drm/tilcdc: disable crtc on unload

Disable crtc on unload. Call tilcdc_crtc_dpms() with DRM_MODE_DPMS_OFF
in the beginning of unload function.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
[Added description to the patch]
Signed-off-by: Jyri Sarha <jsarha@ti.com>
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 47f0e02..e1f6979 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -112,6 +112,8 @@
 {
 	struct tilcdc_drm_private *priv = dev->dev_private;
 
+	tilcdc_crtc_dpms(priv->crtc, DRM_MODE_DPMS_OFF);
+
 	tilcdc_remove_external_encoders(dev);
 
 	drm_fbdev_cma_fini(priv->fbdev);