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=-6.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 D526DC433DB for ; Thu, 18 Mar 2021 05:45:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8BE7D64F0C for ; Thu, 18 Mar 2021 05:45:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229610AbhCRFos (ORCPT ); Thu, 18 Mar 2021 01:44:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:52364 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229512AbhCRFoT (ORCPT ); Thu, 18 Mar 2021 01:44:19 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7BCD164EC4; Thu, 18 Mar 2021 05:44:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616046259; bh=d6af8rjjSi2t3Ya2rM1cTKrbkpK3hPDilCyxjQaGlBA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Rc0UIGu7CI4Y4tNPh6UTjIr6a6gGVZ50NwNuJF8ZBjmiphXlK/JgpQxKGuLhMcfj9 GbaA57am7o8uIv0hMk3U+J0BM3ZncxsHmfHQ4hYKbeKdYIf4pSUQF+9u0uNrWhCEnQ YeJdBCSShbw6+kibZxfwAKLx9XrgLieGVU/L41NWKMXGUIj8aq7xabnLOVJ5y3ep8S 9rQqumbjY8xf8IeFxcUoTwBLUganICe0CcO9qwgwDlUr/aUDwCS3nHuD4B5qkS4kTB QO37X5uSvqco85+yWXosbv4wU0Ftc7OFo05xOCkUNZFKWY118jsjReNPY/Y0uQuG3K UKuvEV9effegw== Date: Thu, 18 Mar 2021 06:44:15 +0100 From: Wolfram Sang To: Chris Packham Cc: David Laight , 'Guenter Roeck' , "linux-hwmon@vger.kernel.org" , "jdelvare@suse.com" , "linuxppc-dev@lists.ozlabs.org" , "linux-kernel@vger.kernel.org" , "linux-i2c@vger.kernel.org" Subject: Re: Errant readings on LM81 with T2080 SoC Message-ID: <20210318054415.GB1053@kunai> Mail-Followup-To: Wolfram Sang , Chris Packham , David Laight , 'Guenter Roeck' , "linux-hwmon@vger.kernel.org" , "jdelvare@suse.com" , "linuxppc-dev@lists.ozlabs.org" , "linux-kernel@vger.kernel.org" , "linux-i2c@vger.kernel.org" References: <20210311081842.GA1070@ninjato> <94dfa9dc-a80c-98ba-4169-44cce3d810f7@alliedtelesis.co.nz> <725c5e51-65df-e17d-e2da-0982efacf2d2@roeck-us.net> <1a7d43e6a16c46cdbe63b497b29ac453@AcuMS.aculab.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="H+4ONPRPur6+Ovig" Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org --H+4ONPRPur6+Ovig Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > Probably depends on the device implementation. I've got multiple other=20 > I2C/SMBUS devices and the LM81 seems to be the one that objects. For the recored, there was just a similar case with a DA9063, but that one luckily had a bit to switch from SMBus to I2C mode, i.e. no timeout handling: [PATCH v6 1/1] mfd: da9063: Support SMBus and I2C mode --H+4ONPRPur6+Ovig Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmBS6K8ACgkQFA3kzBSg KbZVmxAAqwryS/bFzwCneErKw/kPhqTdQshdZeigjwzRhyd7LuOFinLlMZceJHXc 84YD8l2nZ8mCvOLY9dICpTEXlD6AhD5g5fa9JlXR5ns9XYSLBZ23Va0Y74lA6i5L RHi1jeknvEZIGjUBiMwX6Tt/yVAprILjYhaP+Gmt3sMQqNm1ixC7G475npgpyvLl gUiLewJlAMMVW7n9U7Gx0YS8Gyw9NPvFnKy+qreSQS9Imid+g8L6X9M6SZwGaYwJ hYXT/3i7Suj3Or9/+9ruDpYJk7qIIYZW5aclTKoICUC+sWyF1ykk3O1afOCDigfd cmEV2HUMWsGeD5w6mKMVOH2UckMtUK6ZMMwZJlJNUx5hMygcdCOOAm/pY+udLnV7 afYKoH1DHNJG9MpvESHSjA5muOAUmd0uryXMVs9KEC5iSBf9DCa9Rc+X2x6eZGbv +xWAKfLRqvvF6X0u2h0mO563+zZpKtRlZsxuCyFjibS1KQ3VmQg4sGxo/n+oRbLd kgF12d4NNLXC8AQey025OaDpu0Su43+J3MKQXOpFaWqzt94HyhUZGGttt20JLJIv QgfKRdXG8xr2/gANyRsQvH34NKWOZqDMHjodTpRBbP8FfX03tzGMLkcqaE6Vt0qw 5y/M1YQjtTSDQ9ftFajgSYUsknhXgnjxWNSyUMKnmu3A4XNeb2c= =Syxw -----END PGP SIGNATURE----- --H+4ONPRPur6+Ovig-- 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=-3.