linux-kernel - Re: [PATCH v5 3/7] media: dt-bindings: mediatek,vcodec: Remove VDEC

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Message-ID: <3348348a-ee62-c9c4-d9b4-0df6745ff6a0@linaro.org>
Date:   Sun, 2 Jul 2023 12:30:09 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>
Cc:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>, kernel@...labora.com,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Tiffany Lin <tiffany.lin@...iatek.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v5 3/7] media: dt-bindings: mediatek,vcodec: Remove
 VDEC_SYS register space

On 30/06/2023 17:14, Nícolas F. R. A. Prado wrote:
> The binding expects the first register space to be VDEC_SYS. However
> this register space is already assigned to a different node on both
> MT8173 and MT8183: a clock-controller node called 'vdecsys' which is
> also a syscon.
> 
> In order to resolve the overlapping address ranges, remove the VDEC_SYS
> register space from the video decoder, and add a new property to hold
> the phandle to the syscon, so that iospace can still be handled.
> 
> Also add reg-names to be able to tell that this new register schema is
> used, so the driver can keep backward compatibility.
> 
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof