From: Hiroshi Doyu <hdoyu@nvidia.com>
Date: Thu, 24 Jan 2013 13:16:56 +0000 (+0200)
Subject: ARM: dma-mapping: Add macro to_dma_iommu_mapping()
X-Git-Tag: next-20130218~11^2~6
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e25549bc6a3999afe92fd89030942cc6552679ae;p=karo-tx-linux.git

ARM: dma-mapping: Add macro to_dma_iommu_mapping()

This can be built without CONFIG_ARM_DMA_USE_IOMMU.

Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---

diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index b69c0d3285f8..dc662fca9230 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -27,4 +27,10 @@ struct pdev_archdata {
 #endif
 };
 
+#ifdef CONFIG_ARM_DMA_USE_IOMMU
+#define to_dma_iommu_mapping(dev) ((dev)->archdata.mapping)
+#else
+#define to_dma_iommu_mapping(dev) NULL
+#endif
+
 #endif