MIPS: Remove unnecessary platform dma helper functions

The semantics stay the same - on Cavium Octeon the functions were dead
code (it overrides the MIPS DMA ops) - on other platforms they contained
no code at all.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5720/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 0 insertions, 11 deletions

diff --git a/arch/mips/include/asm/mach-ip32/dma-coherence.h b/arch/mips/include/asm/mach-ip32/dma-coherence.h
index 073f0c4760ba..104cfbc3ed63 100644
--- a/arch/mips/include/asm/mach-ip32/dma-coherence.h
+++ b/arch/mips/include/asm/mach-ip32/dma-coherence.h
@@ -80,17 +80,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
         return 1;
 }
 
-static inline void plat_extra_sync_for_device(struct device *dev)
-{
-        return;
-}
-
-static inline int plat_dma_mapping_error(struct device *dev,
-                                         dma_addr_t dma_addr)
-{
-        return 0;
-}
-
 static inline int plat_device_is_coherent(struct device *dev)
 {
         return 0;               /* IP32 is non-cohernet */