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 --- arch/arm/include/asm/dma-mapping.h | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 14f00efd2..a5821f5 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) {