linux-kernel - Re: [PATCH v8 14/20] media: platform: mtk-mdp3: Refactor CMDQ writes for CMDQ API change

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Message-ID: <9258e1ca-56b2-4fb6-bf17-40c86b8c05b6@collabora.com>
Date: Mon, 20 Oct 2025 12:04:32 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Jason-JH Lin <jason-jh.lin@...iatek.com>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Jassi Brar <jassisinghbrar@...il.com>,
 Chun-Kuang Hu <chunkuang.hu@...nel.org>,
 Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Matthias Brugger <matthias.bgg@...il.com>,
 Nicolas Dufresne <nicolas@...fresne.ca>, Nancy Lin <nancy.lin@...iatek.com>,
 Singo Chang <singo.chang@...iatek.com>,
 Paul-PL Chen <paul-pl.chen@...iatek.com>, Moudy Ho <moudy.ho@...iatek.com>,
 Xiandong Wang <xiandong.wang@...iatek.com>,
 Sirius Wang <sirius.wang@...iatek.com>, Fei Shao <fshao@...omium.org>,
 Chen-yu Tsai <wenst@...omium.org>,
 Project_Global_Chrome_Upstream_Group@...iatek.com,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, linux-mediatek@...ts.infradead.org,
 linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org
Subject: Re: [PATCH v8 14/20] media: platform: mtk-mdp3: Refactor CMDQ writes
 for CMDQ API change

Il 17/10/25 08:44, Jason-JH Lin ha scritto:
> Update CMDQ register writes to use subsys-aware APIs,
> cmdq_pkt_write_subsys() and cmdq_pkt_write_mask_subsys().
> This conforms to recent CMDQ API changes that split access by
> subsys ID support.
> 
> Since all current MDP SoCs support subsys ID, and future MDP
> deployments will not run on SoCs without subsys ID, only
> subsys-specific API calls are needed. No logic for non-subsys ID
> hardware is required.
> 
> Signed-off-by: Jason-JH Lin <jason-jh.lin@...iatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>