linux-kernel - [PATCH v5 04/11] drm/connector: unregister CEC data

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Message-Id: <20250407-drm-hdmi-connector-cec-v5-4-04809b10d206@oss.qualcomm.com>
Date: Mon, 07 Apr 2025 18:11:01 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Maíra Canal <mcanal@...lia.com>,
        Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Robert Foss <rfoss@...nel.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Dmitry Baryshkov <lumag@...nel.org>
Subject: [PATCH v5 04/11] drm/connector: unregister CEC data

In order to make sure that CEC adapters or notifiers are unregistered
and CEC-related data is properly destroyed make drm_connector_cleanup()
call CEC's unregister() callback.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
---
 drivers/gpu/drm/drm_connector.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index ba08fbd973829e49ea977251c4f0fb6d96ade631..ae9c02ef9ab102db03c2824683ece37cfbcd3300 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -743,6 +743,13 @@ void drm_connector_cec_phys_addr_set(struct drm_connector *connector)
 }
 EXPORT_SYMBOL(drm_connector_cec_phys_addr_set);
 
+static void drm_connector_cec_unregister(struct drm_connector *connector)
+{
+	if (connector->cec.funcs &&
+	    connector->cec.funcs->unregister)
+		connector->cec.funcs->unregister(connector);
+}
+
 /**
  * drm_connector_cleanup - cleans up an initialised connector
  * @connector: connector to cleanup
@@ -763,6 +770,8 @@ void drm_connector_cleanup(struct drm_connector *connector)
 
 	platform_device_unregister(connector->hdmi_audio.codec_pdev);
 
+	drm_connector_cec_unregister(connector);
+
 	if (connector->privacy_screen) {
 		drm_privacy_screen_put(connector->privacy_screen);
 		connector->privacy_screen = NULL;

-- 
2.39.5