[PATCH v3 6/7] ARM: dma: implement set_arch_dma_coherent_ops()

Santosh Shilimkar santosh.shilimkar at ti.com
Thu Apr 24 08:30:06 PDT 2014

Implement the set_arch_dma_coherent_ops() for ARM architecture.

Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Cc: Russell King <linux at arm.linux.org.uk>
Cc: Arnd Bergmann <arnd at arndb.de>
Cc: Olof Johansson <olof at lixom.net>
Cc: Grant Likely <grant.likely at linaro.org>
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Catalin Marinas <catalin.marinas at arm.com>
Cc: Linus Walleij <linus.walleij at linaro.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko at ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar at ti.com>
 arch/arm/include/asm/dma-mapping.h |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 424fda9..1965cd8 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -118,6 +118,13 @@ static inline unsigned long dma_max_pfn(struct device *dev)
 #define dma_max_pfn(dev) dma_max_pfn(dev)
+static inline int set_arch_dma_coherent_ops(struct device *dev)
+	set_dma_ops(dev, &arm_coherent_dma_ops);
+	return 0;
+#define set_arch_dma_coherent_ops(dev)	set_arch_dma_coherent_ops(dev)
 static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
 	unsigned int offset = paddr & ~PAGE_MASK;

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