linux-kernel - Re: [PATCH v6, 00/15] Using component framework to support multi hardware decode

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Date:   Mon, 27 Sep 2021 09:56:10 -0700
From:   Steve Cho <stevecho@...omium.org>
To:     Yunfei Dong <yunfei.dong@...iatek.com>
Cc:     Alexandre Courbot <acourbot@...omium.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Tzung-Bi Shih <tzungbi@...omium.org>,
        Tiffany Lin <tiffany.lin@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Tomasz Figa <tfiga@...gle.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Fritz Koenig <frkoenig@...omium.org>,
        Irui Wang <irui.wang@...iatek.com>,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        srv_heupstream@...iatek.com, linux-mediatek@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v6, 00/15] Using component framework to support multi
 hardware decode

Hi Yunfei,

> This patch dependents on : "media: mtk-vcodec: support for MT8183 decoder"[1] and
> "Mediatek MT8192 clock support"[2].
>
> 1: Multi hardware decode is based on stateless decoder, MT8183 is the first time
> to add stateless decoder. Otherwise it will cause conflict. This patch will be
> accepted in 5.15[1].
Just a few basic questions. What kind of "conflict" are you expecting here?
Are you referring to kernel "5.15" here?
Probably not. If yes, then that sounds strange to me considering our
current kernel uprev plans and current kernel used for MT8183.

> 2: The definition of decoder clocks are in mt8192-clk.h, this patch already in clk tree[2].
>
> [1]https://patchwork.linuxtv.org/project/linux-media/list/?series=5826
This link seems to be no longer available.

> [2]https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git/commit/?h=clk-next&id=f35f1a23e0e12e3173e9e9dedbc150d139027189