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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DF412C52D7B for ; Thu, 8 Aug 2024 17:55:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=etC0DI8zuc/FCVK7bAsYNe51UmZR+JY15MUuY4hL23c=; b=4C9BbDgbiYza/47GIif9hCHTlB 1wQzcQ4Plo7aAxnEUHP4Pws06ZW43B/sDqFFfyfrheB//85iwgZ3i27ikH+CdS84Gq/0Q1wtTvo+c x77lGOz7XOT3bpDTPffQXJmOawLM7k5wuy1CtkFSu0Fb3gFLwNCb883WpQWpJ0610ibL69rqTrv3l pTFSNEcPmAKxSNbZ83F04BE/B2789IoAFvop+xadaZKNtR6+QmtAriB+blSs6gaesXk1rv8kRc2T9 jHDGPQ77Im9/TSLwQlPT0ymda35SJWQQuO0zyKqVrm51E7BReFziNQkzj8UaJBKp6FUXc1+87VqZM ZV7JmEBw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sc7M4-000000098xV-1ABF; Thu, 08 Aug 2024 17:55:16 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sc7LU-000000098qo-11lq for linux-arm-kernel@lists.infradead.org; Thu, 08 Aug 2024 17:54:41 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 927BD61435; Thu, 8 Aug 2024 17:54:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 81CD4C32782; Thu, 8 Aug 2024 17:54:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723139679; bh=XfKJm34ejhy7gyJBoH0L9ZTqoacWaLvJPTszpV01X9w=; h=Date:Subject:List-Id:To:Cc:References:From:In-Reply-To:From; b=koz3p7XmsiXX8vzeOkk5XRC4GEGuHNrMziQzzlW7vRl8zuybW5DacO33u4csq8RGS jNAWDzFY7qn6xOiNIB/4Z3lmX/XWXborSfTue9N92C34NAmIPxbMKCugGiFvvFxNWr T0+DFF6AxTZU3lQmXVXK3zDVTPayjiPhsErBIcDmg41kjKHFySXddrsEu2sijdBpUh V001jNX7U+7YLrc7D18taFbL8D1SapPFHFICJs9yfc4KvXcHDCJGHqqf39y2ssDyLf aO7Nff19+3YhJqj0xh1ZseBFTq9KGxDQxcnrj2ni6qJ3YsyVFhsYby3NstalAc3I+Z fFW72zpqW+g5A== Message-ID: Date: Thu, 8 Aug 2024 19:54:26 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] ARM: dts: Fix undocumented LM75 compatible nodes To: "Rob Herring (Arm)" , soc@kernel.org, Krzysztof Kozlowski , Conor Dooley , Joel Stanley , Andrew Jeffery , Dinh Nguyen , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Avi Fishman , Tomer Maimon , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Vladimir Zapolskiy , Mark Jackson , Tony Lindgren , Michal Simek Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, imx@lists.linux.dev, linux-omap@vger.kernel.org References: <20240808164941.1407327-1-robh@kernel.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240808_105440_448351_8DA3C464 X-CRM114-Status: GOOD ( 15.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 08/08/2024 18:49, Rob Herring (Arm) wrote: > "lm75" without any vendor is undocumented. It works with the Linux > kernel since the I2C subsystem will do matches of the compatible string > without a vendor prefix to the i2c_device_id and/or driver name. > > Mostly replace "lm75" with "national,lm75" as that's the original part > vendor and the compatible which matches what "lm75" matched with. In a > couple of cases the node name or compatible gives a clue to the actual > part and vendor and a more specific compatible can be used. In these > cases, it does change the variant the kernel picks. > > "nct75" is an OnSemi part which is compatible with TI TMP75C based on > a comparison of the OnSemi NCT75 datasheet and configuration the Linux > driver uses. Adding an OnSemi compatible would be an ABI change. > > "nxp,lm75" is most likely an NXP part. NXP makes a LM75A and LM75B. > Both are 11-bit resolution and 100ms sample time, so "national,lm75b" is > the closest match. > > While we're here, fix the node names to use the generic name > "temperature-sensor". > > Signed-off-by: Rob Herring (Arm) > --- > SoC maintainers, Please take this directly. > --- Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof