added docstring for gpio2

diff --git a/src/test_bsv/tests/test_pinmux.py b/src/test_bsv/tests/test_pinmux.py
index 2888478bcaac1a15b934236cf77b80949251bae2..16506848cbbb137c433b696d80a433383c3ce36e 100644 (file)
--- a/src/test_bsv/tests/test_pinmux.py
+++ b/src/test_bsv/tests/test_pinmux.py
@@ -8,7 +8,12 @@ import random
 
 """ dut is design under test """
 
-
+"""
+for gpio2, there are three ports at peripheral side:
+    peripheral_side_gpioa_a2_out_in
+    peripheral_side_gpioa_a2_outen_in
+    peripheral_side_gpioa_a2_in
+"""
 @cocotb.test()
 def pinmux_gpio2(dut):
     """Test for GPIO2"""