[PATCH v6 8/8] drm: exynos: exynos_hdmi: use cec_notifier_conn_(un)register

[Dariusz Marcinkiewicz]

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:
        - removed unnecessary call to invalidate phys address before
        deregistering the notifier,
        - use cec_notifier_phys_addr_invalidate instead of setting
        invalid address on a notifier.

Signed-off-by: Dariusz Marcinkiewicz <dar...@google.com>
Tested-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
---
 drivers/gpu/drm/exynos/exynos_hdmi.c | 31 ++++++++++++++++------------
 1 file changed, 18 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c 
b/drivers/gpu/drm/exynos/exynos_hdmi.c
index bc1565f1822ab..d532b468d9af5 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -852,6 +852,10 @@ static enum drm_connector_status hdmi_detect(struct 
drm_connector *connector,
 
 static void hdmi_connector_destroy(struct drm_connector *connector)
 {
+       struct hdmi_context *hdata = connector_to_hdmi(connector);
+
+       cec_notifier_conn_unregister(hdata->notifier);
+
        drm_connector_unregister(connector);
        drm_connector_cleanup(connector);
 }
@@ -935,6 +939,7 @@ static int hdmi_create_connector(struct drm_encoder 
*encoder)
 {
        struct hdmi_context *hdata = encoder_to_hdmi(encoder);
        struct drm_connector *connector = &hdata->connector;
+       struct cec_connector_info conn_info;
        int ret;
 
        connector->interlace_allowed = true;
@@ -957,6 +962,15 @@ static int hdmi_create_connector(struct drm_encoder 
*encoder)
                        DRM_DEV_ERROR(hdata->dev, "Failed to attach bridge\n");
        }
 
+       cec_fill_conn_info_from_drm(&conn_info, connector);
+
+       hdata->notifier = cec_notifier_conn_register(hdata->dev, NULL,
+                                                    &conn_info);
+       if (hdata->notifier == NULL) {
+               ret = -ENOMEM;
+               DRM_DEV_ERROR(hdata->dev, "Failed to allocate CEC notifier\n");
+       }
+
        return ret;
 }
 
@@ -1528,8 +1542,8 @@ static void hdmi_disable(struct drm_encoder *encoder)
                 */
                mutex_unlock(&hdata->mutex);
                cancel_delayed_work(&hdata->hotplug_work);
-               cec_notifier_set_phys_addr(hdata->notifier,
-                                          CEC_PHYS_ADDR_INVALID);
+               if (hdata->notifier)
+                       cec_notifier_phys_addr_invalidate(hdata->notifier);
                return;
        }
 
@@ -2006,12 +2020,6 @@ static int hdmi_probe(struct platform_device *pdev)
                }
        }
 
-       hdata->notifier = cec_notifier_get(&pdev->dev);
-       if (hdata->notifier == NULL) {
-               ret = -ENOMEM;
-               goto err_hdmiphy;
-       }
-
        pm_runtime_enable(dev);
 
        audio_infoframe = &hdata->audio.infoframe;
@@ -2023,7 +2031,7 @@ static int hdmi_probe(struct platform_device *pdev)
 
        ret = hdmi_register_audio_device(hdata);
        if (ret)
-               goto err_notifier_put;
+               goto err_runtime_disable;
 
        ret = component_add(&pdev->dev, &hdmi_component_ops);
        if (ret)
@@ -2034,8 +2042,7 @@ static int hdmi_probe(struct platform_device *pdev)
 err_unregister_audio:
        platform_device_unregister(hdata->audio.pdev);
 
-err_notifier_put:
-       cec_notifier_put(hdata->notifier);
+err_runtime_disable:
        pm_runtime_disable(dev);
 
 err_hdmiphy:
@@ -2054,12 +2061,10 @@ static int hdmi_remove(struct platform_device *pdev)
        struct hdmi_context *hdata = platform_get_drvdata(pdev);
 
        cancel_delayed_work_sync(&hdata->hotplug_work);
-       cec_notifier_set_phys_addr(hdata->notifier, CEC_PHYS_ADDR_INVALID);
 
        component_del(&pdev->dev, &hdmi_component_ops);
        platform_device_unregister(hdata->audio.pdev);
 
-       cec_notifier_put(hdata->notifier);
        pm_runtime_disable(&pdev->dev);
 
        if (!IS_ERR(hdata->reg_hdmi_en))
-- 
2.23.0.rc1.153.gdeed80330f-goog