linux-kernel - Re: [PATCH v2] drm/mediatek: Add spinlock for setting vblank event in atomic

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Message-ID: <eba543f6-444c-3e7f-4f33-4c7114be16c0@collabora.com>
Date:   Wed, 20 Sep 2023 11:15:10 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     "Jason-JH.Lin" <jason-jh.lin@...iatek.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>
Cc:     Alexandre Mergnat <amergnat@...libre.com>,
        Jason-ch Chen <jason-ch.chen@...iatek.com>,
        Johnson Wang <johnson.wang@...iatek.com>,
        Singo Chang <singo.chang@...iatek.com>,
        Nancy Lin <nancy.lin@...iatek.com>,
        Shawn Sung <shawn.sung@...iatek.com>,
        dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        Fei Shao <fshao@...omium.org>
Subject: Re: [PATCH v2] drm/mediatek: Add spinlock for setting vblank event in
 atomic_begin

Il 20/09/23 11:06, Jason-JH.Lin ha scritto:
> Add spinlock protection to avoid race condition on vblank event
> between mtk_drm_crtc_atomic_begin() and mtk_drm_finish_page_flip().
> 
> Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>
> Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> Reviewed-by: Alexandre Mergnat <amergnat@...libre.com>
> Reviewed-by: Fei Shao <fshao@...omium.org>
> Tested-by: Fei Shao <fshao@...omium.org>

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

Cheers!