From a72816492ac09898fc7d72fe20cc0e025d5292a6 Mon Sep 17 00:00:00 2001
From: Bob McWhirter <bmcwhirt@redhat.com>
Date: Tue, 26 Oct 2021 14:19:03 -0400
Subject: [PATCH] Only attempt to enable the dmamux peri clock if it has an
 enable bit.

---
 embassy-stm32/src/dma/dmamux.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/embassy-stm32/src/dma/dmamux.rs b/embassy-stm32/src/dma/dmamux.rs
index ef84f126..4ce65eb2 100644
--- a/embassy-stm32/src/dma/dmamux.rs
+++ b/embassy-stm32/src/dma/dmamux.rs
@@ -53,7 +53,11 @@ use crate::rcc::sealed::RccPeripheral;
 pub(crate) unsafe fn init() {
     pac::peripherals! {
         (dmamux, $peri:ident) => {
-            crate::peripherals::$peri::enable();
+            pac::peripheral_rcc! {
+                ($peri, $clock:ident, $en_reg:ident, $rst_reg:ident, $en_fn:ident, $rst_fn:ident) => {
+                    crate::peripherals::$peri::enable()
+                };
+            }
         };
     }
 }