linux-kernel - [PATCH v5 9/9] drm/vc4: hdmi: use drm_atomic_helper_connector_hdmi_update

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Message-Id: <20241201-drm-bridge-hdmi-connector-v5-9-b5316e82f61a@linaro.org>
Date: Sun, 01 Dec 2024 02:44:13 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: 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>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
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 Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>
Cc: Jani Nikula <jani.nikula@...ux.intel.com>, 
 dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 linux-sound@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-samsung-soc@...r.kernel.org, linux-mediatek@...ts.infradead.org, 
 linux-rockchip@...ts.infradead.org
Subject: [PATCH v5 9/9] drm/vc4: hdmi: use
 drm_atomic_helper_connector_hdmi_update_edid()

Use the helper function to update the connector's information. This
makes sure that HDMI-related events are handled in a generic way.
Currently it is limited to the HDMI state reporting to the sound system.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index d0a9aff7ad43016647493263c00d593296a1e3ad..d83f587ab69f4b8f7d5c37a00777f11da8301bc1 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -401,13 +401,16 @@ static void vc4_hdmi_handle_hotplug(struct vc4_hdmi *vc4_hdmi,
 	 */
 
 	if (status == connector_status_disconnected) {
+		drm_atomic_helper_connector_hdmi_update_edid(connector, NULL);
 		cec_phys_addr_invalidate(vc4_hdmi->cec_adap);
 		return;
 	}
 
 	drm_edid = drm_edid_read_ddc(connector, vc4_hdmi->ddc);
 
-	drm_edid_connector_update(connector, drm_edid);
+	// TODO: use drm_atomic_helper_connector_hdmi_update() once it gains
+	// CEC support
+	drm_atomic_helper_connector_hdmi_update_edid(connector, drm_edid);
 	cec_s_phys_addr(vc4_hdmi->cec_adap,
 			connector->display_info.source_physical_address, false);
 
@@ -487,7 +490,9 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
 	 */
 
 	drm_edid = drm_edid_read_ddc(connector, vc4_hdmi->ddc);
-	drm_edid_connector_update(connector, drm_edid);
+	// TODO: use drm_atomic_helper_connector_hdmi_update() once it gains
+	// CEC support
+	drm_atomic_helper_connector_hdmi_update_edid(connector, drm_edid);
 	cec_s_phys_addr(vc4_hdmi->cec_adap,
 			connector->display_info.source_physical_address, false);
 	if (!drm_edid)

-- 
2.39.5