[U-Boot] [u-boot 13/40] arm: asm: dma-mapping: added dma_free_coherent API

[Lukasz Majewski]

Hi Kishon,

> 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 at ti.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)
>  {

Reviewed-by: Lukasz Majewski <l.majewski at samsung.com>

-- 
Best regards,

Lukasz Majewski

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