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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 0A7D7FA373A for ; Tue, 1 Oct 2019 08:03:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CD76921855 for ; Tue, 1 Oct 2019 08:03:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1569917015; bh=phwrmQv3WwVi3axl8RFNHHUxwBXKpIYVAs/RyvL7K3M=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=hsV8BYwrnhKRq+eM3f+qbEO056gJIA89kloitZ3KqU7cF0nqUWxv3BrqWewejhCwZ 37HOH6mTGxxN2GRD+qt5uWB8DRZgLY8RJzQwpzXstvtnbAeyjfJ8qpeiktaoMpbVe+ wQ+ecabj3O8oUERvogPNzR7gpctaPdiGRJzdJHTY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727511AbfJAIDf (ORCPT ); Tue, 1 Oct 2019 04:03:35 -0400 Received: from mail-lf1-f67.google.com ([209.85.167.67]:42735 "EHLO mail-lf1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726822AbfJAIDe (ORCPT ); Tue, 1 Oct 2019 04:03:34 -0400 Received: by mail-lf1-f67.google.com with SMTP id c195so9110891lfg.9; Tue, 01 Oct 2019 01:03:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=phwrmQv3WwVi3axl8RFNHHUxwBXKpIYVAs/RyvL7K3M=; b=NoQHVMErN++xOeDNiRyW0wqEm9IxgWERvdCNJKoqS02tbrP6DHc7yyBvCYVBdOV3qI 27poackoPRMH3YiMuTSeti6fSGkm9wLKTfs+7qPoP9rj7oy6+7BvWjaNl5bNyg3YJWvM 1h72GJDZ5z5HL6vC2zuNb+rppkGmTjXSgPpxYSNObxICl8ukARcWl+neY2wTjZpX6+F1 ZKo/F+H4W7TO0Vk8K5cofGIs5D4+rzBtBCrvKzmzQmaaPvPWGrQydPe4pejAMmbUSNe7 HvO0lOlYNn1AEVmzEF7lM2PmIFD4EKKRRqUm7iNNae3KHxUrNnjdcpHBhody7R3sGTA/ abmA== X-Gm-Message-State: APjAAAXjIrvqhpMtqKkJowKKvqGEZZ3ZR4oaoet7dWW3AfV/rXBDOTNp RIFVrIQgwTLqrnDbzQhO2oQ= X-Google-Smtp-Source: APXvYqws4d1Xmv/GKKc/rQTtlW/8USznaOLbdNbNQsOXKMeP9IJWN/zrTnD4rYlPmYv0Zp+X7W1GHg== X-Received: by 2002:a19:7605:: with SMTP id c5mr14912654lff.114.1569917012586; Tue, 01 Oct 2019 01:03:32 -0700 (PDT) Received: from xi.terra (c-51f1e055.07-184-6d6c6d4.bbcust.telenor.se. [85.224.241.81]) by smtp.gmail.com with ESMTPSA id s7sm3848568ljs.16.2019.10.01.01.03.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 01 Oct 2019 01:03:31 -0700 (PDT) Received: from johan by xi.terra with local (Exim 4.92.2) (envelope-from ) id 1iFD8F-0008OW-Eh; Tue, 01 Oct 2019 10:03:39 +0200 Date: Tue, 1 Oct 2019 10:03:39 +0200 From: Johan Hovold To: Sebastian Reichel Cc: Tony Lindgren , Yegor Yefremov , linux-omap@vger.kernel.org, vkoul@kernel.org, Bin Liu , linux-usb , Andrey Skvortsov , giulio.benetti@benettiengineering.com, Sebastian Andrzej Siewior Subject: Re: musb: cppi41: broken high speed FTDI functionality when connected to musb directly Message-ID: <20191001080339.GF13531@localhost> References: <20190927151935.GD5610@atomide.com> <20190927155738.GF5610@atomide.com> <20190930145711.GG5610@atomide.com> <20190930152330.GH5610@atomide.com> <20190930195411.6porqtm7tlokgel3@earth.universe> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="VS++wcV0S1rZb1Fb" Content-Disposition: inline In-Reply-To: <20190930195411.6porqtm7tlokgel3@earth.universe> User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org --VS++wcV0S1rZb1Fb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Sep 30, 2019 at 09:54:11PM +0200, Sebastian Reichel wrote: > Hi, >=20 > On Mon, Sep 30, 2019 at 08:23:30AM -0700, Tony Lindgren wrote: > > Actually playing with the cppi41 timeout might be more suitable here, > > they use the same module clock from what I remember though. So > > maybe increase the cppi41 autosuspend_timeout from 100 ms to 500 ms > > or higher: > >=20 > > # echo 500 > /sys/bus/platform/drivers/cppi41-dma-engine/47400000.dma-c= ontroller/power/autosuspend_delay_ms > >=20 > > If changing the autosuspend_timeout_ms value does not help, then > > try setting control to on there. >=20 > I did not check the details, but from the cover-letter this might be > woth looking into: >=20 > https://lore.kernel.org/lkml/20190930161205.18803-1-johan@kernel.org/ No, that one should be unrelated as it would only prevent later suspends af= ter a driver has been unbound (and rebound). Johan --VS++wcV0S1rZb1Fb Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQHbPq+cpGvN/peuzMLxc3C7H1lCAUCXZMIWAAKCRALxc3C7H1l CGT5AQDIHV+XzTRbXywIry2DPN8FKYG1EWxrlad41pMXQnZaSgD+KXt/l3w0CN3Q 3YmvyZsCjR/8IQk1PFHNAo5SKF0bmQM= =yh8c -----END PGP SIGNATURE----- --VS++wcV0S1rZb1Fb--