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 25FCFC433E0 for ; Thu, 18 Mar 2021 05:44:49 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 76FF264EFC for ; Thu, 18 Mar 2021 05:44:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 76FF264EFC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4F1GFB6jDPz30QQ for ; Thu, 18 Mar 2021 16:44:46 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=Rc0UIGu7; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=wsa@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=Rc0UIGu7; dkim-atps=neutral Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4F1GDj4nQBz2yQv for ; Thu, 18 Mar 2021 16:44:21 +1100 (AEDT) Received: by mail.kernel.org (Postfix) with ESMTPSA id 7BCD164EC4; Thu, 18 Mar 2021 05:44:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616046259; bh=d6af8rjjSi2t3Ya2rM1cTKrbkpK3hPDilCyxjQaGlBA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Rc0UIGu7CI4Y4tNPh6UTjIr6a6gGVZ50NwNuJF8ZBjmiphXlK/JgpQxKGuLhMcfj9 GbaA57am7o8uIv0hMk3U+J0BM3ZncxsHmfHQ4hYKbeKdYIf4pSUQF+9u0uNrWhCEnQ YeJdBCSShbw6+kibZxfwAKLx9XrgLieGVU/L41NWKMXGUIj8aq7xabnLOVJ5y3ep8S 9rQqumbjY8xf8IeFxcUoTwBLUganICe0CcO9qwgwDlUr/aUDwCS3nHuD4B5qkS4kTB QO37X5uSvqco85+yWXosbv4wU0Ftc7OFo05xOCkUNZFKWY118jsjReNPY/Y0uQuG3K UKuvEV9effegw== Date: Thu, 18 Mar 2021 06:44:15 +0100 From: Wolfram Sang To: Chris Packham Subject: Re: Errant readings on LM81 with T2080 SoC Message-ID: <20210318054415.GB1053@kunai> Mail-Followup-To: Wolfram Sang , Chris Packham , David Laight , 'Guenter Roeck' , "linux-hwmon@vger.kernel.org" , "jdelvare@suse.com" , "linuxppc-dev@lists.ozlabs.org" , "linux-kernel@vger.kernel.org" , "linux-i2c@vger.kernel.org" References: <20210311081842.GA1070@ninjato> <94dfa9dc-a80c-98ba-4169-44cce3d810f7@alliedtelesis.co.nz> <725c5e51-65df-e17d-e2da-0982efacf2d2@roeck-us.net> <1a7d43e6a16c46cdbe63b497b29ac453@AcuMS.aculab.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="H+4ONPRPur6+Ovig" Content-Disposition: inline In-Reply-To: X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "linux-hwmon@vger.kernel.org" , "jdelvare@suse.com" , "linux-kernel@vger.kernel.org" , David Laight , "linux-i2c@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , 'Guenter Roeck' Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" --H+4ONPRPur6+Ovig Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > Probably depends on the device implementation. I've got multiple other=20 > I2C/SMBUS devices and the LM81 seems to be the one that objects. For the recored, there was just a similar case with a DA9063, but that one luckily had a bit to switch from SMBus to I2C mode, i.e. no timeout handling: [PATCH v6 1/1] mfd: da9063: Support SMBus and I2C mode --H+4ONPRPur6+Ovig Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmBS6K8ACgkQFA3kzBSg KbZVmxAAqwryS/bFzwCneErKw/kPhqTdQshdZeigjwzRhyd7LuOFinLlMZceJHXc 84YD8l2nZ8mCvOLY9dICpTEXlD6AhD5g5fa9JlXR5ns9XYSLBZ23Va0Y74lA6i5L RHi1jeknvEZIGjUBiMwX6Tt/yVAprILjYhaP+Gmt3sMQqNm1ixC7G475npgpyvLl gUiLewJlAMMVW7n9U7Gx0YS8Gyw9NPvFnKy+qreSQS9Imid+g8L6X9M6SZwGaYwJ hYXT/3i7Suj3Or9/+9ruDpYJk7qIIYZW5aclTKoICUC+sWyF1ykk3O1afOCDigfd cmEV2HUMWsGeD5w6mKMVOH2UckMtUK6ZMMwZJlJNUx5hMygcdCOOAm/pY+udLnV7 afYKoH1DHNJG9MpvESHSjA5muOAUmd0uryXMVs9KEC5iSBf9DCa9Rc+X2x6eZGbv +xWAKfLRqvvF6X0u2h0mO563+zZpKtRlZsxuCyFjibS1KQ3VmQg4sGxo/n+oRbLd kgF12d4NNLXC8AQey025OaDpu0Su43+J3MKQXOpFaWqzt94HyhUZGGttt20JLJIv QgfKRdXG8xr2/gANyRsQvH34NKWOZqDMHjodTpRBbP8FfX03tzGMLkcqaE6Vt0qw 5y/M1YQjtTSDQ9ftFajgSYUsknhXgnjxWNSyUMKnmu3A4XNeb2c= =Syxw -----END PGP SIGNATURE----- --H+4ONPRPur6+Ovig--