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,URIBL_BLOCKED,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 24281C4360F for ; Mon, 4 Mar 2019 08:40:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DEB4420823 for ; Mon, 4 Mar 2019 08:40:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551688816; bh=0+pdLQihd5WFDWvNgEzgMMOH1Cfw5lo3IDrG0kBtJeE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=HJGzXR3KmNcCb6cch7nWTdf04/ak7Tv63tZwBjWCDUPVWvHevDEe9YcXFXGGhzQ1q otck+gnK4vgGYktJnXoHoF0qfUPq3FnT8CX8LOR2S8D71A/EBW7l6ZWm52KH4UMEV2 HQoa1nORzD+fUbU2JnS1H1/27iu2CsdKo03bjd40= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728169AbfCDIdJ (ORCPT ); Mon, 4 Mar 2019 03:33:09 -0500 Received: from mail.kernel.org ([198.145.29.99]:37470 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728166AbfCDIdJ (ORCPT ); Mon, 4 Mar 2019 03:33:09 -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 4F3AC20823; Mon, 4 Mar 2019 08:33:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551688388; bh=0+pdLQihd5WFDWvNgEzgMMOH1Cfw5lo3IDrG0kBtJeE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=F+A/cMIU+e+jefhqYO7ph68WTth0CQMTXkPW/l+aZms9LRMyZTf7ERg8Cdo+6ktEL QAQiF7BBXULyOYaH0Z7KdtlxJ+8nuhBJx0B+Jx7ouQAWRC5v+2XBbI9tlpaa92Di8R exvRKxmzKtJAmbW0965v486yQOsmdFrYRODo2/yA= 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 4.20 12/88] usb: dwc3: gadget: synchronize_irq dwc irq in suspend Date: Mon, 4 Mar 2019 09:21:55 +0100 Message-Id: <20190304081631.046461963@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190304081630.610632175@linuxfoundation.org> References: <20190304081630.610632175@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: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 4.20-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 5a5b37e0a140f..a7f6255606443 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -3283,6 +3283,8 @@ 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