spi: davinci: add support for interrupt mode

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Add support for SPI interrupt mode operation.

Define a per chip-select "io type" variable which
specifies if the transfers on this chip-select should
happen in interrupt mode or polled mode.

Introduce a new function davinci_spi_process_events()
to help consolidate the code between interrupt mode
processing and polled mode processing.

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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This commit is contained in:

Brian Niebuhr 2010-09-02 16:52:06 +05:30 • committed by Sekhar Nori

parent 839c996ca8

commit e0d205e991

2 changed files with 119 additions and 30 deletions

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4

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

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145

drivers/spi/davinci_spi.c

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