linux-kernel - Re: [PATCH v5 6/7] arm64: dts: mediatek: mt8173: Drop VDEC

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Date:   Wed, 26 Jul 2023 15:12:17 -0400
From:   Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
To:     Matthias Brugger <matthias.bgg@...il.com>
Cc:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>, kernel@...labora.com,
        Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        Hans Verkuil <hverkuil-cisco@...all.nl>
Subject: Re: [PATCH v5 6/7] arm64: dts: mediatek: mt8173: Drop VDEC_SYS reg
 from decoder

On Fri, Jun 30, 2023 at 11:14:12AM -0400, Nícolas F. R. A. Prado wrote:
> Remove the VDEC_SYS register space from the decoder, so that the node
> address becomes that of VDEC_MISC, solving the long-standing conflicting
> addresses between this node and the vdecsys clock-controller node:
> 
> arch/arm64/boot/dts/mediatek/mt8173.dtsi:1365.38-1369.5: Warning (unique_unit_address_if_enabled): /soc/clock-controller@...00000: duplicate unit-address (also used in node /soc/vcodec@...00000)
> 
> The driver makes use of this register space, however, so also add a
> phandle to the VDEC_SYS syscon to maintain functionality.
> 
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

Hi Matthias,

just to let you know that Hans has already picked up patches 1-5, and they're on
their way to the media tree:
https://lore.kernel.org/all/af0772c6-7052-ce13-dbf3-d403b06aad02@xs4all.nl

So feel free to pick patches 6 and 7. Though note that these DT changes depend
on those driver patches (commits 1-5) to work.

Thanks,
Nícolas