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 6140447B406; Thu, 15 Oct 2026 20:08:55 +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=1792094938; cv=none; b=cpinZ7UHvt9WjtIT0x3g/qHWRZy3gRt4jizcisuYgL3rOYUEzjoYInDuOCCtatlWNvlqBXYtmwqLyo0oXTqMqURBD/Apl1WrBx1Lhj2eu2LRmAxtMjfAmjP+va+OruokwvpjFwJluT+VZ1uGs5k+UUvsckub/OQ2XCT92kGhWSI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792094938; c=relaxed/simple; bh=dwE/67uaybHNglH4LBSAcOL/EhJ5N0UM+zdkc5ca0HY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=XrTAa+R9GLx3ib2BbrrXLrHuThDKem7jQut9gh6Uk6vgaI7T2BdnBHtdVw81vF0D3QMJZ8yAwSyM2GI/jVYT8nI+ZvTUfJ6tsQ8r94lPbsItpK4DwQfZQ8R376CWSntO2hTBwsTq4Q2KzmH79shb0TXPMCEWNIE2f64TgHktAUU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=le80fort; 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="le80fort" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 87EDA1F000C4; Thu, 15 Oct 2026 20:08:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792094935; bh=MyqUgRNC8TTLXJOkDSkT/WyzPSUxfkFlEDCnXzm6lfQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=le80fortspeqftGamzmiSMSuo0PkgBlXQzfv60zEfh5BTVudPeOsoL34qGK/Awi5z 8PHxOyyOd0lE5OmXoYU4Tlbw7jVEtrfhcspbHmyyJoItMbutaypYv/XpgzGX2/YYRI bC3n//oLHsMBfiXwIkpGAknmWg7wUVL0Q9kwRf3liVQp0pf9NfYO47BXOm2DTwBnM2 0OWxO3s8kmGAYfZdyC/kJg/cMmqXnvpVix7knIVBZ8DZyXCXb7YbeDjXzqALnOy2kD E4oBnTfqgMXOPsBbNhfJeZh5jHcFupu74hX7KhxC6AzUcRRHKfkgOK4boLwLXGRNUa NgXrjyGJzMHnw== Date: Thu, 15 Oct 2026 15:08:53 -0500 From: "Rob Herring (Arm)" To: Frank.Li@oss.nxp.com Cc: Bjorn Andersson , Laurentiu Mihalcea , devicetree@vger.kernel.org, Mathieu Poirier , Pengutronix Kernel Team , Krzysztof Kozlowski , Frank Li , linux-kernel@vger.kernel.org, Peng Fan , Fabio Estevam , linux-arm-kernel@lists.infradead.org, linux-remoteproc@vger.kernel.org, Conor Dooley , Sascha Hauer , imx@lists.linux.dev Subject: Re: [PATCH v5 1/3] dt-bindings: remoteproc: imx_rproc: document memory-region-names to avoid hidden ABI Message-ID: <179209493314.2837720.2349962210068858296.robh@kernel.org> References: <20261015-memory-region-name-v5-0-abc358b39a96@nxp.com> <20261015-memory-region-name-v5-1-abc358b39a96@nxp.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261015-memory-region-name-v5-1-abc358b39a96@nxp.com> On Thu, 15 Oct 2026 10:39:22 -0400, Frank.Li@oss.nxp.com wrote: > From: Laurentiu Mihalcea > > Document the optional memory-region-names property. > > The driver currently derives the memory region type from the referenced > memory node name, creating a hidden DT ABI. Since memory node names are > not constrained by the binding, incorrect names can silently pass DT > validation, as seen in examples using "vdevbuffer" instead of > "vdev0buffer" ([1] and [2]). > > Add memory-region-names to explicitly identify the expected memory regions > and avoid relying on memory node names as ABI. > > Link: https://lore.kernel.org/imx/a3602ef8-2b77-4cc3-adef-2c4cba08a5d9@nabladev.com/ [1] > Link: https://lore.kernel.org/imx/alexXTYQHUs76J7v@SMW015318/T/#mb9dc709ff3adc24d9db6d30c973f37b580f6f1f9 [2] > Signed-off-by: Laurentiu Mihalcea > Signed-off-by: Frank Li > --- > Use optional property to keep back compatible with old platform. > New platform should use memory-region-names. > --- > .../devicetree/bindings/remoteproc/fsl,imx-rproc.yaml | 11 +++++++++++ > 1 file changed, 11 insertions(+) > Reviewed-by: Rob Herring (Arm)