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