drm/vc4: hdmi: use drm_atomic_helper_connector_hdmi_hotplug()

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.

Acked-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-10-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Author: lumag

drivers/gpu/drm/vc4/vc4_hdmi.c

@@ -384,7 +384,6 @@ static void vc4_hdmi_handle_hotplug(struct vc4_hdmi *vc4_hdmi,
 				    enum drm_connector_status status)
 {
 	struct drm_connector *connector = &vc4_hdmi->connector;
-	const struct drm_edid *drm_edid;
 	int ret;
 
 	/*
@@ -406,17 +405,14 @@ static void vc4_hdmi_handle_hotplug(struct vc4_hdmi *vc4_hdmi,
 		return;
 	}
 
-	drm_edid = drm_edid_read_ddc(connector, vc4_hdmi->ddc);
+	drm_atomic_helper_connector_hdmi_hotplug(connector, status);
 
-	drm_edid_connector_update(connector, drm_edid);
 	cec_s_phys_addr(vc4_hdmi->cec_adap,
 			connector->display_info.source_physical_address, false);
 
-	if (!drm_edid)
+	if (status != connector_status_connected)
 		return;
 
-	drm_edid_free(drm_edid);
-
 	for (;;) {
 		ret = vc4_hdmi_reset_link(connector, ctx);
 		if (ret == -EDEADLK) {
@@ -550,6 +546,7 @@ static void vc4_hdmi_connector_reset(struct drm_connector *connector)
 }
 
 static const struct drm_connector_funcs vc4_hdmi_connector_funcs = {
+	.force = drm_atomic_helper_connector_hdmi_force,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.reset = vc4_hdmi_connector_reset,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,