linux-kernel - Re: [PATCH 1/2] dt-bindings: media: mediatek-jpeg-encoder: change max ioomus count

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Message-ID: <20240109032731.GA2578937-robh@kernel.org>
Date: Mon, 8 Jan 2024 20:27:31 -0700
From: Rob Herring <robh@...nel.org>
To: Eugen Hristev <eugen.hristev@...labora.com>
Cc: bin.liu@...iatek.com, matthias.bgg@...il.com, angelogioacchino.delregno@...labora.com, linux-media@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH 1/2] dt-bindings: media: mediatek-jpeg-encoder: change
 max ioomus count

On Wed, Dec 27, 2023 at 03:08:11PM +0200, Eugen Hristev wrote:
> MT8186 has 4 iommus in the list, to cope with this situation, adjust
> the maxItems to 4 (instead of previous 2).
> Add also minItems as 1 since iommus are mandatory, to avoid warning
> on the example.

maxItems alone means minItems is the same size. If IOMMU is required, 
then 'required' is where that is defined. Is there a case where 1 IOMMU 
is valid? If so, what h/w has this case.

Rob