diff --git a/embassy-stm32/src/rcc/common.rs b/embassy-stm32/src/rcc/bus.rs
similarity index 100%
rename from embassy-stm32/src/rcc/common.rs
rename to embassy-stm32/src/rcc/bus.rs
diff --git a/embassy-stm32/src/rcc/c0.rs b/embassy-stm32/src/rcc/c0.rs
index 6a932634..d8579079 100644
--- a/embassy-stm32/src/rcc/c0.rs
+++ b/embassy-stm32/src/rcc/c0.rs
@@ -1,4 +1,4 @@
-pub use super::common::{AHBPrescaler, APBPrescaler};
+pub use super::bus::{AHBPrescaler, APBPrescaler};
 use crate::pac::flash::vals::Latency;
 use crate::pac::rcc::vals::{Hsidiv, Ppre, Sw};
 use crate::pac::{FLASH, RCC};
diff --git a/embassy-stm32/src/rcc/f2.rs b/embassy-stm32/src/rcc/f2.rs
index ec4ed99b..9d9bc59f 100644
--- a/embassy-stm32/src/rcc/f2.rs
+++ b/embassy-stm32/src/rcc/f2.rs
@@ -1,7 +1,7 @@
 use core::convert::TryFrom;
 use core::ops::{Div, Mul};
 
-pub use super::common::{AHBPrescaler, APBPrescaler};
+pub use super::bus::{AHBPrescaler, APBPrescaler};
 use crate::pac::flash::vals::Latency;
 use crate::pac::rcc::vals::{Pllp, Pllsrc, Sw};
 use crate::pac::{FLASH, RCC};
@@ -201,7 +201,7 @@ pub struct PLLClocks {
     pub pll48_freq: Hertz,
 }
 
-pub use super::common::VoltageScale;
+pub use super::bus::VoltageScale;
 
 impl VoltageScale {
     const fn wait_states(&self, ahb_freq: Hertz) -> Option<Latency> {
diff --git a/embassy-stm32/src/rcc/f3.rs b/embassy-stm32/src/rcc/f3.rs
index 321270a7..7480c039 100644
--- a/embassy-stm32/src/rcc/f3.rs
+++ b/embassy-stm32/src/rcc/f3.rs
@@ -201,9 +201,9 @@ fn calc_pll(config: &Config, Hertz(sysclk): Hertz) -> (Hertz, PllConfig) {
     // Calculates the Multiplier and the Divisor to arrive at
     // the required System clock from PLL source frequency
     let get_mul_div = |sysclk, pllsrcclk| {
-        let common_div = gcd(sysclk, pllsrcclk);
-        let mut multiplier = sysclk / common_div;
-        let mut divisor = pllsrcclk / common_div;
+        let bus_div = gcd(sysclk, pllsrcclk);
+        let mut multiplier = sysclk / bus_div;
+        let mut divisor = pllsrcclk / bus_div;
         // Minimum PLL multiplier is two
         if multiplier == 1 {
             multiplier *= 2;
diff --git a/embassy-stm32/src/rcc/g0.rs b/embassy-stm32/src/rcc/g0.rs
index bf2d5199..7fdbcb00 100644
--- a/embassy-stm32/src/rcc/g0.rs
+++ b/embassy-stm32/src/rcc/g0.rs
@@ -1,4 +1,4 @@
-pub use super::common::{AHBPrescaler, APBPrescaler};
+pub use super::bus::{AHBPrescaler, APBPrescaler};
 use crate::pac::flash::vals::Latency;
 use crate::pac::rcc::vals::{self, Hsidiv, Ppre, Sw};
 use crate::pac::{FLASH, PWR, RCC};
diff --git a/embassy-stm32/src/rcc/g4.rs b/embassy-stm32/src/rcc/g4.rs
index dff04023..3b044cd1 100644
--- a/embassy-stm32/src/rcc/g4.rs
+++ b/embassy-stm32/src/rcc/g4.rs
@@ -2,7 +2,7 @@ use stm32_metapac::flash::vals::Latency;
 use stm32_metapac::rcc::vals::{Hpre, Pllsrc, Ppre, Sw};
 use stm32_metapac::FLASH;
 
