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References: <20211115073240.3476043-1-calvinzhang.cool@gmail.com>
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From:   Rob Herring <robh+dt@kernel.org>
Date:   Mon, 15 Nov 2021 08:05:45 -0600
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Subject: Re: [PATCH v2] of: make MAX_RESERVED_REGIONS configurable
To:     Calvin Zhang <calvinzhang.cool@gmail.com>
Cc:     Randy Dunlap <rdunlap@infradead.org>,
        Frank Rowand <frowand.list@gmail.com>,
        devicetree@vger.kernel.org,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
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On Mon, Nov 15, 2021 at 1:33 AM Calvin Zhang <calvinzhang.cool@gmail.com> wrote:
>
> MAX_RESERVED_REGIONS has changed several times. Max reserved regions
> count grows bigger as more SOC subsystems require reserved regions.
>
> Add a Kconfig for it so that when properly configured, the static
> reserved_mem array consumes less memory on systems with few reserved
> regions.

Please read prior discussions:

https://lore.kernel.org/all/?q=of+MAX_RESERVED_REGIONS

And these 2 in particular:

https://lore.kernel.org/all/CAL_JsqJQcWsguwfehAoaRf4o-2VqXxSzKzTqg7s4+N1bp=6V5Q@mail.gmail.com/
https://lore.kernel.org/all/CAL_JsqLGvUYQmCGXLgSO+6kFj2i87dpaTbMGbyu5oMt=eeu35A@mail.gmail.com/