From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0DBE2C43381 for ; Mon, 4 Mar 2019 08:45:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6A0B020823 for ; Mon, 4 Mar 2019 08:45:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551689104; bh=LWKhgn/jmFexxsViFkGqgNI7wMmkB2wVmqTuCvWgDLQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=iPeAJamoUoGduks3hCEQAh21yu05IK2/Hs1Y/CEqVuh0t3ylUnEjq6Dx2LoTTdexb MY/Uw4RAXygYfNrLxJ8A0lELu+WEgPO0n9Ua+4edazVuOHZHHOhlOSdU8aWpKz4q9B HRX00BikWaTrxU+CYF3fVr6YiEJWQ7HUslUH2KM0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727390AbfCDI2P (ORCPT ); Mon, 4 Mar 2019 03:28:15 -0500 Received: from mail.kernel.org ([198.145.29.99]:52998 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727014AbfCDI2J (ORCPT ); Mon, 4 Mar 2019 03:28:09 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8625520836; Mon, 4 Mar 2019 08:28:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551688089; bh=LWKhgn/jmFexxsViFkGqgNI7wMmkB2wVmqTuCvWgDLQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EGIzFBaLKe3sJHOgndddf7P8Xvb9Y+Y3kdGoSlpkKrX03NC3bzh4yiUeY7rtmghdt XlM1UN9nD6w2OUyc9l1LUyKKjW1O4jLbYWiuOGORTMn/PVme1hFr/oL1uJnYNgnyh2 DSKDs5STshZSliiNamo9BdwSdt3QsJCGilXv8jGA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bo He , Yu Wang , Felipe Balbi , Sasha Levin Subject: [PATCH 4.19 14/78] usb: dwc3: gadget: synchronize_irq dwc irq in suspend Date: Mon, 4 Mar 2019 09:21:57 +0100 Message-Id: <20190304081626.142498487@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190304081625.508788074@linuxfoundation.org> References: <20190304081625.508788074@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit 01c10880d24291a96a4ab0da773e3c5ce4d12da8 ] We see dwc3 endpoint stopped by unwanted irq during suspend resume test, which is caused dwc3 ep can't be started with error "No Resource". Here, add synchronize_irq before suspend to sync the pending IRQ handlers complete. Signed-off-by: Bo He Signed-off-by: Yu Wang Signed-off-by: Felipe Balbi Signed-off-by: Sasha Levin --- drivers/usb/dwc3/gadget.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 0db90f6f4aa81..f6cd7feeb1c4f 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -3274,6 +3274,8 @@ int dwc3_gadget_suspend(struct dwc3 *dwc) dwc3_disconnect_gadget(dwc); __dwc3_gadget_stop(dwc); + synchronize_irq(dwc->irq_gadget); + return 0; } -- 2.19.1