stm32/i2c: remove busy waiting on BUSY flag in v2

Author: mahu-wm

embassy-stm32/CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased - ReleaseDate
 
+- fix: stm32/i2c fix busy waiting on BUSY flag in v2
 - fix: flash erase on dual-bank STM32Gxxx
 - feat: Add support for STM32N657X0
 - feat: timer: Add 32-bit timer support to SimplePwm waveform_up method following waveform pattern ([#4717](https://github.com/embassy-rs/embassy/pull/4717))

embassy-stm32/src/i2c/v2.rs

@@ -183,11 +183,6 @@ impl<'d, M: Mode, IM: MasterMode> I2c<'d, M, IM> {
             timeout.check()?;
         }
 
-        // Wait for the bus to be free
-        while info.regs.isr().read().busy() {
-            timeout.check()?;
-        }
-
         let reload = if reload {
             i2c::vals::Reload::NOT_COMPLETED
         } else {