drm/i915: Clean up early plane debugs

Print the plane hw state readout results in the common format
we already use for pipes and encoders. Also print some clearer
debug messages when we disable planes during the early phases
of state readout/sanitization.

v2: Rebase
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181003145052.4633-1-ville.syrjala@linux.intel.comReviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_display.c

@@ -2768,10 +2768,6 @@ intel_set_plane_visible(struct intel_crtc_state *crtc_state,
 		crtc_state->base.plane_mask |= drm_plane_mask(&plane->base);
 	else
 		crtc_state->base.plane_mask &= ~drm_plane_mask(&plane->base);
-
-	DRM_DEBUG_KMS("%s active planes 0x%x\n",
-		      crtc_state->base.crtc->name,
-		      crtc_state->active_planes);
 }
 
 static void fixup_active_planes(struct intel_crtc_state *crtc_state)
@@ -2799,6 +2795,10 @@ static void intel_plane_disable_noatomic(struct intel_crtc *crtc,
 	struct intel_plane_state *plane_state =
 		to_intel_plane_state(plane->base.state);
 
+	DRM_DEBUG_KMS("Disabling [PLANE:%d:%s] on [CRTC:%d:%s]\n",
+		      plane->base.base.id, plane->base.name,
+		      crtc->base.base.id, crtc->base.name);
+
 	intel_set_plane_visible(crtc_state, plane_state, false);
 	fixup_active_planes(crtc_state);
 
@@ -15523,8 +15523,8 @@ intel_sanitize_plane_mapping(struct drm_i915_private *dev_priv)
 		if (pipe == crtc->pipe)
 			continue;
 
-		DRM_DEBUG_KMS("%s attached to the wrong pipe, disabling plane\n",
-			      plane->base.name);
+		DRM_DEBUG_KMS("[PLANE:%d:%s] attached to the wrong pipe, disabling plane\n",
+			      plane->base.base.id, plane->base.name);
 
 		plane_crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
 		intel_plane_disable_noatomic(plane_crtc, plane);
@@ -15713,6 +15713,10 @@ static void readout_plane_state(struct drm_i915_private *dev_priv)
 		crtc_state = to_intel_crtc_state(crtc->base.state);
 
 		intel_set_plane_visible(crtc_state, plane_state, visible);
+
+		DRM_DEBUG_KMS("[PLANE:%d:%s] hw state readout: %s, pipe %c\n",
+			      plane->base.base.id, plane->base.name,
+			      enableddisabled(visible), pipe_name(pipe));
 	}
 
 	for_each_intel_crtc(&dev_priv->drm, crtc) {