[PATCH v5 7/9] drm: tegra: use cec_notifier_conn_(un)register

[Dariusz Marcinkiewicz <darekm@google.com>]

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 v4:
	- only create a CEC notifier for HDMI connectors

Signed-off-by: Dariusz Marcinkiewicz <darekm@google.com>
---
 drivers/gpu/drm/tegra/output.c | 28 +++++++++++++++++++++-------
 1 file changed, 21 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c
index 9c2b9dad55c30..13153b93626fd 100644
--- a/drivers/gpu/drm/tegra/output.c
+++ b/drivers/gpu/drm/tegra/output.c
@@ -80,6 +80,11 @@ tegra_output_connector_detect(struct drm_connector *connector, bool force)
 
 void tegra_output_connector_destroy(struct drm_connector *connector)
 {
+	struct tegra_output *output = connector_to_output(connector);
+
+	if (output->cec)
+		cec_notifier_conn_unregister(output->cec);
+
 	drm_connector_unregister(connector);
 	drm_connector_cleanup(connector);
 }
@@ -174,18 +179,11 @@ int tegra_output_probe(struct tegra_output *output)
 		disable_irq(output->hpd_irq);
 	}
 
-	output->cec = cec_notifier_get(output->dev);
-	if (!output->cec)
-		return -ENOMEM;
-
 	return 0;
 }
 
 void tegra_output_remove(struct tegra_output *output)
 {
-	if (output->cec)
-		cec_notifier_put(output->cec);
-
 	if (gpio_is_valid(output->hpd_gpio)) {
 		free_irq(output->hpd_irq, output);
 		gpio_free(output->hpd_gpio);
@@ -197,6 +195,7 @@ void tegra_output_remove(struct tegra_output *output)
 
 int tegra_output_init(struct drm_device *drm, struct tegra_output *output)
 {
+	int connector_type;
 	int err;
 
 	if (output->panel) {
@@ -212,6 +211,21 @@ int tegra_output_init(struct drm_device *drm, struct tegra_output *output)
 	if (gpio_is_valid(output->hpd_gpio))
 		enable_irq(output->hpd_irq);
 
+	connector_type = output->connector.connector_type;
+	/*
+	 * Create a CEC notifier for HDMI connector.
+	 */
+	if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
+	    connector_type == DRM_MODE_CONNECTOR_HDMIB) {
+		struct cec_connector_info conn_info;
+
+		cec_fill_conn_info_from_drm(&conn_info, &output->connector);
+		output->cec = cec_notifier_conn_register(output->dev, NULL,
+							 &conn_info);
+		if (!output->cec)
+			return -ENOMEM;
+	}
+
 	return 0;
 }
 
-- 
2.22.0.770.g0f2c4a37fd-goog