[PATCH] mips: fix coherency configuration

Fix the MIPS coherency configuration such that we always keep the mapping
state in <asm/pci.h> when we need to on non-coherent platforms.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/mips/configs/it8172_defconfig b/arch/mips/configs/it8172_defconfig
index 09c83a0..08bd3ad 100644
--- a/arch/mips/configs/it8172_defconfig
+++ b/arch/mips/configs/it8172_defconfig
@@ -90,6 +90,7 @@
 CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_HAVE_DEC_LOCK=y
 CONFIG_DMA_NONCOHERENT=y
+CONFIG_DMA_NEED_PCI_MAP_STATE=y
 CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_ITE_BOARD_GEN=y
 CONFIG_IT8172_CIR=y