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,URIBL_BLOCKED,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 96FDCC43381 for ; Fri, 15 Feb 2019 02:28:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5D4112073D for ; Fri, 15 Feb 2019 02:28:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550197699; bh=L4CZlLuEJ/CmW/pV70a9n89HvYR8WY2j6cqFmbA6abI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=tW5DK9lRaiGaZmKnbuGKI2lDSjxpZr3hUKrBast7qmqWf+F2z7mh/2qTbyBll6xVi oy1AbP2RYOCJoFuG7jMHl2VqvNjzHQhgeo9CjwgyxXWkW5VTCiunOzYI6ebUU6CkT2 nEfKWQ0IMc0TQqV6Z8RQtpQ9ZJSf4lkfCJ+sjfD0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730367AbfBOC2R (ORCPT ); Thu, 14 Feb 2019 21:28:17 -0500 Received: from mail.kernel.org ([198.145.29.99]:53376 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391409AbfBOCN1 (ORCPT ); Thu, 14 Feb 2019 21:13:27 -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 28E3221934; Fri, 15 Feb 2019 02:13:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550196807; bh=L4CZlLuEJ/CmW/pV70a9n89HvYR8WY2j6cqFmbA6abI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oxmhLZGmCfh1/l/VzCS+c/M5OcPPBMuSPxt1zVZnZxXCeDwUp4hWx3ovnpqoogBPR Yj6daV3fJ0iU3bc1AHWNKbPSXVYWMwfy8YXFbRaErfpPoBcHH1+L4seP3OIuZCBudU pXeLPI256mJW6UcOf1y3vAJOLA2wlefQuNNA7fLE= 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 4.14 07/40] usb: dwc3: gadget: synchronize_irq dwc irq in suspend Date: Thu, 14 Feb 2019 21:12:40 -0500 Message-Id: <20190215021313.178476-7-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190215021313.178476-1-sashal@kernel.org> References: <20190215021313.178476-1-sashal@kernel.org> MIME-Version: 1.0 X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 727bf3c9f53b..e50f7ca9ca6e 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -3323,6 +3323,8 @@ 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