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authorFlorian Fainelli <f.fainelli@gmail.com>2015-04-07 22:34:01 +0200
committerRalf Baechle <ralf@linux-mips.org>2015-04-08 23:52:33 +0200
commit68ba7cb083300409eb92282417db4c179081ade3 (patch)
tree9ba6369afa8edd301cce462d34bbd287e09e2c12 /arch/mips/include/asm/mach-generic
parentMIPS: BMIPS: Move post DMA flush implementation to common header (diff)
downloadlinux-68ba7cb083300409eb92282417db4c179081ade3.tar.xz
linux-68ba7cb083300409eb92282417db4c179081ade3.zip
MIPS: DMA: Allow platforms to override only the post DMA hook
Instead of having platforms to copy the entirety of mach-generic/dma-coherence.h, check whether these platforms have already defined a plat_post_dma_flush hook, and if not, provide an inline stub. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Cc: cernekee@gmail.com Cc: jogo@openwrt.org Patchwork: https://patchwork.linux-mips.org/patch/9725/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/mach-generic')
-rw-r--r--arch/mips/include/asm/mach-generic/dma-coherence.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h
index 671330928e67..0f8a354fd468 100644
--- a/arch/mips/include/asm/mach-generic/dma-coherence.h
+++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
@@ -52,9 +52,11 @@ static inline int plat_device_is_coherent(struct device *dev)
return coherentio;
}
+#ifndef plat_post_dma_flush
static inline void plat_post_dma_flush(struct device *dev)
{
}
+#endif
#ifdef CONFIG_SWIOTLB
static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)