From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753488AbcG2TzS (ORCPT ); Fri, 29 Jul 2016 15:55:18 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:50897 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752953AbcG2Tyx (ORCPT ); Fri, 29 Jul 2016 15:54:53 -0400 From: robert.foss@collabora.com To: mathias.nyman@intel.com, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, felipe.balbi@linux.intel.com Cc: Andrew Bresticker , Robert Foss Subject: [PACTH v3 2/2] usb: xhci: plat: Enable async suspend/resume Date: Fri, 29 Jul 2016 15:54:43 -0400 Message-Id: <1469822083-23641-3-git-send-email-robert.foss@collabora.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1469822083-23641-1-git-send-email-robert.foss@collabora.com> References: <1469822083-23641-1-git-send-email-robert.foss@collabora.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrew Bresticker USB host controllers can take a significant amount of time to suspend and resume, adding several hundred miliseconds to the kernel resume time. Since the XHCI controller has no outside dependencies (other than clocks, which are suspended late/resumed early), allow it to suspend and resume asynchronously. Signed-off-by: Andrew Bresticker Tested-by: Andrew Bresticker Tested-by: Robert Foss Signed-off-by: Robert Foss --- drivers/usb/host/xhci-plat.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 4f39d4e..89aef0e 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -248,6 +248,7 @@ static int xhci_plat_probe(struct platform_device *pdev) pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); + device_enable_async_suspend(&pdev->dev); return 0; -- 2.7.4