spi_mpc83xx: fix QE+LSB mode shifts

spi_mpc83xx should use other shifts when running in QE+LSB mode.
Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/spi/spi_mpc83xx.c

@@ -237,6 +237,14 @@ int mpc83xx_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
 	} else
 		return -EINVAL;
 
+	if (mpc83xx_spi->qe_mode && spi->mode & SPI_LSB_FIRST) {
+		mpc83xx_spi->tx_shift = 0;
+		if (bits_per_word <= 8)
+			mpc83xx_spi->rx_shift = 8;
+		else
+			mpc83xx_spi->rx_shift = 0;
+	}
+
 	/* nsecs = (clock period)/2 */
 	if (!hz)
 		hz = spi->max_speed_hz;