From 3abc2e592f66c16ada6c475e48cde282b79d3c1f Mon Sep 17 00:00:00 2001
From: xoviat <xoviat@users.noreply.github.com>
Date: Thu, 20 Nov 2025 14:27:31 -0600
Subject: adc: allow usage of anyadcchannel for adc4

---
 embassy-stm32/CHANGELOG.md      | 1 +
 embassy-stm32/src/adc/mod.rs    | 6 +++---
 examples/stm32u5/src/bin/adc.rs | 2 +-
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/embassy-stm32/CHANGELOG.md b/embassy-stm32/CHANGELOG.md
index 597cbb192..c547fa443 100644
--- a/embassy-stm32/CHANGELOG.md
+++ b/embassy-stm32/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased - ReleaseDate
 
+- feat: allow use of anyadcchannel for adc4
 - change: rework hsem and add HIL test for some chips.
 - change: stm32/eth: ethernet no longer has a hard dependency on station management, and station management can be used independently ([#4871](https://github.com/embassy-rs/embassy/pull/4871))
 - feat: allow embassy_executor::main for low power
diff --git a/embassy-stm32/src/adc/mod.rs b/embassy-stm32/src/adc/mod.rs
index 74648cc21..755cb78c2 100644
--- a/embassy-stm32/src/adc/mod.rs
+++ b/embassy-stm32/src/adc/mod.rs
@@ -436,9 +436,9 @@ pub struct AnyAdcChannel<T> {
     is_differential: bool,
     _phantom: PhantomData<T>,
 }
-impl_peripheral!(AnyAdcChannel<T: Instance>);
-impl<T: Instance> AdcChannel<T> for AnyAdcChannel<T> {}
-impl<T: Instance> SealedAdcChannel<T> for AnyAdcChannel<T> {
+impl_peripheral!(AnyAdcChannel<T: AnyInstance>);
+impl<T: AnyInstance> AdcChannel<T> for AnyAdcChannel<T> {}
+impl<T: AnyInstance> SealedAdcChannel<T> for AnyAdcChannel<T> {
     fn channel(&self) -> u8 {
         self.channel
     }
diff --git a/examples/stm32u5/src/bin/adc.rs b/examples/stm32u5/src/bin/adc.rs
index ad59c0bea..4d2d93aa2 100644
--- a/examples/stm32u5/src/bin/adc.rs
+++ b/examples/stm32u5/src/bin/adc.rs
@@ -31,7 +31,7 @@ async fn main(_spawner: embassy_executor::Spawner) {
 
     // **** ADC4 init ****
     let mut adc4 = Adc::new_adc4(p.ADC4);
-    let mut adc4_pin1 = p.PC1; // A4
+    let mut adc4_pin1 = p.PC1.degrade_adc(); // A4
     let mut adc4_pin2 = p.PC0; // A5
     adc4.set_resolution_adc4(adc4::Resolution::BITS12);
     adc4.set_averaging_adc4(adc4::Averaging::Samples256);
-- 
cgit