Fix I2S output when also using I2S input with CPU > 120 MHz

output_i2s.cpp

@@ -65,7 +65,8 @@ void AudioOutputI2S::begin(void)
 	update_responsibility = update_setup();
 	dma.enable();
 
-	I2S0_TCSR |= I2S_TCSR_TE | I2S_TCSR_BCE | I2S_TCSR_FRDE | I2S_TCSR_FR;
+	I2S0_TCSR = I2S_TCSR_SR;
+	I2S0_TCSR = I2S_TCSR_TE | I2S_TCSR_BCE | I2S_TCSR_FRDE;
 	dma.attachInterrupt(isr);
 }