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MIPS: DMA: Allow platforms to override only the post DMA hook

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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>
This commit is contained in:
Florian Fainelli 2015-04-07 13:34:01 -07:00 committed by Ralf Baechle
parent 36fe976358
commit 68ba7cb083
1 changed files with 2 additions and 0 deletions
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2
arch/mips/include/asm/mach-generic/dma-coherence.h
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@ -52,9 +52,11 @@ static inline int plat_device_is_coherent(struct device *dev)
return coherentio; return coherentio;
} }
#ifndef plat_post_dma_flush
static inline void plat_post_dma_flush(struct device *dev) static inline void plat_post_dma_flush(struct device *dev)
{ {
} }
#endif
#ifdef CONFIG_SWIOTLB #ifdef CONFIG_SWIOTLB
static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)