Received: by 2002:a05:6a10:2785:0:0:0:0 with SMTP id ia5csp374286pxb; Wed, 13 Jan 2021 06:02:10 -0800 (PST) X-Google-Smtp-Source: ABdhPJzsC4nBw+YUCL002Lhm2NMGOJOiKfVo6Ha8f+SUBllGAvwo8eKbgykdww+Ph9sYVxKlieO3 X-Received: by 2002:a17:906:4bc5:: with SMTP id x5mr1669017ejv.55.1610546530108; Wed, 13 Jan 2021 06:02:10 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1610546530; cv=none; d=google.com; s=arc-20160816; b=rDcJUzkjGaRPOSPmTDsGL2hCVVBFZHFpVZQszkHxL5hv9omqDRCpo8+J9M7+NGJW1B tqsAzl522rK4fpTUuQ7KwaUZ4aB9CYjneE2o5k+bDqA9oAfU+/a2q8fiZS375trKUz/V htbkFs7gc7cbPlHiqrF4cPEaJj+89i9mkkkgoLopXEj8+gVDff41AY4hjxY+KoikXYQB 9pP8/oytFdyxx1tO8/kMZbdFDVGktfA8n5zUXhLbO4I0VphAGmA63Y8tfXHg52863v6S tLDEBxjtrz5t7pwS/DHt7r7wci9nuL8jDWciMYoCXJ7hL2vsp9MSMahot00KvVTmUuHa E1nQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=DRfc/JtBe5QUg//Kn5gVq/cTumEI5kx0fGv7KbdbN+U=; b=rKAMv0ad3cE2zhpjU1scoMajxjyTbhy6w/uNodBUjbvXeEoxoFEa3bXsApgQLFiZ90 Q82GIdh86s/LF/OydVHc2ieFQ5LI3IfDPGKJ5wB0Ioa6ixUlwZrZgGfJFqGqLJbWtVoY 49CLtrdfZuxKreSwDAEnN7RiLAdUe+RzopFc5GFRx20EbCsIRmEEDhvVbl5x4nN25oci aJNffY5qrbwQo6NCnfZAF0ZRRLXnO4nwQrbtE2JFtr/VbqHQAlOyvWufNjDPW9OBL6vK ZUjnZAi5O3A6rO1K3D+mCvuIRZnRBySHgkREQJc3dlHwdxvxDeA7/2/EPerBPlKtk6vE 3qiw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=Dyu9mEbY; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 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: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id b32si1112435edf.406.2021.01.13.06.01.44; Wed, 13 Jan 2021 06:02:10 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=Dyu9mEbY; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 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 S1726594AbhAMOAG (ORCPT + 99 others); Wed, 13 Jan 2021 09:00:06 -0500 Received: from mail.kernel.org ([198.145.29.99]:42208 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725801AbhAMOAG (ORCPT ); Wed, 13 Jan 2021 09:00:06 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 25E402339D; Wed, 13 Jan 2021 13:59:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1610546365; bh=CTYl4sS6a0mRlAEUPoEll2y1cYD+IgIiBe33/Vyl5Ws=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Dyu9mEbYkqVUGH/WaJUSTYK6+wbiZcu2Q0nN3u8M9IU8im1zoqU8c00BUlL6wAozL UAwB8A3YLRlgU8NFrJ24NVVkxQZVi/A6g8rTjHDz+RpRQkN+kjQMdsPHnoZNlhUiyD BsCSYEekp6bGU0gmowTPLOmlXFUegkYGewOjvRpIEFScpvOpYw9Y/imZB7Skm6p45u TUlZyG176ZTRNGi5rPaa0+C22ov6o8nAPBG4W2jarS5bdFN1NPT2DmGx3gL9Dhxe40 nbqEPATSreZ9uNTq5U+t/xUv61IDPnBmMr7QBHdjXKlf7Wgs8rpX5yfXdY6Fj0WJOX Z9zTDhka8Z3KA== Date: Wed, 13 Jan 2021 19:29:19 +0530 From: Vinod Koul To: Mathias Kresin Cc: Kishon Vijay Abraham I , Philipp Zabel , linux-kernel@vger.kernel.org, Martin Blumenstingl , Hauke Mehrtens , stable@vger.kernel.org Subject: Re: [PATCH] phy: lantiq: rcu-usb2: wait after clock enable Message-ID: <20210113135919.GO2771@vkoul-mobl> References: <20210107224901.2102479-1-dev@kresin.me> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210107224901.2102479-1-dev@kresin.me> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07-01-21, 23:49, Mathias Kresin wrote: > Commit 65dc2e725286 ("usb: dwc2: Update Core Reset programming flow.") > revealed that the phy isn't ready immediately after enabling it's > clocks. The dwc2_check_core_version() fails and the dwc2 usb driver > errors out. > > Add a short delay to let the phy get up and running. There isn't any > documentation how much time is required, the value was chosen based on > tests. Applied, thanks -- ~Vinod