From patchwork Thu Jun 20 09:36:01 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manjunath Goudar X-Patchwork-Id: 2754531 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 0FABA9F96B for ; Thu, 20 Jun 2013 10:40:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 655A7204B2 for ; Thu, 20 Jun 2013 10:40:14 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E2147204B0 for ; Thu, 20 Jun 2013 10:40:12 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UpbLH-0004M5-Uu; Thu, 20 Jun 2013 09:39:49 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UpbKK-0000Zx-3k; Thu, 20 Jun 2013 09:38:48 +0000 Received: from mail-pd0-f171.google.com ([209.85.192.171]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UpbK3-0000Vo-SL for linux-arm-kernel@lists.infradead.org; Thu, 20 Jun 2013 09:38:33 +0000 Received: by mail-pd0-f171.google.com with SMTP id y14so6111488pdi.16 for ; Thu, 20 Jun 2013 02:38:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references :x-gm-message-state; bh=xE2vuWjqPzAnB6+HrO0gIKm5gMaQvS17XdTiPk26e8Y=; b=Gzs52+HnNW1CUfuNpYdf3Hjjp/ZxK5EXeSdybMWIt4jFzoQSvhJuEaNHp+hzYGB+PX VfVHjlbxjBboN5qRQJI2fZyNZ9fClhVHsCbGs2AiaQ8IXInmeNhbHJSaGyPO25dRL0SI Oo5ClMiya025UvtL+Gl0YaIzIQO4qnFUidsbw9ffEWhwpLXGCQGthBr4ne+7BXW+Glle fHive7t3RPi7rlOrVvuQ62L6erLDwSkQdxx64JWNAOuHfDksZJfXD2BZAHQGgPJGBGoc GAlutrOyA+FinxIKITVNJVvlOojCaEbKfDdf0X+tTWjF6TuBwlKFP2WdPzFYLeyIxPRQ FSRA== X-Received: by 10.68.179.99 with SMTP id df3mr6471217pbc.198.1371721086413; Thu, 20 Jun 2013 02:38:06 -0700 (PDT) Received: from localhost.localdomain ([223.239.144.192]) by mx.google.com with ESMTPSA id kq2sm35530pab.19.2013.06.20.02.37.58 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 20 Jun 2013 02:38:05 -0700 (PDT) From: Manjunath Goudar To: linux-usb@vger.kernel.org Subject: [PATCH V4 05/11] USB: OHCI: Properly handle ohci-ep93xx suspend Date: Thu, 20 Jun 2013 15:06:01 +0530 Message-Id: <1371720968-7533-6-git-send-email-manjunath.goudar@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1371720968-7533-1-git-send-email-manjunath.goudar@linaro.org> References: <1371050918-29472-1-git-send-email-manjunath.goudar@linaro.org> <1371720968-7533-1-git-send-email-manjunath.goudar@linaro.org> X-Gm-Message-State: ALoCoQmbwLE7Vng8qpxFIt9O9gupTU4tzLep0+7ywwenjCou46kp8AmexiLNOBmR5+Aht8hRQq+8 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130620_053832_062448_FBCA8FA8 X-CRM114-Status: GOOD ( 12.27 ) X-Spam-Score: -1.9 (-) Cc: linaro-kernel@lists.linaro.org, Arnd Bergmann , patches@linaro.org, Greg KH , manjunath.goudar@linaro.org, stern@rowland.harvard.edu, arnd@linaro.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-5.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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. Signed-off-by: Manjunath Goudar Cc: Arnd Bergmann Cc: Alan Stern Cc: Greg KH Cc: linux-usb@vger.kernel.org V2: -Incase ohci_suspend() fails, return right away without executing further. V3: -Aligned variable "do_wakeup" and "ret". V4: -The do_wakeup and ret variable alignment is removed. --- drivers/usb/host/ohci-ep93xx.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c index 8704e9f..f0aaa48 100644 --- a/drivers/usb/host/ohci-ep93xx.c +++ b/drivers/usb/host/ohci-ep93xx.c @@ -174,13 +174,20 @@ 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; if (time_before(jiffies, ohci->next_statechange)) msleep(5); ohci->next_statechange = jiffies; + ret = ohci_suspend(hcd, do_wakeup); + if (ret) + return ret; + ep93xx_stop_hc(&pdev->dev); - return 0; + + return ret; } static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev)