TI DaVinci: Driver for the davinci SPI controller

From: Sekhar Nori <[email protected]>

This adds a driver for the SPI controller found on davinci based SoCs from Texas Instruments.

Signed-off-by Sekhar Nori <[email protected]>

Signed-off-by Sudhakar Rajashekhara <[email protected]>

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From the previous version, following are the modifications:
1. Argument to sizeof() changed in spi_setup_slave() function.
2. Check for NULL before calling free() is removed in spi_free_slave() function.
3. Check for NULL before calling container_of() function in SPI header file was removed.

 drivers/spi/Makefile      |    1 +
 drivers/spi/davinci_spi.c |  223 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/spi/davinci_spi.h |  102 +++++++++++++++++++++
 3 files changed, 326 insertions(+), 0 deletions(-)
 create mode 100644 drivers/spi/davinci_spi.c
 create mode 100644 drivers/spi/davinci_spi.h

drivers/spi/Makefile +0 -0

index 824d8e7..f112ed0 100644