From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 40F60399358; Wed, 10 Jun 2026 09:14:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781082867; cv=none; b=a1dzat8jb+8MgJZtnoNp78eV2scbJg5vPeZ3P6b57hLyNnMapbq4z4g347KYAd4fyxV96cVaf9MGXa0WlCGiPoZIGxLQCl48eQH2Zhmc+eFN8SU8NyIx8CkQvp+OablU3ZiMs1pnnz9ZirtbG1cFzPcuuTQLektc1csQMRxw3+0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781082867; c=relaxed/simple; bh=Su2g6xxlmcA0BfDo/FxGGSZUO07XTGxPyGU7YINLNbU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=K0j/CySIs1foSkrrFSeFz1Y3IVQH4QvrDFmFSy+9qEjDGbosiaZ0YsZf6dlwvMn3d0aih45d6eeFV6GUirNJVqHG6girG0A6v7A6c4aHjHMsA1BOKJLaDCSqGLzjQvbZ9mnESqrDtoCLYaHu+MyvmF5laPtZJCwxEqbxEZEelIw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Cef4/8iq; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Cef4/8iq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 07C351F00898; Wed, 10 Jun 2026 09:14:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781082865; bh=aN/Cp+ThkwaknSIc3DIlddMyUfF7OTN0+hAp5wJoOIc=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=Cef4/8iq0wTRlqxO6O8ZgCj1XALuP+G8klNrmQ4rsoU6vxVqDrvr43NLhKxxSu+hd +R5enCvIkL7OG7rPfwFEHw5Bqc13YS8Ao3cNQVn76CCIawr+qc+bBkVSKRU7BzajXf qC05/UaVVBj8akrvOImlgXyF9yeVjgdh0UD8v7Pyks98uk56+ux4D5n9vEwyZxD4iG 7uoJNLP6Am+vryeKmg9QvBDJxnBELWDcpjamoVUILFc6oWcYjS5IFq++JzoG+QtacL f/0dZAklYOSveyfpqh6INcVKp/1uFGPZHrUkoZx2qNSl3c/zoGRF0uafzDhsnIrxaq 4TVog9DsVSMnQ== Message-ID: Date: Wed, 10 Jun 2026 11:14:18 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/4] dt-bindings: remoteproc: imx_rproc: document optional "memory-region-names" To: Laurentiu Mihalcea Cc: Bjorn Andersson , Mathieu Poirier , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sascha Hauer , Peng Fan , Fabio Estevam , Daniel Baluta , Francesco Dolcini , linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20260605113621.1479-1-laurentiumihalcea111@gmail.com> <20260605113621.1479-2-laurentiumihalcea111@gmail.com> <20260610-adventurous-granite-marmoset-e0eaa8@quoll> <2fc48536-5af9-419e-b4df-746b678cb6ab@gmail.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/06/2026 11:10, Laurentiu Mihalcea wrote: > > > On 6/10/2026 12:37 AM, Krzysztof Kozlowski wrote: >> On Fri, Jun 05, 2026 at 04:36:18AM -0700, Laurentiu Mihalcea wrote: >>> From: Laurentiu Mihalcea >>> >>> The names of the carveout regions are derived using the names of the >>> reserved memory devicetree nodes, which are referenced using the >>> "memory-region" property. This adds a restriction on the names of said >>> devicetree nodes, often bearing specific names such as: "vdevbuffer", >>> "vdev0vring0", "rsc-table", etc... This goes against the devicetree >>> specification's recommendation, which states that the devicetree node >>> names should be generic. >> >> No, it does not. Names like rsc-table feels exactly like DT spec is >> asking - for a name matching purpose. Are you sure you read the spec? > > Quoting from the spec: > > "The name of a node should be somewhat generic, reflecting the function of the > device and not its precise programming model" And read the rest of the spec, please. > > and looking at the examples provided in "2.2.2 Generic Names Recommendation", > wouldn't "memory" be a more appropriate choice for the DT node name instead of > "rsc-table" since it's more generic, while still matching the purpose > of the device? Or perhaps I'm interpreting this the wrong way? You just took one piece skipping the rest. Also binding in the dtschema repeats that. > >> >>> >>> Fix this by documenting an additional, optional property: >>> "memory-region-names". This way, the carveout names can use the values >>> passed via "memory-region-names", while keeping the devicetree node >>> names of the reserved memory regions generic. >> >> I don't see how anything here is fixed. memory-region-names has nothing >> to do with node names. > > The idea here is that the names of the carveout regions can now be passed > via the "memory-region-names" property. Previously, we were using the DT > node names for that. memory-region phandles give you that, not names. You need to state why this is not sufficient. > > Thus, we can now use the more generic "memory" name for the DT nodes since we > no longer use them for the carveout names. That's wrong reason for doing this change. Also random names here change nothing. Best regards, Krzysztof