From: CMY <cmy@rock-chips.com>
Date: Fri, 23 May 2014 10:25:30 +0000 (+0800)
Subject: rk: ion: resolve sg table alloc failed when iommu has enable
X-Git-Tag: firefly_0821_release~5233
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d5479ef94730a2898ac0ae3dcf7518448eaa401e;p=firefly-linux-kernel-4.4.55.git

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

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 262c36efda41..d86fcf08c103 100755
--- 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