of: unittest: unflatten device tree on UML when testing

UML supports enabling OF, and is useful for running the device tree
tests, so add support for unflattening device tree blobs so we can
actually use it.

Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 872956500c27..66037511f2d7 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -2521,6 +2521,10 @@ static int __init of_unittest(void)
         int res;
 
         /* adding data for unittest */
+
+        if (IS_ENABLED(CONFIG_UML))
+                unittest_unflatten_overlay_base();
+
         res = unittest_data_add();
         if (res)
                 return res;