-pub use super::common::{AHBPrescaler, APBPrescaler};
+pub use super::bus::{AHBPrescaler, APBPrescaler};
 use crate::pac::{PWR, RCC};
 use crate::rcc::sealed::RccPeripheral;
 use crate::rcc::{set_freqs, Clocks};
diff --git a/embassy-stm32/src/rcc/h5.rs b/embassy-stm32/src/rcc/h5.rs
index 2e72b193..5741cdf9 100644
--- a/embassy-stm32/src/rcc/h5.rs
+++ b/embassy-stm32/src/rcc/h5.rs
@@ -26,7 +26,7 @@ const VCO_MAX: u32 = 420_000_000;
 const VCO_WIDE_MIN: u32 = 128_000_000;
 const VCO_WIDE_MAX: u32 = 560_000_000;
 
-pub use super::common::{AHBPrescaler, APBPrescaler, VoltageScale};
+pub use super::bus::{AHBPrescaler, APBPrescaler, VoltageScale};
 
 pub enum HseMode {
     /// crystal/ceramic oscillator (HSEBYP=0)
diff --git a/embassy-stm32/src/rcc/h7.rs b/embassy-stm32/src/rcc/h7.rs
index 7fb4fb95..a6e69461 100644
--- a/embassy-stm32/src/rcc/h7.rs
+++ b/embassy-stm32/src/rcc/h7.rs
@@ -24,7 +24,7 @@ pub const HSI48_FREQ: Hertz = Hertz(48_000_000);
 /// LSI speed
 pub const LSI_FREQ: Hertz = Hertz(32_000);
 
-pub use super::common::VoltageScale;
+pub use super::bus::VoltageScale;
 
 #[derive(Clone, Copy)]
 pub enum AdcClockSource {
diff --git a/embassy-stm32/src/rcc/l0.rs b/embassy-stm32/src/rcc/l0.rs
index 46b58ca7..7f9ab01f 100644
--- a/embassy-stm32/src/rcc/l0.rs
+++ b/embassy-stm32/src/rcc/l0.rs
@@ -1,4 +1,4 @@
-pub use super::common::{AHBPrescaler, APBPrescaler};
+pub use super::bus::{AHBPrescaler, APBPrescaler};
 use crate::pac::rcc::vals::{Hpre, Msirange, Plldiv, Pllmul, Pllsrc, Ppre, Sw};
 use crate::pac::RCC;
 #[cfg(crs)]
diff --git a/embassy-stm32/src/rcc/l1.rs b/embassy-stm32/src/rcc/l1.rs
index bdfc5b87..ed949ea6 100644
--- a/embassy-stm32/src/rcc/l1.rs
+++ b/embassy-stm32/src/rcc/l1.rs
@@ -1,4 +1,4 @@
-pub use super::common::{AHBPrescaler, APBPrescaler};
+pub use super::bus::{AHBPrescaler, APBPrescaler};
 use crate::pac::rcc::vals::{Hpre, Msirange, Plldiv, Pllmul, Pllsrc, Ppre, Sw};
 use crate::pac::{FLASH, RCC};
 use crate::rcc::{set_freqs, Clocks};
diff --git a/embassy-stm32/src/rcc/l4.rs b/embassy-stm32/src/rcc/l4.rs
index b34b8caa..4c4b4bfd 100644
--- a/embassy-stm32/src/rcc/l4.rs
+++ b/embassy-stm32/src/rcc/l4.rs
@@ -4,7 +4,7 @@ use embassy_hal_internal::into_ref;
 use stm32_metapac::rcc::regs::Cfgr;
 use stm32_metapac::rcc::vals::{Lsedrv, Mcopre, Mcosel};
 
