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References: <20220721172727.14624-1-angelogioacchino.delregno@collabora.com>
In-Reply-To: <20220721172727.14624-1-angelogioacchino.delregno@collabora.com>
From:   Chen-Yu Tsai <wenst@chromium.org>
Date:   Mon, 25 Jul 2022 14:46:39 +0800
Message-ID: <CAGXv+5GyOjMxsmP24e-oUMJxhpV_UO_=c6RjCPf60MKn+SNiYA@mail.gmail.com>
Subject: Re: [PATCH] drm/mediatek: dsi: Add atomic {destroy, duplicate}_state,
 reset callbacks
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
Cc:     chunkuang.hu@kernel.org, jitao.shi@mediatek.com, airlied@linux.ie,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        rex-bc.chen@mediatek.com, linux-mediatek@lists.infradead.org,
        matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org,
        xinlei.lee@mediatek.com
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On Fri, Jul 22, 2022 at 1:27 AM AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.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@collabora.com>

Tested-by: Chen-Yu Tsai <wenst@chromium.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/