From patchwork Wed Sep 11 06:41:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Ferre X-Patchwork-Id: 11140375 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 F241B14ED for ; Wed, 11 Sep 2019 06:42:37 +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 CF8AD21A4C for ; Wed, 11 Sep 2019 06:42:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Yx/nYLQU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CF8AD21A4C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=microchip.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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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:In-Reply-To:References: List-Owner; bh=6RKdV8oUwRA7AlVu96/VqFVPVI2ZCwK2zN0pE0D9ctU=; b=Yx/nYLQUnD69r1 6IrLHhb6YnKFxQbwxQ+U5EPWa5DCZMk0fTjj5A0Qluddzrf64v+5RsrkTD2gbiXNtlGekA+1wAmBa dSbqQv4ZxHybGAhw5v+8YoB2J+cieG0/qcmsJpIXTxJB0Zn4hdXpCLP1MoctzBc2DB3woXoSgwMeh L6jLnSpqE2Nu3/JPz8Oy1b9dEoNmppG8PzA6ZmiOE3kT1MkcWu6sLks4z1ztHGmoVlx8TZPdMPu9D uTGmO2EycnFvumtwQG6KyCsWxsAKJTP3aeFVcC313hkmBPH1W7IIshr2wfVkdWAP62LJl4Nv2OGXN r6bWh559Vo3OpR3+AlVA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i7wKm-0002gL-Cy; Wed, 11 Sep 2019 06:42:32 +0000 Received: from esa4.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i7wKj-0002ff-47 for linux-arm-kernel@lists.infradead.org; Wed, 11 Sep 2019 06:42:30 +0000 Received-SPF: Pass (esa4.microchip.iphmx.com: domain of Nicolas.Ferre@microchip.com designates 198.175.253.82 as permitted sender) identity=mailfrom; client-ip=198.175.253.82; receiver=esa4.microchip.iphmx.com; envelope-from="Nicolas.Ferre@microchip.com"; x-sender="Nicolas.Ferre@microchip.com"; x-conformance=spf_only; x-record-type="v=spf1"; x-record-text="v=spf1 mx a:ushub1.microchip.com a:smtpout.microchip.com a:mx1.microchip.iphmx.com a:mx2.microchip.iphmx.com include:servers.mcsv.net include:mktomail.com include:spf.protection.outlook.com ~all" Received-SPF: None (esa4.microchip.iphmx.com: no sender authenticity information available from domain of postmaster@email.microchip.com) identity=helo; client-ip=198.175.253.82; receiver=esa4.microchip.iphmx.com; envelope-from="Nicolas.Ferre@microchip.com"; x-sender="postmaster@email.microchip.com"; x-conformance=spf_only Authentication-Results: esa4.microchip.iphmx.com; dkim=none (message not signed) header.i=none; spf=Pass smtp.mailfrom=Nicolas.Ferre@microchip.com; spf=None smtp.helo=postmaster@email.microchip.com; dmarc=pass (p=none dis=none) d=microchip.com IronPort-SDR: Kr0fy78TWTx/7uyhYaTb4pVf1lS3SI1D22i5ivt/iH+3LbcssZwAHRQ1u7De59PHiJBbl/kjNL VIGEe8LL2gvSflr8MoTYVgfowqHMhgVbrEYKCBSjuDc4DVkHBTmWm8KMRwUW2fnNAe0Y77Z7pI c76IsEWJaMBOVNPFV2jqBa3kGA7zQtliXGO/RtHvR/327vfGkkLd42wN8FGWSybnjThK36hmhy YcJNRnvcybQXd+ZQZin0zAMxoNd1T1JXk4iMVm/G45JKbVa7gpZ3tmAPqEJYMYPc4obOOKu+8q 6PM= X-IronPort-AV: E=Sophos;i="5.64,492,1559545200"; d="scan'208";a="47503524" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 10 Sep 2019 23:42:26 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Tue, 10 Sep 2019 23:42:25 -0700 Received: from tenerife.corp.atmel.com (10.10.85.251) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.1713.5 via Frontend Transport; Tue, 10 Sep 2019 23:42:24 -0700 From: Nicolas Ferre To: , , , Subject: [PATCH 0/3] USB: host: ohci-at91: tailor power consumption Date: Wed, 11 Sep 2019 08:41:51 +0200 Message-ID: <20190911064154.28633-1-nicolas.ferre@microchip.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190910_234229_199293_4FC92C31 X-CRM114-Status: UNSURE ( 6.17 ) 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 [68.232.154.123 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: Boris.Krasnovskiy@lairdconnect.com, Alexandre Belloni , linux-usb@vger.kernel.org, Ludovic Desroches Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Following a set of experiments we found areas of improvement for OHCI power consumption (and associated USB analog cells). This enhances the shutdown of residual power consumption in case of Linux suspend/resume and removal of the driver (when compiled as a module). Best regards, Nicolas Boris Krasnovskiy (2): USB: host: ohci-at91: completely shutdown the controller in at91_stop_hc() USB: host: ohci-at91: resume: balance the clock start call Nicolas Ferre (1): USB: host: ohci-at91: suspend: delay needed before to stop clocks drivers/usb/host/ohci-at91.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) Acked-by: Alan Stern