-pub use super::common::{AHBPrescaler, APBPrescaler};
+pub use super::bus::{AHBPrescaler, APBPrescaler};
 use crate::gpio::sealed::AFType;
 use crate::gpio::Speed;
 use crate::pac::rcc::vals::{Hpre, Msirange, Pllsrc, Ppre, Sw};
diff --git a/embassy-stm32/src/rcc/l5.rs b/embassy-stm32/src/rcc/l5.rs
index a85e1488..9e4e0fc7 100644
--- a/embassy-stm32/src/rcc/l5.rs
+++ b/embassy-stm32/src/rcc/l5.rs
@@ -1,6 +1,6 @@
 use stm32_metapac::PWR;
 
-pub use super::common::{AHBPrescaler, APBPrescaler};
+pub use super::bus::{AHBPrescaler, APBPrescaler};
 use crate::pac::rcc::vals::{Hpre, Msirange, Pllsrc, Ppre, Sw};
 use crate::pac::{FLASH, RCC};
 use crate::rcc::{set_freqs, Clocks};
diff --git a/embassy-stm32/src/rcc/mod.rs b/embassy-stm32/src/rcc/mod.rs
index 45a4d880..f9ac88d9 100644
--- a/embassy-stm32/src/rcc/mod.rs
+++ b/embassy-stm32/src/rcc/mod.rs
@@ -1,6 +1,6 @@
 #![macro_use]
 
-pub mod common;
+pub mod bus;
 
 use core::mem::MaybeUninit;
 
diff --git a/embassy-stm32/src/rcc/u5.rs b/embassy-stm32/src/rcc/u5.rs
index b5feeb0c..4aca9cd3 100644
--- a/embassy-stm32/src/rcc/u5.rs
+++ b/embassy-stm32/src/rcc/u5.rs
@@ -1,6 +1,6 @@
 use stm32_metapac::rcc::vals::{Msirange, Msirgsel, Pllm, Pllsrc, Sw};
 
-pub use super::common::{AHBPrescaler, APBPrescaler};
+pub use super::bus::{AHBPrescaler, APBPrescaler};
 use crate::pac::{FLASH, RCC};
 use crate::rcc::{set_freqs, Clocks};
 use crate::time::Hertz;
@@ -11,7 +11,7 @@ pub const HSI_FREQ: Hertz = Hertz(16_000_000);
 /// LSI speed
 pub const LSI_FREQ: Hertz = Hertz(32_000);
 
-pub use super::common::VoltageScale;
+pub use super::bus::VoltageScale;
 
 #[derive(Copy, Clone)]
 pub enum ClockSrc {
diff --git a/embassy-stm32/src/rcc/wb.rs b/embassy-stm32/src/rcc/wb.rs
index ae708b37..653d4d59 100644
--- a/embassy-stm32/src/rcc/wb.rs
+++ b/embassy-stm32/src/rcc/wb.rs
@@ -1,4 +1,4 @@
-pub use super::common::{AHBPrescaler, APBPrescaler};
+pub use super::bus::{AHBPrescaler, APBPrescaler};
 use crate::rcc::Clocks;
 use crate::rtc::{Rtc, RtcClockSource};
 use crate::time::{khz, mhz, Hertz};
diff --git a/embassy-stm32/src/rcc/wl.rs b/embassy-stm32/src/rcc/wl.rs
index f1dd2bd7..29f50dc6 100644
--- a/embassy-stm32/src/rcc/wl.rs
+++ b/embassy-stm32/src/rcc/wl.rs
@@ -1,4 +1,4 @@
-pub use super::common::{AHBPrescaler, APBPrescaler, VoltageScale};
+pub use super::bus::{AHBPrescaler, APBPrescaler, VoltageScale};
 use crate::pac::pwr::vals::Dbp;
 use crate::pac::{FLASH, PWR, RCC};
 use crate::rcc::{set_freqs, Clocks};