mkdtboimg: Allow specifying full path for dtb

* Some vendors /MTK/ autogenerate the CFG at runtime and
  instead of using a relative path to dtbdir they use an absolute path
  -> Fix these cases by skipping recursive search

Change-Id: I82bcba8d9f769602b59a847fa27b1ddc947a6544

1 files changed, 5 insertions, 4 deletions

diff --git a/utils/src/mkdtboimg.py b/utils/src/mkdtboimg.py
index 056fb11..136543f 100755
--- a/utils/src/mkdtboimg.py
+++ b/utils/src/mkdtboimg.py
@@ -897,10 +897,11 @@ def create_dtbo_image_from_config(fout, argv):
     params['version'] = version
     dt_entries = []
     for dt_arg in dt_args:
-        filepath = None
-        for root, dirnames, filenames in os.walk(args.dtbdir):
-            for filename in fnmatch.filter(filenames, dt_arg['filename']):
-                filepath = os.path.join(root, filename)
+        filepath = dt_arg['filename']
+        if not os.path.isabs(filepath):
+            for root, dirnames, filenames in os.walk(args.dtbdir):
+                for filename in fnmatch.filter(filenames, filepath):
+                    filepath = os.path.join(root, filename)
         params['dt_file'] = open(filepath, 'rb')
         params['dt_offset'] = 0
         params['dt_size'] = os.fstat(params['dt_file'].fileno()).st_size