nrf: add persist() method for gpiote and timer

2 files changed, 27 insertions, 0 deletions

diff --git a/embassy-nrf/src/gpiote.rs b/embassy-nrf/src/gpiote.rs
index d169b49f9..43e43f0bf 100644
--- a/embassy-nrf/src/gpiote.rs
+++ b/embassy-nrf/src/gpiote.rs
@@ -193,6 +193,15 @@ pub struct InputChannel<'d> {
     pin: Input<'d>,
 }
 
+impl InputChannel<'static> {
+    /// Persist the channel's configuration for the rest of the program's lifetime. This method
+    /// should be preferred over [`core::mem::forget()`] because the `'static` bound prevents
+    /// accidental reuse of the underlying peripheral.
+    pub fn persist(self) {
+        core::mem::forget(self);
+    }
+}
+
 impl<'d> Drop for InputChannel<'d> {
     fn drop(&mut self) {
         let g = regs();
@@ -263,6 +272,15 @@ pub struct OutputChannel<'d> {
     _pin: Output<'d>,
 }
 
+impl OutputChannel<'static> {
+    /// Persist the channel's configuration for the rest of the program's lifetime. This method
+    /// should be preferred over [`core::mem::forget()`] because the `'static` bound prevents
+    /// accidental reuse of the underlying peripheral.
+    pub fn persist(self) {
+        core::mem::forget(self);
+    }
+}
+
 impl<'d> Drop for OutputChannel<'d> {
     fn drop(&mut self) {
         let g = regs();
diff --git a/embassy-nrf/src/timer.rs b/embassy-nrf/src/timer.rs
index b6a77bd2e..5d6afe49b 100644
--- a/embassy-nrf/src/timer.rs
+++ b/embassy-nrf/src/timer.rs
@@ -218,6 +218,15 @@ impl<'d, T: Instance> Timer<'d, T> {
     }
 }
 
+impl<T: Instance> Timer<'static, T> {
+    /// Persist the timer's configuration for the rest of the program's lifetime. This method
+    /// should be preferred over [`core::mem::forget()`] because the `'static` bound prevents
+    /// accidental reuse of the underlying peripheral.
+    pub fn persist(self) {
+        core::mem::forget(self);
+    }
+}
+
 impl<'d, T: Instance> Drop for Timer<'d, T> {
     fn drop(&mut self) {
         self.stop();