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| author | Kishon Vijay Abraham I | 2015-02-23 18:39:56 +0530 |
|---|---|---|
| committer | Marek Vasut | 2015-04-14 05:48:09 +0200 |
| commit | 2f06693567e259321406822b343f8aa70857c7bb (patch) | |
| tree | 9b28785cd152468c11b1bf40441193ad27557ab6 | |
| parent | 027b6103cdb806fd6441c983e9dc4b2d1b7f7019 (diff) | |
arm: asm: dma-mapping: added dma_free_coherent API
Added dma_free_coherent corresponding to the dma_alloc_coherent in
dma-mapping.h in order to free memory allocated using dma_alloc_coherent.
This API is used in dwc3 driver.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
| -rw-r--r-- | arch/arm/include/asm/dma-mapping.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 14f00efd2b8..a5821f54e56 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -8,6 +8,8 @@ #ifndef __ASM_ARM_DMA_MAPPING_H #define __ASM_ARM_DMA_MAPPING_H +#define dma_mapping_error(x, y) 0 + enum dma_data_direction { DMA_BIDIRECTIONAL = 0, DMA_TO_DEVICE = 1, @@ -20,6 +22,11 @@ static inline void *dma_alloc_coherent(size_t len, unsigned long *handle) return (void *)*handle; } +static inline void dma_free_coherent(void *addr) +{ + free(addr); +} + static inline unsigned long dma_map_single(volatile void *vaddr, size_t len, enum dma_data_direction dir) { |