From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932816AbcHIQjD (ORCPT ); Tue, 9 Aug 2016 12:39:03 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:41254 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932724AbcHIQjA (ORCPT ); Tue, 9 Aug 2016 12:39:00 -0400 From: robert.foss@collabora.com To: mathias.nyman@intel.com, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Julius Werner , Andrew Bresticker , Felipe Balbi Cc: Robert Foss Subject: [PACTH v5 2/2] usb: xhci: plat: Enable async suspend/resume Date: Tue, 9 Aug 2016 12:38:51 -0400 Message-Id: <1470760731-26598-3-git-send-email-robert.foss@collabora.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1470760731-26598-1-git-send-email-robert.foss@collabora.com> References: <1470760731-26598-1-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 7d3d111..6703679 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