From patchwork Mon Sep 21 06:13:13 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Fu, Zhonghui" X-Patchwork-Id: 7227811 Return-Path: X-Original-To: patchwork-linux-mmc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 040E9BEEC1 for ; Mon, 21 Sep 2015 06:13:24 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3C89B2085D for ; Mon, 21 Sep 2015 06:13:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3DD1C2085B for ; Mon, 21 Sep 2015 06:13:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755932AbbIUGNV (ORCPT ); Mon, 21 Sep 2015 02:13:21 -0400 Received: from mga01.intel.com ([192.55.52.88]:55325 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755746AbbIUGNU (ORCPT ); Mon, 21 Sep 2015 02:13:20 -0400 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga101.fm.intel.com with ESMTP; 20 Sep 2015 23:13:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,566,1437462000"; d="scan'208";a="565520577" Received: from mli31-mobl2.ccr.corp.intel.com (HELO [10.255.30.152]) ([10.255.30.152]) by FMSMGA003.fm.intel.com with ESMTP; 20 Sep 2015 23:13:14 -0700 Message-ID: <55FF9FF9.5080601@linux.intel.com> Date: Mon, 21 Sep 2015 14:13:13 +0800 From: "Fu, Zhonghui" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Ulf Hansson , Adrian Hunter , linus.walleij@linaro.org, Markus.Niebel@tq-group.com, lars@metafoo.de, s.hauer@pengutronix.de, kristina.martsenko@gmail.com CC: linux-mmc , "linux-kernel@vger.kernel.org" Subject: [PATCH v2] mmc: enable mmc host device to suspend/resume asynchronously Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Now, PM core supports asynchronous suspend/resume mode for devices during system suspend/resume, and the power state transition of one device may be completed in separate kernel thread. PM core ensures all power state transition timing dependency between devices. This patch enables mmc host device to suspend/resume asynchronously. This will take advantage of multicore and improve system suspend/resume speed. Signed-off-by: Zhonghui Fu --- Changes in v2: - Amend commit message. drivers/mmc/core/host.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index abd933b..8dfc011 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -577,6 +577,7 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) host->class_dev.parent = dev; host->class_dev.class = &mmc_host_class; device_initialize(&host->class_dev); + device_enable_async_suspend(&host->class_dev); if (mmc_gpio_alloc(host)) { put_device(&host->class_dev);