drm/hisilicon: Fix ADE vblank on/off handling

Vblank turn on should be called in crtc's enable callback.
And turn off called in crtc's disable callback.

Thanks to Daniel Vetter, this bug is reported by him.

Reported-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
index 16834f4b91564a11ad78c7ad706b21434baae0d5..c3707d47cd89762c592f7d4f644c004bea27ac74 100644 (file)
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
@@ -487,6 +487,7 @@ static void ade_crtc_enable(struct drm_crtc *crtc)
        ade_set_medianoc_qos(acrtc);
        ade_display_enable(acrtc);
        ade_dump_regs(ctx->base);
+       drm_crtc_vblank_on(crtc);
        acrtc->enable = true;
 }
 
@@ -498,6 +499,7 @@ static void ade_crtc_disable(struct drm_crtc *crtc)
        if (!acrtc->enable)
                return;
 
+       drm_crtc_vblank_off(crtc);
        ade_power_down(ctx);
        acrtc->enable = false;
 }