linux-kernel - Re: [PATCH] drm/mediatek: dsi: Add atomic {destroy, duplicate}

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Date:   Mon, 25 Jul 2022 14:46:39 +0800
From:   Chen-Yu Tsai <wenst@...omium.org>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     chunkuang.hu@...nel.org, jitao.shi@...iatek.com, airlied@...ux.ie,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        rex-bc.chen@...iatek.com, linux-mediatek@...ts.infradead.org,
        matthias.bgg@...il.com, linux-arm-kernel@...ts.infradead.org,
        xinlei.lee@...iatek.com
Subject: Re: [PATCH] drm/mediatek: dsi: Add atomic {destroy, duplicate}_state,
 reset callbacks

On Fri, Jul 22, 2022 at 1:27 AM AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com> wrote:
>
> Add callbacks for atomic_destroy_state, atomic_duplicate_state and
> atomic_reset to restore functionality of the DSI driver: this solves
> vblank timeouts when another bridge is present in the chain.
>
> Tested bridge chain: DSI <=> ANX7625 => aux-bus panel
>
> Fixes: 7f6335c6a258 ("drm/mediatek: Modify dsi funcs to atomic operations")
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

Tested-by: Chen-Yu Tsai <wenst@...omium.org>

on top of next-20220722 with additional DTSI changes for display related
device nodes [1] and modification to mt8192-asurada.dtsi to enable internal
display.

[1] https://lore.kernel.org/linux-mediatek/20220712114046.15574-1-allen-kh.cheng@mediatek.com/