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=-14.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 F076DC4361B for ; Thu, 17 Dec 2020 13:26:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B81AA2395A for ; Thu, 17 Dec 2020 13:26:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726291AbgLQN0c (ORCPT ); Thu, 17 Dec 2020 08:26:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54622 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725871AbgLQN0b (ORCPT ); Thu, 17 Dec 2020 08:26:31 -0500 Received: from mail-wm1-x32d.google.com (mail-wm1-x32d.google.com [IPv6:2a00:1450:4864:20::32d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 716D8C061794; Thu, 17 Dec 2020 05:25:51 -0800 (PST) Received: by mail-wm1-x32d.google.com with SMTP id a6so5548855wmc.2; Thu, 17 Dec 2020 05:25:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=VxmIaKeX0QRH/GLpWOoJZuJpj+c6sglXfsSrXyWfRgk=; b=k7NgoQJFsf5DaAePoDcZ8epqBz4trcc4ULLDK1ja4IVQM7rtg5AL5eQ0xMFYPrgv6w mwwAzCSlDOy9fc61sQg/ODC3qAh2ijDsvUdAZmOghYrrjEAJwzwvQzGhwrbhRmPjrK2R +bt2b0qv2COuPNffSpBiqKbMcuqDaYdAT0P0vKJtPa3z7MxMXqBzcFi9se7/rurDrDfv UwjcvfVo89OjVyIzWITa7u3T66jxI1ozBRcgg0phosCv6bCTxTHG6motjzLmsFJGZ4n/ MeXn0+fwLr1q+n+kUAyb50R3b/6GtRDIVg2A1KW39W7ZngqeYnoLHhGbqiUsuqleTYB0 V6Sw== 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=VxmIaKeX0QRH/GLpWOoJZuJpj+c6sglXfsSrXyWfRgk=; b=ScJQG1EN8L5HLlhyhn3Lo59hqywZ6F2pP6j/JQVghJ7WENo/rAlsrtMmUvP2I03qqK 5apw/qN2CkshDcIwxFW+uL84lFcFxGGgLgoNOVObVHWCcYqpezc8Xl00IJ0VxZNvV5DA Ubr6F90QuoJ+o3TzjQJxhuSlZ/rxwnj88Mm/m21C2uAx+aj3LMoDj6qWhEZbzZ9sXxwX bT14zHdNaudJ6vIeOT+WjOnWwT6USDGMCdnfrmIKXtOb0MUYVOaDSamaAIai1Irl0VqW 1OUh+890yGx8IBdwlKHrKsZqwjvUx0n3RhetMHu/Aq6vKrQyP6TXH46QG6V0aTQX76mu VF0Q== X-Gm-Message-State: AOAM533h62XUlUyv86mNDJ2UlTHRF1WsEvoJa+ATYnkm+fK8v8sti8KK yQ9T573etYYVVv+bqZvsrhg= X-Google-Smtp-Source: ABdhPJyWrrk7NR5yOR8w64DJkuYTSSpbbTwDm20val5U/kVr37DE9gvNWOoZnSAYg1oZ+2sv3vczWQ== X-Received: by 2002:a1c:1bcd:: with SMTP id b196mr8513752wmb.70.1608211550206; Thu, 17 Dec 2020 05:25:50 -0800 (PST) Received: from localhost ([62.96.65.119]) by smtp.gmail.com with ESMTPSA id f7sm14358332wmc.1.2020.12.17.05.25.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Dec 2020 05:25:48 -0800 (PST) Date: Thu, 17 Dec 2020 14:25:47 +0100 From: Thierry Reding To: Dmitry Osipenko Cc: Jonathan Hunter , Peter Chen , Greg Kroah-Hartman , Alan Stern , Felipe Balbi , Matt Merhar , Nicolas Chauvet , Peter Geis , Ion Agorria , linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 1/8] usb: phy: tegra: Add delay after power up Message-ID: References: <20201217094007.19336-1-digetx@gmail.com> <20201217094007.19336-2-digetx@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="BZZ09Xl/0fjfNMW1" Content-Disposition: inline In-Reply-To: <20201217094007.19336-2-digetx@gmail.com> User-Agent: Mutt/2.0.3 (a51f058f) (2020-12-04) Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org --BZZ09Xl/0fjfNMW1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Dec 17, 2020 at 12:40:00PM +0300, Dmitry Osipenko wrote: > The PHY hardware needs the delay of 2ms after power up, otherwise initial > interrupt may be lost if USB controller is accessed before PHY is settled > down. Previously this issue was masked by implicit delays, but now it pops > up after squashing the older ehci-tegra driver into the ChipIdea driver. >=20 > Tested-by: Matt Merhar > Tested-by: Nicolas Chauvet > Tested-by: Peter Geis > Tested-by: Ion Agorria > Signed-off-by: Dmitry Osipenko > --- > drivers/usb/phy/phy-tegra-usb.c | 3 +++ > 1 file changed, 3 insertions(+) Acked-by: Thierry Reding --BZZ09Xl/0fjfNMW1 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAl/bXFgACgkQ3SOs138+ s6FdtA//YIZ435A4qXh1cy4i9l/fCvnBXkdMcU8Fy0iK1dk1geWwuNsvwks2nLh9 uG6iH4kzVXvEK781Lv51oOoPrDP4glHdl0JHwlvLfRQaoPvFyloA03zV37nhLaIn g1IqNKrG7iY6Jf0pt2MwTU6Pj6eR2sYUI6pi5c52/yxlurU3Lo6+E/JcN3kuwZUl YPBlJUUzeVIDL9xXjIFDIUj4pUaQjcs3j1RT6kWJdzXp75Wh5LGp3zASuCpTPrqf 445kjXkUb8ub/yb2W4qGKDKfKf5mW2hMYyUX67sUYih5oLIFnt05r+Bi4sd0NZEQ tiSx9L7BL8fn8cGrf4ap9py7x4SZyUluw/oEFEUOkm3AHVXN4yiqXTni9Lpi1ww7 1zpEKLn/UUjs2vQ72abhrNtavtrFRpvj+YYXoxG3ZtZ6lKtSMiSajH3leu4FxoQU 8+MG2fxw0uUNAdHhtNvbUYblOt+MSaMl737fJkf5ajSB1VnNPe5DYEeDzDkIOLI3 xFggYt6gBVEE2J67105aqZy8T1g3Fm5o2AYy8Vz/n0FHE/hxQiSdKrR/JkyZzus6 43v7nlTHVhxmJGQH6/uMebg3H2sbnEHS1d2bl6kgEHSo+/qaSNwopgXHF+OaRnYJ 9zZzg2RehVfhKfnZOx1py1a7agDL6xvqOOzLvJGYjd5aeXjfQWU= =9QML -----END PGP SIGNATURE----- --BZZ09Xl/0fjfNMW1--