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 D15C323758; Fri, 17 May 2024 09:15:20 +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=1715937320; cv=none; b=Gu406ULYg9vaIMrD3bdm2+vHleC3gH9rxGah8Uktpe63FAfQWCLv4u6tDHABL+hcZ6UYObejMENOn3V8FAyz0e3I+XU3hD10+sCYhVEy2hb6VHQCLNIo14ssCiUsqbI5AKTEoyg4mBT1yVIrvR3ylpixY3VTGjjkw7tipYmpaeE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715937320; c=relaxed/simple; bh=FW5Dq52kI/4tqHDdl7rHYWj6hQF7PsNPsyYt4vRar0M=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=dP+vCfsCZnK3fCASWGNZNHqkH8/PTdVROXA7FeBwYl1LKSNiAkrH74vvc3TbdESLBOi1m1DcemOZo2s3yNi5nOrwX2Yw0QBqXiarZ8MfFovrVXI8268HJL+fOmGspjB+pMxlY4vUf8+Y4shue2vjFfiF1wuEJxENyHY833K3QUE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nLA6sKzQ; 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="nLA6sKzQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 94E7FC2BD10; Fri, 17 May 2024 09:15:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715937320; bh=FW5Dq52kI/4tqHDdl7rHYWj6hQF7PsNPsyYt4vRar0M=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=nLA6sKzQqMy8zQLBOxVbt/Rb+OzB9MDr3+LiHfUs9tzlyqy5BO+TvYWkGdxkgAQXm 5NcdY4go2Rjmc2vYDpC/rViDH8EX1j4rHfPtsbYTva0LvRds0ZXVL5u8ew3aiFkFr9 qCho+p2tSkhe7VR8C6RbylzAdSkiANoYEcDvrO6MULn05HA7mTmSeUJeseDx3oUTgW 8isj20iEZXrlQrhYvTiVurW8Hz8TKCwheoZC5f37ZthM6j/ieEaRqLMqDyY14Zd8Ev /2MzCp9H7YbzA0Ed5XbkNUiGsciX3NaOjnBRJ3FIcRLFTs0FFyMkLoMYt5RLRGTS8G fAVrDWuMMRb2A== Message-ID: Date: Fri, 17 May 2024 11:15:13 +0200 Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 12/13] regulator: add pm8008 pmic regulator driver To: Johan Hovold Cc: Krzysztof Kozlowski , Andy Shevchenko , Krzysztof Kozlowski , Johan Hovold , Lee Jones , Mark Brown , Linus Walleij , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Liam Girdwood , Das Srinagesh , Satya Priya , Stephen Boyd , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org References: <20240506150830.23709-1-johan+linaro@kernel.org> <20240506150830.23709-13-johan+linaro@kernel.org> <8d2ea17c-f91e-4e14-a239-e5e999f6ac50@linaro.org> <1df61b7c-29c4-4537-a0b6-75785606eeae@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 09/05/2024 14:26, Johan Hovold wrote: > On Thu, May 09, 2024 at 12:48:18PM +0200, Krzysztof Kozlowski wrote: >> On 09/05/2024 10:57, Johan Hovold wrote: >>> On Tue, May 07, 2024 at 08:14:43PM +0200, Krzysztof Kozlowski wrote: >>>> On 07/05/2024 19:22, Andy Shevchenko wrote: > >>>> Yeah, please use ID table, since this is a driver (unless I missed >>>> something). Module alias does not scale, leads to stale and duplicated >>>> entries, so should not be used as substitute of ID table. Alias is >>>> suitable for different cases. >>> >>> There's no scalability issue here. If the driver uses driver name >>> matching then there will always be exactly one alias needed. >> >> And then we add one more ID with driver data and how does it scale? > > That's what I wrote in the part of my reply that you left out. If a > driver is going to be used for multiple devices, then a module id table > makes sense, but there is no need to go around adding redundant tables > just for the sake of it when a simple alias will do. > I still in general prefer ID tables, because I saw many times people copy existing code while not understanding above subtleties thus they just keep multiplying MODULE_ALIAS, but I understand your explanation and it is reasonable. FWIW: Acked-by: Krzysztof Kozlowski Best regards, Krzysztof