mspm0-I2C: automate source clock definition

- i2c-config: automatically defines clock source based on input I2C rate
- i2c: proper config functions naming
- i2c-examples: adapt to changed API
- i2c: save initialization pf cctr register

4 files changed, 8 insertions, 20 deletions

diff --git a/examples/mspm0g3507/src/bin/i2c.rs b/examples/mspm0g3507/src/bin/i2c.rs
index 752649dbc..b87a0184f 100644
--- a/examples/mspm0g3507/src/bin/i2c.rs
+++ b/examples/mspm0g3507/src/bin/i2c.rs
@@ -7,7 +7,7 @@
 
 use defmt::*;
 use embassy_executor::Spawner;
-use embassy_mspm0::i2c::{BusSpeed, ClockSel, Config, I2c};
+use embassy_mspm0::i2c::{Config, I2c};
 use {defmt_rtt as _, panic_halt as _};
 
 const ADDRESS: u8 = 0x6a;
@@ -20,10 +20,7 @@ async fn main(_spawner: Spawner) -> ! {
     let scl = p.PB2;
     let sda = p.PB3;
 
-    let mut config = Config::default();
-    config.clock_source = ClockSel::BusClk;
-    config.bus_speed = BusSpeed::FastMode;
-    let mut i2c = unwrap!(I2c::new_blocking(instance, scl, sda, config));
+    let mut i2c = unwrap!(I2c::new_blocking(instance, scl, sda, Config::default()));
 
     let mut to_read = [0u8; 1];
     let to_write: u8 = 0x0F;
diff --git a/examples/mspm0g3507/src/bin/i2c_async.rs b/examples/mspm0g3507/src/bin/i2c_async.rs
index bc50a2623..044a71355 100644
--- a/examples/mspm0g3507/src/bin/i2c_async.rs
+++ b/examples/mspm0g3507/src/bin/i2c_async.rs
@@ -8,7 +8,7 @@
 use defmt::*;
 use embassy_executor::Spawner;
 use embassy_mspm0::bind_interrupts;
-use embassy_mspm0::i2c::{BusSpeed, ClockSel, Config, I2c, InterruptHandler};
+use embassy_mspm0::i2c::{Config, I2c, InterruptHandler};
 use embassy_mspm0::peripherals::I2C1;
 use {defmt_rtt as _, panic_halt as _};
 
@@ -26,10 +26,7 @@ async fn main(_spawner: Spawner) -> ! {
     let scl = p.PB2;
     let sda = p.PB3;
 
-    let mut config = Config::default();
-    config.clock_source = ClockSel::BusClk;
-    config.bus_speed = BusSpeed::FastMode;
-    let mut i2c = unwrap!(I2c::new_async(instance, scl, sda, Irqs, config));
+    let mut i2c = unwrap!(I2c::new_async(instance, scl, sda, Irqs, Config::default()));
 
     let mut to_read = [0u8; 1];
     let to_write: u8 = 0x0F;
diff --git a/examples/mspm0l1306/src/bin/i2c.rs b/examples/mspm0l1306/src/bin/i2c.rs
index 02c0ee740..cf65206b2 100644
--- a/examples/mspm0l1306/src/bin/i2c.rs
+++ b/examples/mspm0l1306/src/bin/i2c.rs
@@ -7,7 +7,7 @@
 
 use defmt::*;
 use embassy_executor::Spawner;
-use embassy_mspm0::i2c::{BusSpeed, ClockSel, Config, I2c};
+use embassy_mspm0::i2c::{Config, I2c};
 use {defmt_rtt as _, panic_halt as _};
 
 const ADDRESS: u8 = 0x6a;
@@ -20,10 +20,7 @@ async fn main(_spawner: Spawner) -> ! {
     let scl = p.PA1;
     let sda = p.PA0;
 
-    let mut config = Config::default();
-    config.clock_source = ClockSel::BusClk;
-    config.bus_speed = BusSpeed::FastMode;
-    let mut i2c = unwrap!(I2c::new_blocking(instance, scl, sda, config));
+    let mut i2c = unwrap!(I2c::new_blocking(instance, scl, sda, Config::default()));
 
     let mut to_read = [0u8; 1];
     let to_write: u8 = 0x0F;
diff --git a/examples/mspm0l1306/src/bin/i2c_async.rs b/examples/mspm0l1306/src/bin/i2c_async.rs
index 34e2c64e7..a54beebe5 100644
--- a/examples/mspm0l1306/src/bin/i2c_async.rs
+++ b/examples/mspm0l1306/src/bin/i2c_async.rs
@@ -8,7 +8,7 @@
 use defmt::*;
 use embassy_executor::Spawner;
 use embassy_mspm0::bind_interrupts;
-use embassy_mspm0::i2c::{BusSpeed, ClockSel, Config, I2c, InterruptHandler};
+use embassy_mspm0::i2c::{Config, I2c, InterruptHandler};
 use embassy_mspm0::peripherals::I2C0;
 use {defmt_rtt as _, panic_halt as _};
 
@@ -26,10 +26,7 @@ async fn main(_spawner: Spawner) -> ! {
     let scl = p.PA1;
     let sda = p.PA0;
 
-    let mut config = Config::default();
-    config.clock_source = ClockSel::BusClk;
-    config.bus_speed = BusSpeed::FastMode;
-    let mut i2c = unwrap!(I2c::new_async(instance, scl, sda, Irqs, config));
+    let mut i2c = unwrap!(I2c::new_async(instance, scl, sda, Irqs, Config::default()));
 
     let mut to_read = [0u8; 1];
     let to_write: u8 = 0x0F;