From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C923E12CDAE; Thu, 8 Aug 2024 17:54:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723139679; cv=none; b=H73VCxB2e04ir7Z6YOAGr3hJI2BrdJBsHge/ID4fTrJIyaUcIYMsuJxYfxoBKfzsNzmuDeI474CuQe+g1rWC8ajuw7PUK1DcAuowm6WsbMaBAPJXxWr0hbVral/y91dRVOEBzpsbt6uLXvGSM+/SXLVlTbuY95L6SX+9jcPtjK0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723139679; c=relaxed/simple; bh=XfKJm34ejhy7gyJBoH0L9ZTqoacWaLvJPTszpV01X9w=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=V0xjNIVZeUo7TgdaWuD1BRQjuI+zVG2+tKuQCMSDqYly/A1Tf5pSgsxWTio2ZC7MfNDUA14AjBPPhDiqb686atspdfHBaEn71rCLxJ8t6Vw0MP+TBNpVzYj4WV9KXLINUAWF6saJFRpB+NXDiqBHLmWm7pSHrEPFAMOmRZ+Fr6o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=koz3p7Xm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="koz3p7Xm" 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 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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