drm/msm/sde: add debugfs entry for danger and safe status

Add debugfs entry for current danger and safe status of each pipe
and current overall status for debugging purposes.

Change-Id: I3e784d0218df40c184a431409c864a3208a90b45
Signed-off-by: Alan Kwong <akwong@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/sde/sde_kms.h b/drivers/gpu/drm/msm/sde/sde_kms.h
index 2a17ccb..60685e5 100644
--- a/drivers/gpu/drm/msm/sde/sde_kms.h
+++ b/drivers/gpu/drm/msm/sde/sde_kms.h
@@ -121,6 +121,7 @@
 	/* directory entry for debugfs */
 	void *debugfs_root;
 	struct dentry *debugfs_debug;
+	struct dentry *debugfs_danger;
 
 	/* io/register spaces: */
 	void __iomem *mmio, *vbif[VBIF_MAX];
@@ -143,6 +144,8 @@
 	void **dsi_displays;
 	int wb_display_count;
 	void **wb_displays;
+
+	bool has_danger_ctrl;
 };
 
 struct vsync_info {