diff --git a/drivers/spi/spi_mpc83xx.c b/drivers/spi/spi_mpc83xx.c
index 0926a3e..ce61be9 100644
--- a/drivers/spi/spi_mpc83xx.c
+++ b/drivers/spi/spi_mpc83xx.c
@@ -419,10 +419,6 @@
 	spin_unlock_irq(&mpc83xx_spi->lock);
 }
 
-/* the spi->mode bits understood by this driver: */
-#define MODEBITS	(SPI_CPOL | SPI_CPHA | SPI_CS_HIGH \
-			| SPI_LSB_FIRST | SPI_LOOP)
-
 static int mpc83xx_spi_setup(struct spi_device *spi)
 {
 	struct mpc83xx_spi *mpc83xx_spi;
@@ -430,12 +426,6 @@
 	u32 hw_mode;
 	struct spi_mpc83xx_cs	*cs = spi->controller_state;
 
-	if (spi->mode & ~MODEBITS) {
-		dev_dbg(&spi->dev, "setup: unsupported mode bits %x\n",
-			spi->mode & ~MODEBITS);
-		return -EINVAL;
-	}
-
 	if (!spi->max_speed_hz)
 		return -EINVAL;
 
@@ -562,6 +552,10 @@
 
 	dev_set_drvdata(dev, master);
 
+	/* the spi->mode bits understood by this driver: */
+	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH
+			| SPI_LSB_FIRST | SPI_LOOP;
+
 	master->setup = mpc83xx_spi_setup;
 	master->transfer = mpc83xx_spi_transfer;
 	master->cleanup = mpc83xx_spi_cleanup;