dw-hdmi-cec: use cec_notifier_cec_adap_(un)register

Use the new cec_notifier_cec_adap_(un)register() functions to
(un)register the notifier for the CEC adapter.

Also adds CEC_CAP_CONNECTOR_INFO capability to the adapter.

Changes since v3:
	- add CEC_CAP_CONNECTOR_INFO to cec_allocate_adapter,
	- replace CEC_CAP_LOG_ADDRS | CEC_CAP_TRANSMIT |
	CEC_CAP_RC | CEC_CAP_PASSTHROUGH with CEC_CAP_DEFAULTS.
Signed-off-by: Dariusz Marcinkiewicz <darekm@google.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Tested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190814104520.6001-4-darekm@google.com

drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c

@@ -256,8 +256,8 @@ static int dw_hdmi_cec_probe(struct platform_device *pdev)
 	dw_hdmi_write(cec, 0, HDMI_CEC_POLARITY);
 
 	cec->adap = cec_allocate_adapter(&dw_hdmi_cec_ops, cec, "dw_hdmi",
-					 CEC_CAP_LOG_ADDRS | CEC_CAP_TRANSMIT |
-					 CEC_CAP_RC | CEC_CAP_PASSTHROUGH,
+					 CEC_CAP_DEFAULTS |
+					 CEC_CAP_CONNECTOR_INFO,
 					 CEC_MAX_LOG_ADDRS);
 	if (IS_ERR(cec->adap))
 		return PTR_ERR(cec->adap);
@@ -278,13 +278,14 @@ static int dw_hdmi_cec_probe(struct platform_device *pdev)
 	if (ret < 0)
 		return ret;
 
-	cec->notify = cec_notifier_get(pdev->dev.parent);
+	cec->notify = cec_notifier_cec_adap_register(pdev->dev.parent,
+						     NULL, cec->adap);
 	if (!cec->notify)
 		return -ENOMEM;
 
 	ret = cec_register_adapter(cec->adap, pdev->dev.parent);
 	if (ret < 0) {
-		cec_notifier_put(cec->notify);
+		cec_notifier_cec_adap_unregister(cec->notify);
 		return ret;
 	}
 
@@ -294,8 +295,6 @@ static int dw_hdmi_cec_probe(struct platform_device *pdev)
 	 */
 	devm_remove_action(&pdev->dev, dw_hdmi_cec_del, cec);
 
-	cec_register_cec_notifier(cec->adap, cec->notify);
-
 	return 0;
 }
 
@@ -303,8 +302,8 @@ static int dw_hdmi_cec_remove(struct platform_device *pdev)
 {
 	struct dw_hdmi_cec *cec = platform_get_drvdata(pdev);
 
+	cec_notifier_cec_adap_unregister(cec->notify);
 	cec_unregister_adapter(cec->adap);
-	cec_notifier_put(cec->notify);
 
 	return 0;
 }