spi: davinci: let DMA operation be specified on per-device basis

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Let DMA operation be specified on a per-device basis instead
of selecting it once during probe.

A side effect of this is the need to combine the PIO and DMA buffer
txrx_bufs routine. This is good since they anyway share some common
functionality.

Signed-off-by: Brian Niebuhr <bniebuhr@efjohnson.com>
Tested-By: Michael Williamson <michael.williamson@criticallink.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

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Brian Niebuhr 2010-10-06 17:03:10 +05:30 • committed by Sekhar Nori

parent 6dbd29b27b

commit 87467bd905

2 changed files with 156 additions and 187 deletions

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1

arch/arm/mach-davinci/include/mach/spi.h

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342

drivers/spi/davinci_spi.c

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