send-email-abel.vesa@nxp.com> References: <1613750416-11901-1-git-send-email-abel.vesa@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210219_110101_984135_E8B1BD5A X-CRM114-Status: GOOD ( 12.54 ) 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: NXP Linux Team , Abel Vesa MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org By switching to powersave governor, we allow the imx8m-ddrc to always run at minimum rate needed by all the running masters. Signed-off-by: Abel Vesa Acked-by: Chanwoo Choi --- drivers/devfreq/imx8m-ddrc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/devfreq/imx8m-ddrc.c b/drivers/devfreq/imx8m-ddrc.c index bc82d3653bff..3a6c04ba4f2e 100644 --- a/drivers/devfreq/imx8m-ddrc.c +++ b/drivers/devfreq/imx8m-ddrc.c @@ -379,7 +379,7 @@ static int imx8m_ddrc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct imx8m_ddrc *priv; - const char *gov = DEVFREQ_GOV_USERSPACE; + const char *gov = DEVFREQ_GOV_POWERSAVE; int ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);