From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752919AbcGYSsE (ORCPT ); Mon, 25 Jul 2016 14:48:04 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:39243 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752814AbcGYSsC (ORCPT ); Mon, 25 Jul 2016 14:48:02 -0400 From: robert.foss@collabora.com To: mathias.nyman@intel.com, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, abrestic@chromium.org Subject: [PATCH 2/2] usb: xhci: plat: Enable async suspend/resume Date: Mon, 25 Jul 2016 14:47:54 -0400 Message-Id: <1469472474-27521-2-git-send-email-robert.foss@collabora.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1469472474-27521-1-git-send-email-robert.foss@collabora.com> References: <1469472474-27521-1-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 --- 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 1927950..40d43c8 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -184,6 +184,7 @@ 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