[PATCH v4 4/7] drm/mediatek: disable all the planes in atomic_disable

[CK Hu]

On Thu, 2019-12-05 at 17:27 +0800, Bibby Hsieh wrote:
> Under shadow register case, we do not disable all the plane before
> disable all the hardwares. Fix it.

Except the 'Fixes' tag, I could add it,

Reviewed-by: CK Hu <ck.hu at mediatek.com>

> 
> Signed-off-by: Bibby Hsieh <bibby.hsieh at mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> index e887a6877bcd..e40c8cf7d74f 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> @@ -550,6 +550,7 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc,
>  	}
>  	mtk_crtc->pending_planes = true;
>  
> +	mtk_drm_crtc_hw_config(mtk_crtc);
>  	/* Wait for planes to be disabled */
>  	drm_crtc_wait_one_vblank(crtc);
>