low_power: i2c wakeup

1 files changed, 5 insertions, 0 deletions

diff --git a/embassy-stm32/src/i2c/v2.rs b/embassy-stm32/src/i2c/v2.rs
index 01b6b8800..a2184630f 100644
--- a/embassy-stm32/src/i2c/v2.rs
+++ b/embassy-stm32/src/i2c/v2.rs
@@ -70,6 +70,11 @@ fn debug_print_interrupts(isr: stm32_metapac::i2c::regs::Isr) {
 }
 
 pub(crate) unsafe fn on_interrupt<T: Instance>() {
+    // restore the clocks to their last configured state as
+    // much is lost in STOP modes
+    #[cfg(all(feature = "low-power", stm32wlex))]
+    crate::low_power::on_wakeup_irq();
+
     let regs = T::info().regs;
     let isr = regs.isr().read();