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SubjectRe: [PATCH v3 2/8] dma-mapping: add {map,unmap}_resource to dma_map_ops
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Hi Niklas,

Thank you for the patch.

On Wednesday 10 February 2016 01:57:52 Niklas Söderlund wrote:
> Add methods to handle mapping of device resources from a physical
> address. This is needed for example to map be able to map MMIO FIFO
> registers to a IOMMU.
>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

Apart from the typo in the commit message that Sergei already pointed out,

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
> include/linux/dma-mapping.h | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
> index 75857cd..e3aba4e 100644
> --- a/include/linux/dma-mapping.h
> +++ b/include/linux/dma-mapping.h
> @@ -49,6 +49,12 @@ struct dma_map_ops {
> struct scatterlist *sg, int nents,
> enum dma_data_direction dir,
> struct dma_attrs *attrs);
> + dma_addr_t (*map_resource)(struct device *dev, phys_addr_t phys_addr,
> + size_t size, enum dma_data_direction dir,
> + struct dma_attrs *attrs);
> + void (*unmap_resource)(struct device *dev, dma_addr_t dma_handle,
> + size_t size, enum dma_data_direction dir,
> + struct dma_attrs *attrs);
> void (*sync_single_for_cpu)(struct device *dev,
> dma_addr_t dma_handle, size_t size,
> enum dma_data_direction dir);

--
Regards,

Laurent Pinchart

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