Merge #472

472: nvic: do not require `&mut self` for `request`. r=adamgreig a=Dirbaio

It's not needed, the register write is stateless/atomic. 

Co-authored-by: Dario Nieuwenhuis <dirbaio@dirbaio.net>

1 files changed, 3 insertions, 4 deletions

diff --git a/src/peripheral/nvic.rs b/src/peripheral/nvic.rs
index 067c1d9..fccd6a2 100644
--- a/src/peripheral/nvic.rs
+++ b/src/peripheral/nvic.rs
@@ -94,15 +94,14 @@ impl NVIC {
     /// [`NVIC::pend`]: #method.pend
     #[cfg(not(armv6m))]
     #[inline]
-    pub fn request<I>(&mut self, interrupt: I)
+    pub fn request<I>(interrupt: I)
     where
         I: InterruptNumber,
     {
         let nr = interrupt.number();
 
-        unsafe {
-            self.stir.write(u32::from(nr));
-        }
+        // NOTE(ptr) this is a write to a stateless register
+        unsafe { (*Self::PTR).stir.write(u32::from(nr)) }
     }
 
     /// Disables `interrupt`