> is 16 bits. But per our experiment and validation on medfield platform, 16 bit > word width cannot cover all scenarioes, 32 bits word width is a better choice > to avoid SPI FIFO overrun. Therefore, SPI controller is likely to configure its > word width as either 16 bits or 32 bits. This patch is to implement 2 functions > (swap_buf_16() and swap_buf_32()) to adapt the two configurations. And how will you get both to work with the same kernel, which is the way Linux wants to work (and avoids the nasty mess some other embedded platforms have gotten themselves into). What you probably want to do is is put a 16/32bit flag into the platform data and then in ifx_spi_spi_probe() just do if (pl_data->spi_32) ifx_dev->swap = swap_buf_32; else ifx_dev->swap = swap_buf; then call ifx_dev->swap_buf() Alan -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
