From d5f4fc7c2e61ccbf56ddd23be1ed14052c2f8dc0 Mon Sep 17 00:00:00 2001
From: Nick Brassel <nick@tzarc.org>
Date: Tue, 25 Aug 2020 18:58:22 +1000
Subject: [PATCH] Define STM32_DMA_REQUIRED when using DMA-based WS2812 driver
 on STM32. (#10127)

---
 common_features.mk | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/common_features.mk b/common_features.mk
index 855ee8cea1..04e27b267b 100644
--- a/common_features.mk
+++ b/common_features.mk
@@ -307,6 +307,12 @@ ifeq ($(strip $(WS2812_DRIVER_REQUIRED)), yes)
         SRC += ws2812.c
     else
         SRC += ws2812_$(strip $(WS2812_DRIVER)).c
+
+        ifeq ($(strip $(PLATFORM)), CHIBIOS)
+            ifeq ($(strip $(WS2812_DRIVER)), pwm)
+                OPT_DEFS += -DSTM32_DMA_REQUIRED=TRUE
+            endif
+        endif
     endif
 
     # add extra deps