[Blackfin] arch: Add dma_map_page and dma_unmap_page stub for MMC SPI compiling (9fcdc78c) · Commits · e / devices / android_kernel_fairphone_FP3

include/asm-blackfin/dma-mapping.h

+15 −0

Original line number	Diff line number	Diff line
		@@ -27,6 +27,14 @@ void dma_free_coherent(struct device dev, size_t size, void vaddr,
		extern dma_addr_t dma_map_single(struct device dev, void ptr, size_t size,
		enum dma_data_direction direction);

		static inline dma_addr_t
		dma_map_page(struct device dev, struct page page,
		unsigned long offset, size_t size,
		enum dma_data_direction dir)
		{
		return dma_map_single(dev, page_address(page) + offset, size, dir);
		}

		/*
		* Unmap a single streaming mode DMA translation. The dma_addr and size
		* must match what was provided for in a previous pci_map_single call. All
		@@ -38,6 +46,13 @@ extern dma_addr_t dma_map_single(struct device dev, void ptr, size_t size,
		extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
		enum dma_data_direction direction);

		static inline void
		dma_unmap_page(struct device *dev, dma_addr_t dma_addr, size_t size,
		enum dma_data_direction dir)
		{
		dma_unmap_single(dev, dma_addr, size, dir);
		}

		/*
		* Map a set of buffers described by scatterlist in streaming
		* mode for DMA. This is the scather-gather version of the