[PATCH v3] drm/mediatek: check plane visibility in atomic_update

[Tomasz Figa]

On Mon, Jun 22, 2020 at 11:31:06PM +0800, Hsin-Yi Wang wrote:
> Disable the plane if it's not visible. Otherwise mtk_ovl_layer_config()
> would proceed with invalid plane and we may see vblank timeout.
> 
> Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
> Signed-off-by: Hsin-Yi Wang <hsinyi at chromium.org>
> Reviewed-by: Chun-Kuang Hu <chunkuang.hu at kernel.org>
> Change-Id: Id5341d60ddfffc88a38d9db0caa089b2d6a1d29c
> ---
> v3: Address comment
> v2: Add fixes tag
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_plane.c | 25 ++++++++++++++----------
>  1 file changed, 15 insertions(+), 10 deletions(-)
> 

+/- the Change-Id pointed out by Matthias:

Reviewed-by: Tomasz Figa <tfiga at chromium.org>

Best regards,
Tomasz