Fix format and trailing-whitespace

Author: SalamCytron

ports/raspberrypi/audio_dma.c

@@ -123,7 +123,7 @@ STATIC size_t audio_dma_convert_samples(audio_dma_t *dma, uint8_t *input, uint32
         mp_raise_RuntimeError(MP_ERROR_TEXT("Audio conversion not implemented"));
     }
     if (dma->swap_channel){
-    // Loop for swapping left and right channels
+        // Loop for swapping left and right channels
         for (uint32_t i = 0; i < out_i; i += 2) {
             uint16_t temp = ((uint16_t *)output)[i];
             ((uint16_t *)output)[i] = ((uint16_t *)output)[i + 1];

ports/raspberrypi/common-hal/audiopwmio/PWMAudioOut.c

@@ -230,7 +230,7 @@ void common_hal_audiopwmio_pwmaudioout_play(audiopwmio_pwmaudioout_obj_t *self,
         BITS_PER_SAMPLE,
         (uint32_t)tx_register,  // output register: PWM cc register
         0x3b + pacing_timer, // data request line
-        self->swap_channel); 
+        self->swap_channel);
 
     if (result == AUDIO_DMA_DMA_BUSY) {
         common_hal_audiopwmio_pwmaudioout_stop(self);