Fix some clippy warnings flagged by current beta (#505)

* Fix some clippy warnings flagged by current beta

(One warning was just silenced because I consider the current code more readable)

* cargo fmt

boards/pimoroni-pico-explorer/src/lib.rs

@@ -270,15 +270,7 @@ impl PicoExplorer {
     pub fn get_adc<Pin: Channel<Adc, ID = u8>>(&mut self, channel: &mut Pin) -> f32 {
         // scale raw 12-bit adc value to 0 .. 1 float
         let adc_value: u16 = self.adc.read(channel).unwrap();
-        let mut result: f32 = f32::from(adc_value) / f32::from(1u16 << 12);
-        // clamp result to 0 .. 1
-        if result > 1.0 {
-            result = 1.0
-        }
-
-        if result < 0.0 {
-            result = 0.0
-        }
-        result
+        let result: f32 = f32::from(adc_value) / f32::from(1u16 << 12);
+        result.clamp(0.0, 1.0)
     }
 }

boards/rp-pico/examples/pico_rtic_monotonic.rs

@@ -8,7 +8,6 @@ mod app {
 
     use embedded_hal::digital::v2::OutputPin;
     use fugit::ExtU64;
-    use fugit::MicrosDurationU32;
     use rp_pico::{
         hal::{
             self,
@@ -20,8 +19,6 @@ mod app {
         XOSC_CRYSTAL_FREQ,
     };
 
-    const SCAN_TIME_US: MicrosDurationU32 = MicrosDurationU32::secs(1);
-
     #[shared]
     struct Shared {
         led: hal::gpio::Pin<hal::gpio::pin::bank0::Gpio25, hal::gpio::PushPullOutput>,

rp2040-hal/src/pio.rs

@@ -216,7 +216,7 @@ impl<P: PIOExt> PIO<P> {
                 });
             self.used_instruction_space |= Self::instruction_mask(p.code.len()) << offset;
             Ok(InstalledProgram {
-                offset: offset as u8,
+                offset,
                 length: p.code.len() as u8,
                 side_set: p.side_set,
                 wrap: p.wrap,
@@ -2028,9 +2028,8 @@ impl<P: PIOExt> PIOBuilder<P> {
 
                 w.out_sticky().bit(self.out_sticky);
 
-                w.wrap_top().bits(offset as u8 + self.program.wrap.source);
-                w.wrap_bottom()
-                    .bits(offset as u8 + self.program.wrap.target);
+                w.wrap_top().bits(offset + self.program.wrap.source);
+                w.wrap_bottom().bits(offset + self.program.wrap.target);
 
                 let n = match self.mov_status {
                     MovStatusConfig::Tx(n) => {
@@ -2085,7 +2084,7 @@ impl<P: PIOExt> PIOBuilder<P> {
         // to the beginning of the program we loaded in.
         let instr = InstructionOperands::JMP {
             condition: pio::JmpCondition::Always,
-            address: offset as u8,
+            address: offset,
         }
         .encode();
         // Safety: Only instance owning the SM

rp2040-hal/src/sio.rs

@@ -157,7 +157,7 @@ impl SioFifo {
 
         // Write the value to the FIFO - the other core will now be able to
         // pop it off its end of the FIFO.
-        self.write(value as u32);
+        self.write(value);
 
         // Fire off an event to the other core
         cortex_m::asm::sev();

rp2040-hal/src/spi.rs

@@ -158,7 +158,7 @@ impl<D: SpiDevice, const DS: u8> Spi<Disabled, D, DS> {
         self.device.reset_bring_up(resets);
 
         self.set_baudrate(peri_frequency, baudrate);
-        self.set_format(DS as u8, mode);
+        self.set_format(DS, mode);
         // Always enable DREQ signals -- harmless if DMA is not listening
         self.device
             .sspdmacr

rp2040-hal/src/uart/peripheral.rs

@@ -280,7 +280,7 @@ fn configure_baudrate(
 
     // First we load the integer part of the divider.
     device.uartibrd.write(|w| unsafe {
-        w.baud_divint().bits(baud_div_int as u16);
+        w.baud_divint().bits(baud_div_int);
         w
     });
 

rp2040-hal/src/usb.rs

@@ -124,6 +124,7 @@ use usb_device::{
 #[cfg(feature = "rp2040-e5")]
 mod errata5;
 
+#[allow(clippy::bool_to_int_with_if)]
 fn ep_addr_to_ep_buf_ctrl_idx(ep_addr: EndpointAddress) -> usize {
     ep_addr.index() * 2 + (if ep_addr.is_in() { 0 } else { 1 })
 }