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Message-ID: <0723c329-475c-42a1-f6d5-f478d649aef1@collabora.com>
Date:   Wed, 14 Sep 2022 10:17:36 +0200
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Subject: Re: [PATCH] drm: mediatek: Fix display vblank timeout when disable
 dsi
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To:     xinlei.lee@mediatek.com, chunkuang.hu@kernel.org,
        p.zabel@pengutronix.de, airlied@linux.ie, daniel@ffwll.ch,
        matthias.bgg@gmail.com, jitao.shi@mediatek.com
Cc:     rex-bc.chen@mediatek.com, dri-devel@lists.freedesktop.org,
        linux-mediatek@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Project_Global_Chrome_Upstream_Group@mediatek.com
References: <1663136309-29491-1-git-send-email-xinlei.lee@mediatek.com>
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
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Il 14/09/22 08:18, xinlei.lee@mediatek.com ha scritto:
> From: Xinlei Lee <xinlei.lee@mediatek.com>
> 
> Dsi is turned off at bridge.disable, causing crtc to wait for vblank timeout.
> It is necessary to add count protection to turn off dsi, and turn off at post_disable.
> 
> Fixes: cde7e2e35c28 ("drm/mediatek: Separate poweron/poweroff from enable/disable and define new funcs")
> Signed-off-by: Xinlei Lee <xinlei.lee@mediatek.com>

Hello Xinlei,
which machine is this commit targeting?

Can you please try to reproduce again the issue that you're seeing with my
mtk_dsi fix [1], but without this commit?

Thanks,
Angelo

[1]: 
https://patchwork.kernel.org/project/linux-mediatek/patch/20220721172727.14624-1-angelogioacchino.delregno@collabora.com/