linux-kernel - Re: [PATCH 14/38] dt-bindings: media: mediatek,mt8195-jpeg: Allow range number in node address

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Message-ID: <70ae6787-ee0b-43a0-851e-1fb6c82f6c31@kernel.org>
Date: Thu, 24 Jul 2025 11:14:43 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 linux-mediatek@...ts.infradead.org, robh@...nel.org
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Subject: Re: [PATCH 14/38] dt-bindings: media: mediatek,mt8195-jpeg: Allow
 range number in node address

On 24/07/2025 10:38, AngeloGioacchino Del Regno wrote:
> The dual and triple core jpeg encoder and decoder (respectively)
> on MT8195 are far apart: the only way to have this to make sense
> is to split those in multiple address ranges in device trees as
> one big range would overlap with other IP in at least the MT8195
> SoC.
> 
> Change both the jpegdec and jpegenc bindings to allow specifying
> children nodes such as "jpegdec@0,10000", "jpegdec@1,0" or for
> encoder "jpegenc@0,0", "jpegenc@1,0" to resolve dtbs_check issues.


This should not be needed for standard MMIO/simple-bus nodes. I think
DTS is wrong here.

Which cases really need the ','?


Best regards,
Krzysztof