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=-5.5 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 D2600C433E0 for ; Fri, 17 Jul 2020 08:25:04 +0000 (UTC) Received: from web01.groups.io (web01.groups.io [66.175.222.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 71BBD2071A for ; Fri, 17 Jul 2020 08:25:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=lists.cip-project.org header.i=@lists.cip-project.org header.b="MXThX7eG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 71BBD2071A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ucw.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=bounce+64572+4935+4520388+8129055@lists.cip-project.org X-Received: by 127.0.0.2 with SMTP id 5hEtYY4521723xtz1Qhw8BpK; Fri, 17 Jul 2020 01:25:04 -0700 X-Received: from jabberwock.ucw.cz (jabberwock.ucw.cz [46.255.230.98]) by mx.groups.io with SMTP id smtpd.web11.7260.1594974301839472848 for ; Fri, 17 Jul 2020 01:25:02 -0700 X-Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id D38C31C0BEB; Fri, 17 Jul 2020 10:24:59 +0200 (CEST) Date: Fri, 17 Jul 2020 10:24:58 +0200 From: "Pavel Machek" To: cip-dev@lists.cip-project.org Cc: Nobuhiro Iwamatsu , Pavel Machek , Chris Paterson , Biju Das , Prabhakar Mahadev Lad Subject: Re: [cip-dev] [PATCH 4.4.y-cip] serial: sh-sci: Make sure status register SCxSR is read in correct sequence Message-ID: <20200717082458.GA10436@amd> References: <1594905847-54471-1-git-send-email-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 In-Reply-To: <1594905847-54471-1-git-send-email-biju.das.jz@bp.renesas.com> User-Agent: Mutt/1.5.23 (2014-03-12) Precedence: Bulk List-Unsubscribe: Sender: cip-dev@lists.cip-project.org List-Id: Mailing-List: list cip-dev@lists.cip-project.org; contact cip-dev+owner@lists.cip-project.org Reply-To: cip-dev@lists.cip-project.org X-Gm-Message-State: vyimzEvpDA3JwmH8Bm950JzKx4520388AA= Content-Type: multipart/mixed; boundary="mOnJK3ZvpaVJg0Ce52wA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lists.cip-project.org; q=dns/txt; s=20140610; t=1594974304; bh=wEQNWzxHO0tXKWgIdHhjKTe+2L/EwrNsbLTy9KIlPHA=; h=Cc:Content-Type:Date:From:Reply-To:Subject:To; b=MXThX7eGgTZBv/p8spWse9mDsCga7HPWzx9ugp6VGfCsmBOgHQWlf0KPrKNLNkrYVYt LtpE0MQe+HDtR6cCwrfXTi3Tsy0Hpy8MNP/XY58fP77tk14qrjXyzY+UIFWxklEXG+9gh tYiAy15zCxYsEJkFV1/PLQGDJZUOvbVG43A= --mOnJK3ZvpaVJg0Ce52wA Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="J/dobhs11T7y2rNN" Content-Disposition: inline --J/dobhs11T7y2rNN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > From: Kazuhiro Fujita >=20 > commit 3dc4db3662366306e54ddcbda4804acb1258e4ba upstream. >=20 > For SCIF and HSCIF interfaces the SCxSR register holds the status of > data that is to be read next from SCxRDR register, But where as for > SCIFA and SCIFB interfaces SCxSR register holds status of data that is > previously read from SCxRDR register. >=20 > This patch makes sure the status register is read depending on the port > types so that errors are caught accordingly. Looks good to me. > Cc: I notice this applies cleanly to v4.4-stable. Was this submitted to 4.4 / do you need some help there? Does this have user-visible impact? Best regards, Pavel --=20 DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany --J/dobhs11T7y2rNN Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl8RYFoACgkQMOfwapXb+vLTdACgqT96n0RGxiMlkLPDfJcfCZfC 4YwAni8jdattTLZr6rV7fnKvBuVgFUCH =auWa -----END PGP SIGNATURE----- --J/dobhs11T7y2rNN-- --mOnJK3ZvpaVJg0Ce52wA Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Links: You receive all messages sent to this group. View/Reply Online (#4935): https://lists.cip-project.org/g/cip-dev/message= /4935 Mute This Topic: https://lists.cip-project.org/mt/75541395/4520388 Group Owner: cip-dev+owner@lists.cip-project.org Unsubscribe: https://lists.cip-project.org/g/cip-dev/leave/8129055/7279483= 98/xyzzy [cip-dev@archiver.kernel.org] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- --mOnJK3ZvpaVJg0Ce52wA--