提交 a4744786 编写于 作者: L Lucas Stach 提交者: Philipp Zabel

drm/imx: fix crtc vblank state regression

The atomic conversion lost the notification to let the DRM core
know about the current state of the CRTC vblank interrupts. This
regressed the ability of the core to reject page flip attempts
on currently disabled CRTCs. Add back the notifications.
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
上级 c6c1f9bc
......@@ -76,6 +76,8 @@ static void ipu_crtc_disable(struct drm_crtc *crtc)
crtc->state->event = NULL;
}
spin_unlock_irq(&crtc->dev->event_lock);
drm_crtc_vblank_off(crtc);
}
static void imx_drm_crtc_reset(struct drm_crtc *crtc)
......@@ -175,6 +177,8 @@ static int ipu_crtc_atomic_check(struct drm_crtc *crtc,
static void ipu_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
drm_crtc_vblank_on(crtc);
spin_lock_irq(&crtc->dev->event_lock);
if (crtc->state->event) {
WARN_ON(drm_crtc_vblank_get(crtc));
......
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