drm/i915: Move cached EDID to intel_connector

Move the cached EDID from intel_dp and intel_lvds_connector to
intel_connector. Unify cached EDID handling for LVDS and eDP, in
preparation for adding more generic EDID caching later.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 7fbb8ed..26d70ea 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -186,6 +186,9 @@
 
 	/* Panel info for eDP and LVDS */
 	struct intel_panel panel;
+
+	/* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
+	struct edid *edid;
 };
 
 struct intel_crtc {
@@ -367,8 +370,6 @@
 	int backlight_off_delay;
 	struct delayed_work panel_vdd_work;
 	bool want_panel_vdd;
-	struct edid *edid; /* cached EDID for eDP */
-	int edid_mode_count;
 	struct intel_connector *attached_connector;
 };