From mboxrd@z Thu Jan 1 00:00:00 1970 From: yuvaraj.cd@gmail.com (Yuvaraj Kumar C D) Date: Wed, 18 Dec 2013 16:09:30 +0530 Subject: [RFC 1/5] usb: ohci-exynos: enable async suspend/resume Message-ID: <1387363174-25942-1-git-send-email-yuvaraj.cd@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.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 Exynos OHCI 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 Reviewed-by: Julius Werner Signed-off-by: Yuvaraj Kumar C D --- drivers/usb/host/ohci-exynos.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index 68588d8..faad2bdc 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -137,6 +137,8 @@ skip_phy: if (exynos_ohci->otg) exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self); + device_enable_async_suspend(&pdev->dev); + platform_set_drvdata(pdev, hcd); exynos_ohci_phy_enable(pdev); -- 1.7.9.5