drm/msm: Convert to CRTC VBLANK callbacks

VBLANK callbacks in struct drm_driver are deprecated in favor of
their equivalents in struct drm_crtc_funcs. Convert msm over.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Yannick Fertré <yannick.fertre@st.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200123135943.24140-14-tzimmermann@suse.de
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index c84f0a8..c5e0441 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -660,8 +660,10 @@ static void msm_irq_uninstall(struct drm_device *dev)
 	kms->funcs->irq_uninstall(kms);
 }
 
-static int msm_enable_vblank(struct drm_device *dev, unsigned int pipe)
+int msm_crtc_enable_vblank(struct drm_crtc *crtc)
 {
+	struct drm_device *dev = crtc->dev;
+	unsigned int pipe = crtc->index;
 	struct msm_drm_private *priv = dev->dev_private;
 	struct msm_kms *kms = priv->kms;
 	if (!kms)
@@ -670,8 +672,10 @@ static int msm_enable_vblank(struct drm_device *dev, unsigned int pipe)
 	return vblank_ctrl_queue_work(priv, pipe, true);
 }
 
-static void msm_disable_vblank(struct drm_device *dev, unsigned int pipe)
+void msm_crtc_disable_vblank(struct drm_crtc *crtc)
 {
+	struct drm_device *dev = crtc->dev;
+	unsigned int pipe = crtc->index;
 	struct msm_drm_private *priv = dev->dev_private;
 	struct msm_kms *kms = priv->kms;
 	if (!kms)
@@ -996,8 +1000,6 @@ static struct drm_driver msm_driver = {
 	.irq_preinstall     = msm_irq_preinstall,
 	.irq_postinstall    = msm_irq_postinstall,
 	.irq_uninstall      = msm_irq_uninstall,
-	.enable_vblank      = msm_enable_vblank,
-	.disable_vblank     = msm_disable_vblank,
 	.gem_free_object_unlocked = msm_gem_free_object,
 	.gem_vm_ops         = &vm_ops,
 	.dumb_create        = msm_gem_dumb_create,