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spi_mpc83xx: fix QE+LSB mode shifts 

spi_mpc83xx should use other shifts when running in QE+LSB mode.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Anton Vorontsov 2007-07-31 00:38:42 -07:00 committed by Linus Torvalds
parent 32421daaf8
commit 35cc0b9750
1 changed files with 8 additions and 0 deletions
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8
drivers/spi/spi_mpc83xx.c
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@ -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;