linux-kernel - Re: [PATCH 1/1] dt-bindings: arm: lpc: add missed lpc43xx board

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Message-ID: <09089071-57fc-4495-b6ee-159c59d59650@mleia.com>
Date: Mon, 2 Jun 2025 20:17:06 +0300
From: Vladimir Zapolskiy <vz@...ia.com>
To: Frank Li <Frank.li@....com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Alexander Stein <alexander.stein@...tq-group.com>,
 Marek Vasut <marex@...x.de>, Peng Fan <peng.fan@....com>,
 Michael Walle <mwalle@...nel.org>, Fabio Estevam <festevam@...x.de>,
 Markus Niebel <Markus.Niebel@...group.com>,
 Frieder Schrempf <frieder.schrempf@...tron.de>,
 Francesco Dolcini <francesco.dolcini@...adex.com>,
 Max Merchel <Max.Merchel@...tq-group.com>, Tim Harvey
 <tharvey@...eworks.com>,
 "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
 <devicetree@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>,
 imx@...ts.linux.dev
Subject: Re: [PATCH 1/1] dt-bindings: arm: lpc: add missed lpc43xx board

On 6/2/25 19:04, Frank Li wrote:
> On Mon, Jun 02, 2025 at 06:34:14PM +0300, Vladimir Zapolskiy wrote:
>> On 6/2/25 17:06, Frank Li wrote:
>>> Add missed legancy lpc43xx board compatible string to fix below CHECK_DTB
>>> warnings:
>>> arch/arm/boot/dts/nxp/lpc/lpc4337-ciaa.dtb: /: failed to match any schema with compatible: ['ciaa,lpc4337', 'nxp,lpc4337', 'nxp,lpc4350']
>>>
>>> Signed-off-by: Frank Li <Frank.Li@....com>
>>> ---
>>>    .../devicetree/bindings/arm/fsl.yaml          | 23 +++++++++++++++++++
>>>    1 file changed, 23 insertions(+)
>>
>> I prefer to see NXP SoC powered boards under Documentation/devicetree/bindings/arm/nxp/
>>
>> LPC18XX/LPC43XX SoCs are not Freescale.
> 
> Generally, we don't distingiush that, new s32g chip also in this files.
> All nxp/fsl was maintained by one person and everyone know these are one
> company now.

Well, my concern is actually not about the companies, but these two SoC
families are totally different, the peripherals or core controllers are
all different, it makes little sense to mix them up.

I won't raise any questions or insist on the correctness of i.MX placement
under arm/nxp or arm/freescale, but NXP LPC32xx and NXP LPC18xx/LPC43xx dt
bindings shall be put under arm/nxp for certain.

--
Best wishes,
Vladimir