rp: let SPI RX overflow during async write

embassy-rp/src/dma.rs

@@ -56,25 +56,6 @@ pub unsafe fn read<'a, C: Channel, W: Word>(
     )
 }
 
-pub unsafe fn read_repeated<'a, C: Channel, W: Word>(
-    ch: impl Peripheral<P = C> + 'a,
-    from: *const W,
-    len: usize,
-    dreq: u8,
-) -> Transfer<'a, C> {
-    let mut dummy: u32 = 0;
-    copy_inner(
-        ch,
-        from as *const u32,
-        &mut dummy as *mut u32,
-        len,
-        W::size(),
-        false,
-        false,
-        dreq,
-    )
-}
-
 pub unsafe fn write<'a, C: Channel, W: Word>(
     ch: impl Peripheral<P = C> + 'a,
     from: *const [W],