[PATCH v22 17/24] drm/mediatek: add display merge async reset control

[Rex-BC Chen]

On Thu, 2022-05-26 at 19:02 +0800, Nancy.Lin wrote:
> Add merge async reset control in mtk_merge_stop. Async hw doesn't do
> self
> reset on each sof signal(start of frame), so need to reset the async
> to
> clear the hw status for the next merge start.
> 
> Signed-off-by: Nancy.Lin <nancy.lin at mediatek.com>
> Reviewed-by: CK Hu <ck.hu at mediatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno at collabora.com>
> Tested-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno at collabora.com>
> ---
> 

[Bo-Chen: Test on MT8195 Tomato Chromebook with external display]
Tested-by: Bo-Chen Chen <rex-bc.chen at mediatek.com>