From mboxrd@z Thu Jan 1 00:00:00 1970 From: manjunath.goudar@linaro.org (Manjunath Goudar) Date: Thu, 13 Jun 2013 14:40:55 +0530 Subject: [PATCH 04/10] USB: OHCI: Properly handle ohci-ep93xx suspend In-Reply-To: <1371114661-2207-1-git-send-email-manjunath.goudar@linaro.org> References: <1371050918-29472-1-git-send-email-manjunath.goudar@linaro.org> <1371114661-2207-1-git-send-email-manjunath.goudar@linaro.org> Message-ID: <1371114661-2207-5-git-send-email-manjunath.goudar@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Suspend scenario in case of ohci-ep93xx glue was not properly handled as it was not suspending generic part of ohci controller.Calling explicitly the ohci_suspend() routine in ohci_hcd_ep93xx_drv_suspend() will ensure proper handling of suspend scenario. V2: -Incase ohci_suspend() fails, return right away without executing further. Signed-off-by: Manjunath Goudar Cc: Arnd Bergmann Cc: Alan Stern Cc: Greg KH Cc: linux-usb at vger.kernel.org --- drivers/usb/host/ohci-ep93xx.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c index 8704e9f..b36b74e 100644 --- a/drivers/usb/host/ohci-ep93xx.c +++ b/drivers/usb/host/ohci-ep93xx.c @@ -174,13 +174,23 @@ static int ohci_hcd_ep93xx_drv_suspend(struct platform_device *pdev, pm_message_ { struct usb_hcd *hcd = platform_get_drvdata(pdev); struct ohci_hcd *ohci = hcd_to_ohci(hcd); + bool do_wakeup = device_may_wakeup(&pdev->dev); + int ret; + + ret = ohci_suspend(hcd, do_wakeup); + if (ret == 0 && do_wakeup && HCD_WAKEUP_PENDING(hcd)) { + ohci_resume(hcd, false); + ret = -EBUSY; + } + if (ret) + return ret; if (time_before(jiffies, ohci->next_statechange)) msleep(5); ohci->next_statechange = jiffies; ep93xx_stop_hc(&pdev->dev); - return 0; + return ret; } static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev) -- 1.7.9.5