From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752250AbbIUEas (ORCPT ); Mon, 21 Sep 2015 00:30:48 -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 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,565,1437462000"; d="scan'208";a="773242316" 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 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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(-) 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); } /* -- 1.7.1