spi_mpc83xx: remove dead code

This patch removes #if 0'ed code, and spi_mpc83xx->busy variable that is
used by that dead snippet only.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 17 deletions

diff --git a/drivers/spi/spi_mpc83xx.c b/drivers/spi/spi_mpc83xx.c
index e854ac0d413a..c5cb98f65454 100644
--- a/drivers/spi/spi_mpc83xx.c
+++ b/drivers/spi/spi_mpc83xx.c
@@ -98,8 +98,6 @@ struct mpc83xx_spi {
 
         bool qe_mode;
 
-        u8 busy;
-
         struct workqueue_struct *workqueue;
         struct work_struct work;
 
@@ -411,7 +409,6 @@ static void mpc83xx_spi_work(struct work_struct *work)
                                                        work);
 
         spin_lock_irq(&mpc83xx_spi->lock);
-        mpc83xx_spi->busy = 1;
         while (!list_empty(&mpc83xx_spi->queue)) {
                 struct spi_message *m = container_of(mpc83xx_spi->queue.next,
                                                    struct spi_message, queue);
@@ -423,7 +420,6 @@ static void mpc83xx_spi_work(struct work_struct *work)
 
                 spin_lock_irq(&mpc83xx_spi->lock);
         }
-        mpc83xx_spi->busy = 0;
         spin_unlock_irq(&mpc83xx_spi->lock);
 }
 
@@ -465,19 +461,6 @@ static int mpc83xx_spi_setup(struct spi_device *spi)
                 cs->hw_mode = hw_mode; /* Restore settings */
                 return retval;
         }
-
-#if 0 /* Don't think this is needed */
-        /* NOTE we _need_ to call chipselect() early, ideally with adapter
-         * setup, unless the hardware defaults cooperate to avoid confusion
-         * between normal (active low) and inverted chipselects.
-         */
-
-        /* deselect chip (low or high) */
-        spin_lock(&mpc83xx_spi->lock);
-        if (!mpc83xx_spi->busy)
-                mpc83xx_spi_chipselect(spi, BITBANG_CS_INACTIVE);
-        spin_unlock(&mpc83xx_spi->lock);
-#endif
         return 0;
 }