i.mx 6 solo, linux 3.10.45
When the following message appears, the sound of the bluetooth phone becomes abnormal.
fsl-ssi-dai 202c000.ssi: slot number should be >= 2 in I2S or NET
imx-uart 21f4000.serial: Rx FIFO overrun
fsl-ssi-dai 202c000.ssi: slot number should be >= 2 in I2S or NET
imx-uart 21f4000.serial: Rx FIFO overrun
... ...