linux-kernel - Re: [PATCH] arm: dts: mxs: Remove not used "fsl,imx2[38]-icoll' compatibles

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Message-ID: <db357e68-ddae-40be-8945-15734d3ec832@gmx.net>
Date: Wed, 28 Aug 2024 18:15:17 +0200
From: Stefan Wahren <wahrenst@....net>
To: Lukasz Majewski <lukma@...x.de>, Krzysztof Kozlowski <krzk@...nel.org>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm: dts: mxs: Remove not used "fsl,imx2[38]-icoll'
 compatibles

Hi Lukasz,

thanks for taking care of MXS DT issues.

Am 28.08.24 um 17:33 schrieb Lukasz Majewski:
> Hi Krzysztof,
>
>> On 28/08/2024 11:35, Lukasz Majewski wrote:
>>> The 'fsl,imx23-icoll' and 'fsl,imx28-icoll' are not used at any
>>> place in the Linux kernel - instead for imx2[38] the 'fsl,icoll' is
>>> used.
>>>
>>> Hence, it is possible to remove them.
>> Preference is to have SoC-specific compatibles in the front, so
>> instead of dropping it, these should be documented as bindings.
+1

We cannot conclude that nobody is using these compatibles.
>>
>> imx23 and imx28 are quite old platforms, so I think no one really
>> cared about dtbs_check and their bindings. If the platform is being
>> actively used (as judging by your contributions) then some bigger
>> cleanup could be useful. Also, drop your email somewhere in the files
>> or maintainer entry, so we will know whom to ping when asking for
>> platform removal.\
>> But if there is no product on imx23/28, then I am afraid it might be
>> wasted effort - isn't it planned for deprecation/removal by Arnd?
>>
> I cannot say about imx23, but for sure imx287 will stay with us for
> many, many years.
>
> imx287 (arm9) is still in active production, for extended life time
> devices...
>
> It is just pervasive in the industry.
I can confirm this.

Best regards