Previously we linked in the ISA DMA wrapper unconditionally.
As there are very few users of this, it's better to make it
conditional.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
 # Makefile for the SuperH DMA specific kernel interface routines under Linux.
 #
 
-obj-y                          += dma-api.o dma-isa.o
+obj-y                          += dma-api.o
+obj-$(CONFIG_ISA_DMA_API)      += dma-isa.o
 obj-$(CONFIG_SYSFS)            += dma-sysfs.o
 obj-$(CONFIG_SH_DMA)           += dma-sh.o
 obj-$(CONFIG_SH_DREAMCAST)     += dma-pvr2.o dma-g2.o
-