About libertas_spi: 16 bit data transfer

[Ivan Li]

Hi guys,

I am using SD8686 on i.MX31 with SPI interface, and for now I can't make it work.

The i.MX31 supports 8, 16, 32bit for data transfer, and as I know the SD8686 transfers data in 16 bits.
So I made below setup callback: 

static int mxc_libertas_setup(struct spi_device *spi)
{
 spi->bits_per_word = 16;
 spi_setup(spi);
 return 0;
}

But, in if_spi.c, I still see the "word" data is tranmitting in bytes.
Can anybody explain a little bit? And is there anybody making sd8686 spi work on i.MX series?
Thanks!