Remove comments, add some comments, minor fixes to dsihost.rs

embassy-stm32/src/dsihost.rs

@@ -193,6 +193,7 @@ impl<'d, T: Instance> DsiHost<'d, T> {
             // data[0] and [1] have to exist if long_write is called.
             w.set_data3(data[1]);
             w.set_data2(data[0]);
+
             // DCS Code
             w.set_data1(dcs_code);
         });
@@ -301,6 +302,15 @@ impl<'d, T: Instance> DsiHost<'d, T> {
             }
         }
 
+        /*
+        // Used this to check whether there are read errors. Does not seem like it.
+        if !self.read_busy() {
+            defmt::debug!("Read not busy!");
+            if self.packet_size_error() {
+                return Err(Error::ReadError);
+            }
+        }
+        */
         Ok(())
     }
     fn wait_command_fifo_empty(&self) -> Result<(), Error> {

embassy-stm32/src/ltdc.rs

@@ -53,6 +53,7 @@ impl<'d, T: Instance> Ltdc<'d, T> {
                 .dckcfgr1()
                 .modify(|w| w.set_pllsaidivr(stm32_metapac::rcc::vals::Pllsaidivr::DIV2));
 
+            // It is set to RCC_PLLSAIDIVR_2 in ST's BSP example for the STM32469I-DISCO.
             #[cfg(not(any(stm32f7, stm32u5)))]
             stm32_metapac::RCC
                 .dckcfgr()