linux-kernel - Re: [PATCH 18/18] arm64: apple: Add initial Mac Mini 2020 (M1) devicetree

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Date:   Tue, 9 Feb 2021 09:32:45 +0900
From:   Hector Martin <marcan@...can.st>
To:     Rob Herring <robh@...nel.org>
Cc:     Arnd Bergmann <arnd@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        DTML <devicetree@...r.kernel.org>, Marc Zyngier <maz@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        SoC Team <soc@...nel.org>, Olof Johansson <olof@...om.net>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 18/18] arm64: apple: Add initial Mac Mini 2020 (M1)
 devicetree

On 09/02/2021 02.58, Rob Herring wrote:
> I'll also highlight there's a DT only tree[1] available to import DT
> related parts to other projects. It's generated from the kernel tree.
> Probably an overkill to copying at this point though.
> 
> Rob
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/devicetree/devicetree-rebasing.git/

This actually brings up something else: do we want (eventually) *all* 
Apple boards using these SoCs to have up-to-date devicetrees in the 
Linux kernel tree? Obviously not every device supported by mainline has 
proper ones in, but I don't know if that's expected or something to be 
avoided.

If this is intended to be kept in sync and be fully comprehensive, I 
might as well start planning out our longer term DT maintenance strategy 
around that (which might involve using that tree in our bootloader).

-- 
Hector Martin (marcan@...can.st)
Public Key: https://mrcn.st/pub