struct spi_transfer *xfer;
unsigned long flags;
struct device *controller = spi->master->dev.parent;
+ u8 bits;
+ struct atmel_spi_device *asd;
as = spi_master_get_devdata(spi->master);
return -EINVAL;
}
+ if (xfer->bits_per_word) {
+ asd = spi->controller_state;
+ bits = (asd->csr >> 4) & 0xf;
+ if (bits != xfer->bits_per_word - 8) {
+ dev_dbg(&spi->dev, "you can't yet change "
+ "bit_per_word in transfers\n");
+ return -ENOPROTOOPT;
+ }
+ }
+
/* FIXME implement these protocol options!! */
- if (xfer->bits_per_word || xfer->speed_hz) {
+ if (xfer->speed_hz) {
dev_dbg(&spi->dev, "no protocol options yet\n");
return -ENOPROTOOPT;
}