From e75cb1a56498a2f0b48e63426e9c10c6520aead0 Mon Sep 17 00:00:00 2001
From: Grant Miller <GrantM11235@gmail.com>
Date: Tue, 7 Dec 2021 00:48:44 -0600
Subject: [PATCH] Regs type alias

---
 embassy-stm32/src/spi/mod.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/embassy-stm32/src/spi/mod.rs b/embassy-stm32/src/spi/mod.rs
index 8befaf529..f47347265 100644
--- a/embassy-stm32/src/spi/mod.rs
+++ b/embassy-stm32/src/spi/mod.rs
@@ -22,6 +22,8 @@ use embassy_traits::spi as traits;
 mod _version;
 pub use _version::*;
 
+type Regs = &'static crate::pac::spi::Spi;
+
 #[derive(Debug)]
 #[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum Error {
@@ -395,7 +397,7 @@ fn check_error_flags(sr: regs::Sr) -> Result<(), Error> {
     Ok(())
 }
 
-fn spin_until_tx_ready(regs: &'static crate::pac::spi::Spi) -> Result<(), Error> {
+fn spin_until_tx_ready(regs: Regs) -> Result<(), Error> {
     loop {
         let sr = unsafe { regs.sr().read() };
 
@@ -412,7 +414,7 @@ fn spin_until_tx_ready(regs: &'static crate::pac::spi::Spi) -> Result<(), Error>
     }
 }
 
-fn spin_until_rx_ready(regs: &'static crate::pac::spi::Spi) -> Result<(), Error> {
+fn spin_until_rx_ready(regs: Regs) -> Result<(), Error> {
     loop {
         let sr = unsafe { regs.sr().read() };
 
@@ -440,7 +442,7 @@ impl Word for u16 {
     const WORDSIZE: WordSize = WordSize::SixteenBit;
 }
 
-fn transfer_word<W: Word>(regs: &'static crate::pac::spi::Spi, tx_word: W) -> Result<W, Error> {
+fn transfer_word<W: Word>(regs: Regs, tx_word: W) -> Result<W, Error> {
     spin_until_tx_ready(regs)?;
 
     unsafe {