linux-kernel - Re: [PATCH v2 1/2] dt-bindings: media: mediatek-jpeg-encoder: change max iommus count

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Message-ID: <20240109190617.GA2958445-robh@kernel.org>
Date: Tue, 9 Jan 2024 13:06:17 -0600
From: Rob Herring <robh@...nel.org>
To: Eugen Hristev <eugen.hristev@...labora.com>
Cc: linux-media@...r.kernel.org, devicetree@...r.kernel.org, linux-mediatek@...ts.infradead.org, bin.liu@...iatek.com, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, angelogioacchino.delregno@...labora.com, kernel@...labora.com, matthias.bgg@...il.com
Subject: Re: [PATCH v2 1/2] dt-bindings: media: mediatek-jpeg-encoder: change
 max iommus count

On Tue, Jan 02, 2024 at 12:38:00PM +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