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=-8.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 72FB9C433DF for ; Wed, 22 Jul 2020 11:10:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 46AAA20714 for ; Wed, 22 Jul 2020 11:10:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="Oiq4W2YK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726503AbgGVLK3 (ORCPT ); Wed, 22 Jul 2020 07:10:29 -0400 Received: from www.zeus03.de ([194.117.254.33]:43852 "EHLO mail.zeus03.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726462AbgGVLK2 (ORCPT ); Wed, 22 Jul 2020 07:10:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=sang-engineering.com; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=k1; bh=VV8jO+VNCBBi+L6IQSZtM6f1FOVa N+zw7Qwl6ob4vaE=; b=Oiq4W2YKFgeq4iRdqdVGwOlBa6vLlak4gKvLhOFCZbxt 0kAYrQBaEMrxRhlS7WeL6/0Y/FVW/14nG8JwmIvQsbRlbVWqolhVrYbmI/+OKpiV d7Leb/jays3ScSQ2WsdaP/rliwn3b3xXU+k3X10gSzrQbzuYOcCPuOPwyL8gLV0= Received: (qmail 3017535 invoked from network); 22 Jul 2020 13:10:26 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 22 Jul 2020 13:10:26 +0200 X-UD-Smtp-Session: l3s3148p1@WJd4yQWrXtggAwDPXwY8AL9PxqFiRnVq Date: Wed, 22 Jul 2020 13:10:26 +0200 From: Wolfram Sang To: linux-i2c@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda Subject: Re: [PATCH] i2c: rcar: always clear ICSAR to avoid side effects Message-ID: <20200722111026.GR1030@ninjato> References: <20200704133829.7015-1-wsa+renesas@sang-engineering.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="/Isdj7O9hWi8F9Bn" Content-Disposition: inline In-Reply-To: <20200704133829.7015-1-wsa+renesas@sang-engineering.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org --/Isdj7O9hWi8F9Bn Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Jul 04, 2020 at 03:38:29PM +0200, Wolfram Sang wrote: > On R-Car Gen2, we get a timeout when reading from the address set in > ICSAR, even though the slave interface is disabled. Clearing it fixes > this situation. Note that Gen3 is not affected. >=20 > To reproduce: bind and undbind an I2C slave on some bus, run > 'i2cdetect' on that bus. >=20 > Signed-off-by: Wolfram Sang Applied to for-current, thanks! --/Isdj7O9hWi8F9Bn Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAl8YHqIACgkQFA3kzBSg KbZXoQ//XxBed0oLBECNJmSuQ1pCqP0kL2g+Wqcn0OQzdiridBPAJacHxuy9wOSy fwMgWhw8MF5HQLfqzdxgRKeEel3Hsxm+tEDXCaSr7i23226n9M3sguujJH6mMsxg UfJp6x5mzOOTygFYe6c68cfUYfDFt+l3futa6KJw5vVPr6C5gpupQcj79/JhjhYZ ytQSFqqp+VbWp1DGd1IVFK4plXfzQ2qCSfdvffiILGiHkayiJASYzMHqq02+8N7n 9jF4137jvhNS1Xm6ayJgxg8Oox+V7BmDWarMtuGH9K8O4vL8lI1tp1ci4A/kPEDL sc9SzKq8it0hkLEuOhu7diwTq08kBj7pwAh5l/yD9XJB8ZwcnfKQTvb85Zt8EjT+ k16Fy/yoLgn+k49leU8fs7g1pGheQyxiq5ouqF00+aDmjFK2/r9DaeoPiq6qw2Ab Z/EKckM0KqYdvMCIktZxWGao+rljZVuE+kntmzLySRYCG5SdJLKAe2aDD7j+UUme pnj26dgDmGdQuKOpf7MLBn1YA6SLk/6NMSnfCf4p1bPAwrT40q2NnXZ50pyNOPba jYIYs+RJDh/gxwdGaJXulce5rYc/xwVU4FTwqW1vqv9ZMmb0wh72CnBAKgvM2Tzu 6HfjmYMdqEFnPHzNWs8Q88GwvTu3lA1BX3h0IfHtc+AWFBfTr/I= =E0/E -----END PGP SIGNATURE----- --/Isdj7O9hWi8F9Bn--