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 A7D25353A86; Fri, 31 Jul 2026 09:42:43 +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=1785490964; cv=none; b=fYS22MCBMNZM4cgji3XIlA4QrrDuR9ofz5vNZ+xoPOIgQDOVVeNK3YGPISk/SOP4cEvfBVi+IETy6B+yM30Eri4uCrWLwXRBRvnplrqV3sonPvy+LciOVAx6846pIytr+l0L0Rc7mgEVhUC8wpfWXvGJ15FSQO080w/zwE079HM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785490964; c=relaxed/simple; bh=sokOhAi8UFh13BMDC4m//yIkpPQvGY6Cagd17kH/HVQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=iI14MTdoQXvLLwRwoz75luWJumR+q7MKPISfqetBq47WSi/ioQPaf8bxUTYOGn4gseJuPXKvhLzt12wxRb/7vy6ef78hjdOk45Uu0NYpNZ0xrsUUwZcd93kxdJ4LGQWe+gBK+11VNkv3goesxxEdXLFCfIyGZ64300gtKZ+hUUY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=csM+11/2; 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="csM+11/2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3029F1F000E9; Fri, 31 Jul 2026 09:42:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785490963; bh=vKqHgu89toClZtLrbRRFUeLu3qUj+HkOGqSj5VPW9kE=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=csM+11/210+dEgLAvpyhQmeNsaVy9NwZF+/VLKA8SWXD/y61KIKPlB+s1XzT53fox C0ZY+STU75/1jSVrICi116uzXNAU45yARi4Zu0JvdJ2mW0qrhOg0PSBsdQzHCHvD7E kI47pja1YJBSbmOS5093LDKEeKXe9axXf8g0EK6fFWXSxmlIV723Pjp8nBS0Gz6Vip sZXQMZylJHsN2wkoWIsKSs08w435AylxU18P3/f+zdYzUOr2Ut66Bji4rWacn1c8M0 2PhHZdDy0Rg/UCuQTkMKjzYt88q3JPLvX0+JYlJam69SWdi41YwcdxRw+wUr7vmUTa oA5YLZTetnxGg== Message-ID: <47266a1b-1e19-4a9d-af0c-9a5abe51fabd@kernel.org> Date: Fri, 31 Jul 2026 11:42:33 +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 v2 1/4] dt-bindings: remoteproc: imx_rproc: document optional "memory-region-names" To: Frank Li Cc: Mathieu Poirier , Laurentiu Mihalcea , Bjorn Andersson , 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-accomplished-antique-mink-cf0ead@quoll> <562096a5-6601-42ae-9d88-90a72ee075fc@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 11/06/2026 16:24, Frank Li wrote: > On Thu, Jun 11, 2026 at 03:47:00PM +0200, Krzysztof Kozlowski wrote: >> On 10/06/2026 16:29, Frank Li wrote: >>> For example: >>> >>> rsc_table: rsc-table@90000000 >>> { ret = <0x90000000>; >>> no-map; >>> } >>> >>> m4 { >>> ... >>> memory-region = <&rsc_table>; >>> } >>> >>> If you change node name "rsc-table" to "memory", driver will failure >>> because it parse node name "rsc-table", which phandle point to. but no >>> binding to restrict node name to "rsc-table". So rsc-table became hidden >>> ABI. >> >> Then you need to fix the driver to not parse the node names. Node names >> are not supposed to be ABI. > > Yes, that is this patch set's purpose. Just need below steps to do smooth > migration. > 1. allow memory-region-name as options for binding > 2. update driver to parse memory-region-names > 3. update all dts to add memory-region-names > 4. remove old Node name code and change binding to force memory-region-names > Obviously that is ABI break, so no. Fix the driver properly instead of coming with band-aid solutions ignoring my feedback here. v3 repeats THE SAME mistakes and basically asks me to give the same NAK. Best regards, Krzysztof