drm/i915/hdmi: stop caching has_hdmi_sink in struct intel_hdmi

Use the information stored in display info.
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5cdb4731260b062c0f0ad2f8b64195c9a57bcb76.1685437500.git.jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_display_types.h

@@ -1586,7 +1586,6 @@ struct intel_hdmi {
 		enum drm_dp_dual_mode_type type;
 		int max_tmds_clock;
 	} dp_dual_mode;
-	bool has_hdmi_sink;
 	struct intel_connector *attached_connector;
 	struct cec_notifier *cec_notifier;
 };

drivers/gpu/drm/i915/display/intel_hdmi.c

@@ -1790,7 +1790,9 @@ static int intel_hdmi_source_max_tmds_clock(struct intel_encoder *encoder)
 static bool intel_has_hdmi_sink(struct intel_hdmi *hdmi,
 				const struct drm_connector_state *conn_state)
 {
-	return hdmi->has_hdmi_sink &&
+	struct intel_connector *connector = hdmi->attached_connector;
+
+	return connector->base.display_info.is_hdmi &&
 		READ_ONCE(to_intel_digital_connector_state(conn_state)->force_audio) != HDMI_AUDIO_OFF_DVI;
 }
 
@@ -2385,8 +2387,6 @@ intel_hdmi_unset_edid(struct drm_connector *connector)
 {
 	struct intel_hdmi *intel_hdmi = intel_attached_hdmi(to_intel_connector(connector));
 
-	intel_hdmi->has_hdmi_sink = false;
-
 	intel_hdmi->dp_dual_mode.type = DRM_DP_DUAL_MODE_NONE;
 	intel_hdmi->dp_dual_mode.max_tmds_clock = 0;
 
@@ -2478,8 +2478,6 @@ intel_hdmi_set_edid(struct drm_connector *connector)
 	/* FIXME: Get rid of drm_edid_raw() */
 	edid = drm_edid_raw(drm_edid);
 	if (edid && edid->input & DRM_EDID_INPUT_DIGITAL) {
-		intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
-
 		intel_hdmi_dp_dual_mode_detect(connector);
 
 		connected = true;