From patchwork Mon Sep 21 04:30:41 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Fu, Zhonghui" X-Patchwork-Id: 7227711 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 BCD1ABEEC1 for ; Mon, 21 Sep 2015 04:30:50 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F380620675 for ; Mon, 21 Sep 2015 04:30:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0835920673 for ; Mon, 21 Sep 2015 04:30:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751505AbbIUEar (ORCPT ); Mon, 21 Sep 2015 00:30:47 -0400 Received: from mga03.intel.com ([134.134.136.65]:26461 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751401AbbIUEar (ORCPT ); Mon, 21 Sep 2015 00:30:47 -0400 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP; 20 Sep 2015 21:30:48 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,565,1437462000"; d="scan'208";a="773242316" Received: from mahongpe-mobl2.ccr.corp.intel.com (HELO [10.254.209.53]) ([10.254.209.53]) by orsmga001.jf.intel.com with ESMTP; 20 Sep 2015 21:30:44 -0700 Message-ID: <55FF87F1.1000209@linux.intel.com> Date: Mon, 21 Sep 2015 12:30:41 +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 , neilb@suse.de, Jaehoon Chung , afenkart@gmail.com, joe@perches.com CC: linux-mmc , "linux-kernel@vger.kernel.org" Subject: [PATCH v2] MMC/SDIO: enable SDIO 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, T_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 SDIO card and function devices 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/sdio.c | 4 ++++ 1 files changed, 4 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/sdio.c b/drivers/mmc/core/sdio.c index b91abed..6719b77 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -1106,6 +1106,8 @@ int mmc_attach_sdio(struct mmc_host *host) pm_runtime_enable(&card->dev); } + device_enable_async_suspend(&card->dev); + /* * The number of functions on the card is encoded inside * the ocr. @@ -1126,6 +1128,8 @@ int mmc_attach_sdio(struct mmc_host *host) */ if (host->caps & MMC_CAP_POWER_OFF_CARD) pm_runtime_enable(&card->sdio_func[i]->dev); + + device_enable_async_suspend(&card->sdio_func[i]->dev); } /*