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Re: [PATCH] dmaengine: omap-dma: Add support for memcpy

From Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Newsgroups linux.kernel
Subject Re: [PATCH] dmaengine: omap-dma: Add support for memcpy
Date 2015-09-08 13:30 +0200
Message-ID <q6pg6-2No-11@gated-at.bofh.it> (permalink)
References <phXqh-1tS-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi Peter,

Thank you for the patch.

While trying to port the omap_vout driver to the DMA engine API I noticed that 
the driver makes use of double-indexed transfers, which are not supported by 
the omap-dma driver. I haven't checked in details what would be required, but 
the interleaved API might be a good candidate for this. Do you have any plan 
to add support for double-indexed transfers to the omap-dma driver ?

On Wednesday 22 April 2015 10:34:29 Peter Ujfalusi wrote:
> The sDMA controller is capable of performing memory copy operation. It need
> to be configured to software triggered mode and without HW synchronization.
> The sDMA can copy data which is aligned to 8, 16 or 32 bits.
> 
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
> ---
>  drivers/dma/omap-dma.c | 51 +++++++++++++++++++++++++++++++++++++++++++++--
>  1 file changed, 49 insertions(+), 2 deletions(-)

-- 
Regards,

Laurent Pinchart

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Re: [PATCH] dmaengine: omap-dma: Add support for memcpy Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2015-09-08 13:30 +0200
  Re: [PATCH] dmaengine: omap-dma: Add support for memcpy Peter Ujfalusi <peter.ujfalusi@ti.com> - 2015-09-08 14:30 +0200

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