From 6454378fe71d4dea7b85c12424a65e4d9487dfa7 Mon Sep 17 00:00:00 2001
From: whitequark <whitequark@whitequark.org>
Date: Fri, 28 Jun 2019 07:05:10 +0000
Subject: [PATCH] vendor.lattice_ice40: fix instance of negedge FF due to a
 typo.

---
 nmigen/vendor/lattice_ice40.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nmigen/vendor/lattice_ice40.py b/nmigen/vendor/lattice_ice40.py
index f298ece..02c9459 100644
--- a/nmigen/vendor/lattice_ice40.py
+++ b/nmigen/vendor/lattice_ice40.py
@@ -128,7 +128,7 @@ class LatticeICE40Platform(TemplatedPlatform):
     def _get_io_buffer(self, m, pin, port, attrs, i_invert=None, o_invert=None):
         def get_dff(clk, d, q):
             m.submodules += Instance("$dff",
-                p_CLK_POLARITY=0,
+                p_CLK_POLARITY=1,
                 p_WIDTH=len(d),
                 i_CLK=clk,
                 i_D=d,
-- 
2.30.2