Re: [PATCH] drm/mediatek: Add spinlock for setting vblank event in atomic_begin

Subject: Re: [PATCH] drm/mediatek: Add spinlock for setting vblank event in atomic_begin
From: Alexandre Mergnat <amergnat@xxxxxxxxxxxx>
Date: Mon, 4 Sep 2023 14:09:32 +0200
Cc: Singo Chang <singo.chang@xxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>, Project_Global_Chrome_Upstream_Group@xxxxxxxxxxxx, Jason-ch Chen <jason-ch.chen@xxxxxxxxxxxx>, Nancy Lin <nancy.lin@xxxxxxxxxxxx>, Johnson Wang <johnson.wang@xxxxxxxxxxxx>, dri-devel@xxxxxxxxxxxxxxxxxxxxx, Shawn Sung <shawn.sung@xxxxxxxxxxxx>, linux-mediatek@xxxxxxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
In-reply-to: <20230822132646.9811-1-jason-jh.lin@mediatek.com>
References: <20230822132646.9811-1-jason-jh.lin@mediatek.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0

Reviewed-by: Alexandre Mergnat <amergnat@xxxxxxxxxxxx>

On 22/08/2023 15:26, Jason-JH.Lin wrote:

Add spinlock protection to avoid race condition on vblank event
between mtk_drm_crtc_atomic_begin() and mtk_drm_finish_page_flip().


--
Regards,
Alexandre

References:
- [PATCH] drm/mediatek: Add spinlock for setting vblank event in atomic_begin
  - From: Jason-JH.Lin