iommu/omap: Fix debugfs_create_*() usage

When exposing data access through debugfs, the correct
debugfs_create_*() functions must be used, depending on data type.

Remove all casts from data pointers passed to debugfs_create_*()
functions, as such casts prevent the compiler from flagging bugs.

omap_iommu.nr_tlb_entries is "int", hence casting to "u8 *" exposes only
a part of it.  Fix this by using debugfs_create_u32() instead.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

drivers/iommu/omap-iommu-debug.c

@@ -274,8 +274,8 @@ void omap_iommu_debugfs_add(struct omap_iommu *obj)
 	if (!obj->debug_dir)
 		return;
 
-	d = debugfs_create_u8("nr_tlb_entries", 0400, obj->debug_dir,
-			      (u8 *)&obj->nr_tlb_entries);
+	d = debugfs_create_u32("nr_tlb_entries", 0400, obj->debug_dir,
+			       &obj->nr_tlb_entries);
 	if (!d)
 		return;