diff --git a/embassy-stm32/src/bdma/v1.rs b/embassy-stm32/src/bdma/v1.rs
index fd3bf699..5d612367 100644
--- a/embassy-stm32/src/bdma/v1.rs
+++ b/embassy-stm32/src/bdma/v1.rs
@@ -92,7 +92,7 @@ pub(crate) async unsafe fn transfer_m2p(
     state_number: usize,
     src: &[u8],
     dst: *mut u8,
-    #[cfg(dmamux)] dmamux_regs: &'static pac::dmamux::Dmamux,
+    #[cfg(dmamux)] dmamux_regs: pac::dmamux::Dmamux,
     #[cfg(dmamux)] dmamux_ch_num: u8,
     #[cfg(dmamux)] request: u8,
 ) {
@@ -272,7 +272,7 @@ macro_rules! impl_dma_channel {
                 use crate::dmamux::sealed::Channel as _MuxChannel;
                 use crate::dmamux::sealed::PeripheralChannel;
                 let dmamux_regs = self.dmamux_regs();
-                let dmamux_ch_num = self.dma_ch_num();
+                let dmamux_ch_num = self.dmamux_ch_num();
                 let request = PeripheralChannel::<T, crate::dmamux::M2P>::request(self);
                 unsafe {
                     transfer_m2p(
diff --git a/embassy-stm32/src/dmamux/mod.rs b/embassy-stm32/src/dmamux/mod.rs
index 745906cd..79dea296 100644
--- a/embassy-stm32/src/dmamux/mod.rs
+++ b/embassy-stm32/src/dmamux/mod.rs
@@ -101,7 +101,7 @@ pub(crate) async unsafe fn transfer_m2p(
  */
 
 pub(crate) unsafe fn configure_dmamux(
-    dmamux_regs: &pac::dmamux::Dmamux,
+    dmamux_regs: pac::dmamux::Dmamux,
     dmamux_ch_num: u8,
     request: u8,
 ) {
@@ -123,15 +123,11 @@ pub(crate) mod sealed {
     use super::*;
 
     pub trait DmaMux {
-        fn regs() -> &'static pac::dmamux::Dmamux;
+        fn regs() -> pac::dmamux::Dmamux;
     }
 
     pub trait Channel {
-        fn num(&self) -> usize;
-        fn dma_regs() -> &'static pac::bdma::Dma;
-        fn dma_ch_num(&self) -> u8;
-
-        fn dmamux_regs(&self) -> &'static pac::dmamux::Dmamux;
+        fn dmamux_regs(&self) -> pac::dmamux::Dmamux;
         fn dmamux_ch_num(&self) -> u8;
     }
 
@@ -151,20 +147,8 @@ macro_rules! impl_dma_channel {
     ($channel_peri:ident, $dmamux_peri:ident, $channel_num:expr, $dma_peri: ident, $dma_num:expr) => {
         impl Channel for peripherals::$channel_peri {}
         impl sealed::Channel for peripherals::$channel_peri {
-            fn num(&self) -> usize {
-                ($dma_num * 8) + $channel_num
-            }
-
-            fn dma_regs() -> &'static pac::bdma::Dma {
-                &crate::pac::$dma_peri
-            }
-
-            fn dma_ch_num(&self) -> u8 {
-                $channel_num
-            }
-
-            fn dmamux_regs(&self) -> &'static pac::dmamux::Dmamux {
-                &crate::pac::$dmamux_peri
+            fn dmamux_regs(&self) -> pac::dmamux::Dmamux {
+                crate::pac::$dmamux_peri
             }
 
             fn dmamux_ch_num(&self) -> u8 {
@@ -177,8 +161,8 @@ macro_rules! impl_dma_channel {
 macro_rules! impl_dmamux {
     ($peri:ident) => {
         impl sealed::DmaMux for peripherals::$peri {
-            fn regs() -> &'static pac::dmamux::Dmamux {
-                &pac::$peri
+            fn regs() -> pac::dmamux::Dmamux {
+                pac::$peri
             }
         }
         impl DmaMux for peripherals::$peri {}