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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 A3AA4C43381 for ; Fri, 15 Feb 2019 02:42:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 717572192B for ; Fri, 15 Feb 2019 02:42:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550198543; bh=90by3f4RJ4Le5sQpCAINm3MdVIJ5a6qF+s4R04m7QaI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=cH4QA0nQJ1tzAOaY1o4sKiATRaXtYn1EyMM8kyt2+HM+T6LHolga6X1l9dF+4b+CP 43e2fnMxAm94Nagqipo2Ktl5sX9HJil3Mm2k6C5x2QxkzK7zswa1Rd/oT+fCzfbhi9 cvTJNTtRt3jGnIb/vBTfJdn0a8dPcweTtJdReD9w= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731670AbfBOCJR (ORCPT ); Thu, 14 Feb 2019 21:09:17 -0500 Received: from mail.kernel.org ([198.145.29.99]:49442 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731535AbfBOCJP (ORCPT ); Thu, 14 Feb 2019 21:09:15 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AA8BC222C9; Fri, 15 Feb 2019 02:09:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550196554; bh=90by3f4RJ4Le5sQpCAINm3MdVIJ5a6qF+s4R04m7QaI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=w1KlrqjHYrJIIBCNaVZQYUB4FTdKPmpiTR4OS/V+eXdBxwo5dKJFdOYfDHYatAYx9 /LTzJzFJS6yjf18bUhC5mkHQmUncRQiy9vrkFnsaBEVRpI03fJw46Ob7GZkiylSo0k y+MXFQVVKt5haKTQyFHg2zPeI1bxgZFTyDOyCwoU= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Bo He , Yu Wang , Felipe Balbi , Sasha Levin , linux-usb@vger.kernel.org Subject: [PATCH AUTOSEL 4.20 12/77] usb: dwc3: gadget: synchronize_irq dwc irq in suspend Date: Thu, 14 Feb 2019 21:07:50 -0500 Message-Id: <20190215020855.176727-12-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190215020855.176727-1-sashal@kernel.org> References: <20190215020855.176727-1-sashal@kernel.org> MIME-Version: 1.0 X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Bo He [ 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 2a4ea9a1b1e3..f51527c8925b 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -3279,6 +3279,8 @@ 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