spi: davinci: let DMA operation be specified on per-device basis
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>
diff --git a/arch/arm/mach-davinci/include/mach/spi.h b/arch/arm/mach-davinci/include/mach/spi.h
index f7586a0..b3ab7d0 100644
--- a/arch/arm/mach-davinci/include/mach/spi.h
+++ b/arch/arm/mach-davinci/include/mach/spi.h
@@ -41,6 +41,7 @@
u8 parity_enable;
#define SPI_IO_TYPE_INTR 0
#define SPI_IO_TYPE_POLL 1
+#define SPI_IO_TYPE_DMA 2
u8 io_type;
u8 timer_disable;
u8 c2tdelay;