[PATCH v2 21/21] drm/tilcdc: Initialize crtc->port

[Jyri Sarha]

Initialize port device node pointer in the tilcdc crtc. Fixes "Falling
back to first CRTC" warning from tda998x driver.

Signed-off-by: Jyri Sarha <jsarha at ti.com>
---
 drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index e886277..cfd3fd1 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -124,6 +124,7 @@ static void tilcdc_crtc_destroy(struct drm_crtc *crtc)
 
 	tilcdc_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
 
+	of_node_put(crtc->port);
 	drm_crtc_cleanup(crtc);
 	drm_flip_work_cleanup(&tilcdc_crtc->unref_work);
 
@@ -768,6 +769,7 @@ void tilcdc_crtc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file)
 
 struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev)
 {
+	struct tilcdc_drm_private *priv = dev->dev_private;
 	struct tilcdc_crtc *tilcdc_crtc;
 	struct drm_crtc *crtc;
 	int ret;
@@ -794,6 +796,15 @@ struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev)
 
 	drm_crtc_helper_add(crtc, &tilcdc_crtc_helper_funcs);
 
+	if (priv->is_componentized) {
+		crtc->port =
+			of_get_child_by_name(dev->dev->of_node, "port");
+		if (!crtc->port) {
+			dev_warn(dev->dev, "no port node found in %s\n",
+				 dev->dev->of_node->full_name);
+		}
+	}
+
 	return crtc;
 
 fail:
-- 
1.9.1