[PATCH 04/17] pylibfdt: Add Property.as_stringlist()

From: Luca Weiss <[email protected]>

Add a new method for decoding a string list property, useful for e.g.
the "reg-names" property.

This is a backport of dtc commit 83102717d7c4 ("pylibfdt: add
Property.as_stringlist()"), without the dtc-side test, which has no
counterpart in U-Boot's test suite.

Signed-off-by: Luca Weiss <[email protected]>
Signed-off-by: David Gibson <[email protected]>
[adapted to U-Boot]
Signed-off-by: Alexey Charkov <[email protected]>
---
 scripts/dtc/pylibfdt/libfdt.i_shipped | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/scripts/dtc/pylibfdt/libfdt.i_shipped b/scripts/dtc/pylibfdt/libfdt.i_shipped
index 5025893b1e95..c8ac578b367b 100644
--- a/scripts/dtc/pylibfdt/libfdt.i_shipped
+++ b/scripts/dtc/pylibfdt/libfdt.i_shipped
@@ -728,6 +728,13 @@ class Property(bytearray):
             raise ValueError('Property contains embedded nul characters')
         return self[:-1].decode('utf-8')
 
+    def as_stringlist(self):
+        """Unicode is supported by decoding from UTF-8"""
+        if self[-1] != 0:
+            raise ValueError('Property lacks nul termination')
+        parts = self[:-1].split(b'\x00')
+        return list(map(lambda x: x.decode('utf-8'), parts))
+
 
 class FdtSw(FdtRo):
     """Software interface to create a device tree from scratch

-- 
2.54.0