linux-kernel - Re: [PATCH v9, 3/4] mailbox: mtk-cmdq: add gce ddr enable support flow

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Message-ID: <294fa048-1dc0-ea52-d65b-2c6c0c48bafc@collabora.com>
Date:   Thu, 6 Oct 2022 11:30:47 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Yongqiang Niu <yongqiang.niu@...iatek.com>,
        CK Hu <ck.hu@...iatek.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>
Cc:     Jassi Brar <jassisinghbrar@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        Hsin-Yi Wang <hsinyi@...omium.org>
Subject: Re: [PATCH v9, 3/4] mailbox: mtk-cmdq: add gce ddr enable support
 flow

Il 06/10/22 06:34, Yongqiang Niu ha scritto:
> add gce ddr enable control flow when gce suspend/resume
> 
> when all cmdq instruction task has been processed done,
> we need set this gce ddr enable to disable status to tell
> cmdq hardware gce there is none task need process, and the hardware
> can go into idle mode and no access ddr anymore, then the spm can go
> into suspend.
> 
> the original issue is gce still access ddr when cmdq suspend function
> call, but there is no task run.
> so, we need control gce access ddr with this flow.
> when cmdq suspend function, there is no task need process, we can
> disable gce access ddr, to make sure system go into suspend success.
> 
> Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>


I already gave you my Reviewed-by tag for this patch and here nothing has
changed from v8 to v9. Please retain tags that were given to you in these cases.

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