Fix usage of pin modes in SMI impl

Author: Johannes Draaijer

examples/pktgen.rs

@@ -63,8 +63,10 @@ fn main() -> ! {
         rx_d1: gpioc.pc5,
     };
 
-    let mut mdio = gpioa.pa2.into_alternate().set_speed(Speed::VeryHigh);
-    let mut mdc = gpioc.pc1.into_alternate().set_speed(Speed::VeryHigh);
+    let mut mdio = gpioa.pa2.into_alternate();
+    mdio.set_speed(Speed::VeryHigh);
+    let mut mdc = gpioc.pc1.into_alternate();
+    mdc.set_speed(Speed::VeryHigh);
 
     let mut rx_ring: [RingEntry<_>; 16] = Default::default();
     let mut tx_ring: [RingEntry<_>; 8] = Default::default();

src/smi.rs

@@ -106,12 +106,12 @@ where
 
 #[cfg(feature = "stm32f4xx-hal")]
 mod pin_impls {
-    use crate::hal::gpio::{gpioa::PA2, gpioc::PC1, Alternate, PushPull};
+    use crate::hal::gpio::{gpioa::PA2, gpioc::PC1, Alternate};
 
     const AF11: u8 = 11;
 
-    unsafe impl super::MdioPin for PA2<Alternate<PushPull, AF11>> {}
-    unsafe impl super::MdcPin for PC1<Alternate<PushPull, AF11>> {}
+    unsafe impl super::MdioPin for PA2<Alternate<AF11>> {}
+    unsafe impl super::MdcPin for PC1<Alternate<AF11>> {}
 }
 
 #[cfg(feature = "stm32f7xx-hal")]