drm: sti: use cec_notifier_conn_(un)register

Use the new cec_notifier_conn_(un)register() functions to
(un)register the notifier for the HDMI connector, and fill
in the cec_connector_info.

Changes since v2:
	Don't invalidate physical address before unregistering the
	notifier.
Signed-off-by: Dariusz Marcinkiewicz <darekm@google.com>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190814104520.6001-7-darekm@google.com

drivers/gpu/drm/sti/sti_hdmi.c

@@ -1257,6 +1257,7 @@ static int sti_hdmi_bind(struct device *dev, struct device *master, void *data)
 	struct drm_device *drm_dev = data;
 	struct drm_encoder *encoder;
 	struct sti_hdmi_connector *connector;
+	struct cec_connector_info conn_info;
 	struct drm_connector *drm_connector;
 	struct drm_bridge *bridge;
 	int err;
@@ -1319,6 +1320,14 @@ static int sti_hdmi_bind(struct device *dev, struct device *master, void *data)
 		goto err_sysfs;
 	}
 
+	cec_fill_conn_info_from_drm(&conn_info, drm_connector);
+	hdmi->notifier = cec_notifier_conn_register(&hdmi->dev, NULL,
+						    &conn_info);
+	if (!hdmi->notifier) {
+		hdmi->drm_connector = NULL;
+		return -ENOMEM;
+	}
+
 	/* Enable default interrupts */
 	hdmi_write(hdmi, HDMI_DEFAULT_INT, HDMI_INT_EN);
 
@@ -1332,6 +1341,9 @@ static int sti_hdmi_bind(struct device *dev, struct device *master, void *data)
 static void sti_hdmi_unbind(struct device *dev,
 		struct device *master, void *data)
 {
+	struct sti_hdmi *hdmi = dev_get_drvdata(dev);
+
+	cec_notifier_conn_unregister(hdmi->notifier);
 }
 
 static const struct component_ops sti_hdmi_ops = {
@@ -1437,10 +1449,6 @@ static int sti_hdmi_probe(struct platform_device *pdev)
 		goto release_adapter;
 	}
 
-	hdmi->notifier = cec_notifier_get(&pdev->dev);
-	if (!hdmi->notifier)
-		goto release_adapter;
-
 	hdmi->reset = devm_reset_control_get(dev, "hdmi");
 	/* Take hdmi out of reset */
 	if (!IS_ERR(hdmi->reset))
@@ -1460,14 +1468,11 @@ static int sti_hdmi_remove(struct platform_device *pdev)
 {
 	struct sti_hdmi *hdmi = dev_get_drvdata(&pdev->dev);
 
-	cec_notifier_set_phys_addr(hdmi->notifier, CEC_PHYS_ADDR_INVALID);
-
 	i2c_put_adapter(hdmi->ddc_adapt);
 	if (hdmi->audio_pdev)
 		platform_device_unregister(hdmi->audio_pdev);
 	component_del(&pdev->dev, &sti_hdmi_ops);
 
-	cec_notifier_put(hdmi->notifier);
 	return 0;
 }