linux-kernel - [PATCH v2 08/10] drm: bridge: dw_hdmi: Remove cec_notifier

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Message-ID: <20240908132823.3308029-9-jonas@kwiboo.se>
Date: Sun,  8 Sep 2024 13:28:10 +0000
From: Jonas Karlman <jonas@...boo.se>
To: Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>,
	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>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.com>
Cc: Christian Hewitt <christianshewitt@...il.com>,
	Diederik de Haas <didi.debian@...ow.org>,
	Christopher Obbard <chris.obbard@...labora.com>,
	dri-devel@...ts.freedesktop.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 08/10] drm: bridge: dw_hdmi: Remove cec_notifier_mutex

With CEC phys addr invalidation moved away from the irq handler there is
no longer a need for cec_notifier_mutex, remove it.

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>
Signed-off-by: Jonas Karlman <jonas@...boo.se>
---
v2: Collect r-b tag
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 8ec97babd334..c19307120909 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -186,7 +186,6 @@ struct dw_hdmi {
 	void (*enable_audio)(struct dw_hdmi *hdmi);
 	void (*disable_audio)(struct dw_hdmi *hdmi);
 
-	struct mutex cec_notifier_mutex;
 	struct cec_notifier *cec_notifier;
 
 	hdmi_codec_plugged_cb plugged_cb;
@@ -2458,11 +2457,8 @@ dw_hdmi_connector_detect(struct drm_connector *connector, bool force)
 
 	status = dw_hdmi_detect(hdmi);
 
-	if (status == connector_status_disconnected) {
-		mutex_lock(&hdmi->cec_notifier_mutex);
+	if (status == connector_status_disconnected)
 		cec_notifier_phys_addr_invalidate(hdmi->cec_notifier);
-		mutex_unlock(&hdmi->cec_notifier_mutex);
-	}
 
 	return status;
 }
@@ -2576,9 +2572,7 @@ static int dw_hdmi_connector_create(struct dw_hdmi *hdmi)
 	if (!notifier)
 		return -ENOMEM;
 
-	mutex_lock(&hdmi->cec_notifier_mutex);
 	hdmi->cec_notifier = notifier;
-	mutex_unlock(&hdmi->cec_notifier_mutex);
 
 	return 0;
 }
@@ -2876,10 +2870,8 @@ static void dw_hdmi_bridge_detach(struct drm_bridge *bridge)
 {
 	struct dw_hdmi *hdmi = bridge->driver_private;
 
-	mutex_lock(&hdmi->cec_notifier_mutex);
 	cec_notifier_conn_unregister(hdmi->cec_notifier);
 	hdmi->cec_notifier = NULL;
-	mutex_unlock(&hdmi->cec_notifier_mutex);
 }
 
 static enum drm_mode_status
@@ -3304,7 +3296,6 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,
 
 	mutex_init(&hdmi->mutex);
 	mutex_init(&hdmi->audio_mutex);
-	mutex_init(&hdmi->cec_notifier_mutex);
 	spin_lock_init(&hdmi->audio_lock);
 
 	ret = dw_hdmi_parse_dt(hdmi);
-- 
2.46.0