Received: by 2002:a05:6358:9144:b0:117:f937:c515 with SMTP id r4csp1036916rwr;
        Wed, 26 Apr 2023 09:19:50 -0700 (PDT)
X-Google-Smtp-Source: AKy350aSL6zOmw6tLlRbqt2nlL5vnvOZvX01KtXognczLknsBEbk06wWODXHq7cBQLiXtezHPYbk
X-Received: by 2002:a05:6a00:1914:b0:63b:8425:bf5d with SMTP id y20-20020a056a00191400b0063b8425bf5dmr28804290pfi.24.1682525990012;
        Wed, 26 Apr 2023 09:19:50 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1682525989; cv=none;
        d=google.com; s=arc-20160816;
        b=zdDDr8YODA5gRAfRMrSl76KXhRk8mRWBl23cGesTb0z0hpmZo/Mo7FFeXbJK2oUGTb
         HEyKUjsKESkN6IWxwwefXq82KN+OmwktjDM3a4VEaHIe8umTr/UodrjnKEOrXHpDTzVN
         yUayti1qzE+JuJVjcIYL6svuDtkt5QRXvb7XrmiaAmGm5oeZMl9mUkcmRV4jjzq9lsY4
         prT1mxkTBtSclr8wXmB2JTJBjZ/pxkP5LkAGg1LX35Rq0wshMcXptkisNb4abBfHKQ7j
         mEalOKepzmIRh2+RIF65qj2Vo6L0FGmdzUmTM7YuVp/nlIK5A/4i5wbQaakNn298aHPm
         +Vxw==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:content-transfer-encoding:subject:from:cc:to
         :content-language:user-agent:mime-version:date:message-id
         :dkim-signature;
        bh=e7UyX3cmEAIfvS5+SVdtDz/EJvJqW2GCk2KwlQ4aDB8=;
        b=TpCoxuDcplmUvWrD0ND5I/U9P+U/ohNo9Az1/JCDFhb9yzfckMUfxNfKJ6v2wTch3+
         wDRSziiz2G+BRfXocw0GaENbVz2eV0BF03EgfYGUzmKJbEMooQ1A0572mq1dT0wYG/mS
         CFJEM9psV+0OP1A6mHxNcJ7bPnlw/KTmC0Uq+EIsz5KKxbMwRJ1ApZj7W76v+q/t+KFZ
         EGsXQdKD9Ewgh0W/3kXSdlQ9l+6FsHi0vvY4hfzweBRWIgCRDZwwU5mJgSOnfu/ysyqW
         AdMCg4nQ7cL7x1eM9KisfgseE2PQUbmTNf7G4GTU30djC4RN8PTMxUPBlCRKPnxtNdFw
         sscQ==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=pass header.i=@kernel.org header.s=k20201202 header.b=pFBEfcpR;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org;
       dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20])
        by mx.google.com with ESMTP id f67-20020a625146000000b00640f45ad7ffsi3163390pfb.328.2023.04.26.09.19.35;
        Wed, 26 Apr 2023 09:19:49 -0700 (PDT)
Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Authentication-Results: mx.google.com;
       dkim=pass header.i=@kernel.org header.s=k20201202 header.b=pFBEfcpR;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org;
       dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S239654AbjDZQR3 (ORCPT <rfc822;auribe84@gmail.com> + 99 others);
        Wed, 26 Apr 2023 12:17:29 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36608 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S239512AbjDZQR2 (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Wed, 26 Apr 2023 12:17:28 -0400
Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B6F42D55;
        Wed, 26 Apr 2023 09:17:27 -0700 (PDT)
Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140])
        (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
        (No client certificate requested)
        by dfw.source.kernel.org (Postfix) with ESMTPS id D7BE063732;
        Wed, 26 Apr 2023 16:17:26 +0000 (UTC)
Received: by smtp.kernel.org (Postfix) with ESMTPSA id 47EB4C433EF;
        Wed, 26 Apr 2023 16:17:25 +0000 (UTC)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;
        s=k20201202; t=1682525846;
        bh=qsJu9qcEXfSq2zuM/m0CZcc0AWAn2Zc87aX2e31XwA4=;
        h=Date:To:Cc:From:Subject:From;
        b=pFBEfcpRaBskWVlrshcj7bk3yt2YpDFyO7IOBZSXTka2izBuUYjAV7NUz8jprMrLN
         aWrTfhcuYq5xcPM5RBHg2UzCeaytu85GfoBqAOKg4pIW3wPi9No3UduysKJKW5LTeI
         mCktaOTj1o1rX4L8EtLPhemcRG7KfD785WAP0IoWkwWETxZJsKJZpbZihsbDhJSHvv
         OJaxYQSl6hH2ikDJYRwF4G3brUVH13fKyUPylAr2SSAYItzJGbCo7xfxhfq9caSsR3
         dt1U6jwgeG1tp5gMQMxRVv/QqYguUlWSSjF2zPkYxXysKEv8tPmSmPtfjNbPf0fveF
         OztbLgBFNxlGQ==
Message-ID: <24c9f271-ed74-fffa-a49f-6e83da857593@kernel.org>
Date:   Wed, 26 Apr 2023 19:17:22 +0300
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.10.0
Content-Language: en-US
To:     Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Cc:     "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
        "linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
From:   Roger Quadros <rogerq@kernel.org>
Subject: dwc3 gadget: controller stop times out on system sleep
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
X-Spam-Status: No, score=-4.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
        DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,
        SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham
        autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Hi Thinh,

On Linux kernel v6.3
Test procedure: 

- modprobe g_zero
- Connect to PC host
- systemctl suspend

A large delay of 3 seconds is observed. The delay comes from dwc3_gadget_suspend()->dwc3_gadget_run_stop() waiting for DWC3_DSTS_DEVCTRLHLT to be set.
It returns -ETIMEDOUT.

Are we missing something to do a clean stop during suspend?

FYI. Unloading g_zero does not show this delay on stop.

cheers,
-roger