rk: ion: resolve sg table alloc failed when iommu has enable

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 262c36efda41f6c94053c2bc86efae137174064a..d86fcf08c1033fcbe6d8b04384360acb975df9c5 100755 (executable)
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -131,6 +131,7 @@ config ROCKCHIP_IOMMU
        bool "Rockchip IOMMU Support"
        depends on ARCH_ROCKCHIP
        select IOMMU_API
+       select ARM_HAS_SG_CHAIN
        help
          Support for the IOMMU(System MMU) of Rockchip rk32xx application
          processor family. This enables H/W multimedia accellerators to see