On Mon, Jun 11, 2012 at 6:50 AM, Vinod Koul wrote:
> Do we have any users of peripheral to peripheral slave dma?
> IIRC that is not the case, or does anyone know of existence or plans
> for such a h/w?
The U300 (COH901318) device can do this.
The usecase is basically that the modem CPU sets up
On Mon, 2012-06-11 at 09:24 +0100, Russell King - ARM Linux wrote:
> On Mon, Jun 11, 2012 at 10:20:49AM +0530, Vinod Koul wrote:
> > I think it is a good idea. And I would like to extend it even a little
> > bit. Do we have any users of peripheral to peripheral slave dma?
> > IIRC that is not the
On Mon, 2012-06-11 at 17:33 +0800, Dong Aisheng wrote:
> > I think it is a good idea. And I would like to extend it even a
> little
> > bit. Do we have any users of peripheral to peripheral slave dma?
> Yes, IMX sdma does support such kind of transfer.
> The driver still does not support it current
On Mon, Jun 11, 2012 at 10:20:49AM +0530, Vinod Koul wrote:
> I think it is a good idea. And I would like to extend it even a little
> bit. Do we have any users of peripheral to peripheral slave dma?
> IIRC that is not the case, or does anyone know of existence or plans
> for such a h/w?
We have
On Mon, Jun 11, 2012 at 10:20:49AM +0530, Vinod Koul wrote:
> On Sun, 2012-06-10 at 12:22 +0100, Russell King - ARM Linux wrote:
> > On Sun, Jun 10, 2012 at 07:19:47PM +0800, Barry Song wrote:
> > > 2012/6/10 Russell King - ARM Linux :
> > > > Dan, Vinod,
> > > >
> > > > There's a change I would li
On Mon, Jun 11, 2012 at 10:20:49AM +0530, Vinod Koul wrote:
> I think it is a good idea. And I would like to extend it even a little
> bit. Do we have any users of peripheral to peripheral slave dma?
> IIRC that is not the case, or does anyone know of existence or plans
> for such a h/w?
>
> If n
On Sun, 2012-06-10 at 12:22 +0100, Russell King - ARM Linux wrote:
> On Sun, Jun 10, 2012 at 07:19:47PM +0800, Barry Song wrote:
> > 2012/6/10 Russell King - ARM Linux :
> > > Dan, Vinod,
> > >
> > > There's a change I would like to do to the DMA slave configuration.
> > > It's currently a pain to
On Sun, Jun 10, 2012 at 07:19:47PM +0800, Barry Song wrote:
> 2012/6/10 Russell King - ARM Linux :
> > Dan, Vinod,
> >
> > There's a change I would like to do to the DMA slave configuration.
> > It's currently a pain to have the source and destination parameters in
> > the dma_slave_config structur
2012/6/10 Russell King - ARM Linux :
> Dan, Vinod,
>
> There's a change I would like to do to the DMA slave configuration.
> It's currently a pain to have the source and destination parameters in
> the dma_slave_config structure as separate elements; it means when you
> want to extract them, you en
Dan, Vinod,
There's a change I would like to do to the DMA slave configuration.
It's currently a pain to have the source and destination parameters in
the dma_slave_config structure as separate elements; it means when you
want to extract them, you end up with code in DMA engine drivers like:
+
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