staging: comedi: ni_at_a2150: remove VIRT_TO_BUS dependancy
Use dma_{alloc,free}_coherent() to allocate and free the DMA buffers.
This removes the dependancy on VIRT_TO_BUS.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index fe030a3..982b03f 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -462,7 +462,7 @@
config COMEDI_NI_AT_A2150
tristate "NI AT-A2150 ISA card support"
- depends on VIRT_TO_BUS && ISA_DMA_API
+ depends on ISA_DMA_API
---help---
Enable support for National Instruments AT-A2150 cards