Even if CONFIG_DMA_ADDR_64BIT_T is enabled by the defconfig,
the feature is not getting selected.
Adding a string description in the Kconfig resolves this.

But not sure if this is the right way to fix this.

Signed-off-by: R Sricharan <[email protected]>
Cc: Catalin Marinas <[email protected]>
---
 arch/arm/mm/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 101b968..90c5ea4 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -601,7 +601,7 @@ config ARCH_PHYS_ADDR_T_64BIT
        def_bool ARM_LPAE
 
 config ARCH_DMA_ADDR_T_64BIT
-       bool
+       bool "64bit capable DMA device"
 
 config ARM_THUMB
        bool "Support Thumb user binaries"
-- 
1.7.9.5

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