[PATCH] dmaengine: bcm2835: Add slave dma support

Noralf Trønnes noralf at tronnes.org
Fri Apr 17 10:20:50 PDT 2015

Hi Stefan,

Den 17.04.2015 19:08, skrev Stefan Wahren:
> Hi Noralf,
> Am 17.04.2015 um 00:09 schrieb Noralf Trønnes:
>> Den 15.04.2015 21:00, skrev Stefan Wahren:
>>> Hi Noralf,
>>> Am 15.04.2015 um 11:56 schrieb Noralf Trønnes:
>>>> Add slave transfer capability to BCM2835 dmaengine driver.
>>>> This patch is pulled from the bcm2708-dmaengine driver in the
>>>> Raspberry Pi repo. The work was done by Gellert Weisz.
>>>> Tested with the bcm2835-mmc driver from the same repo.
>>> why not with the upstream kernel?
>> See my answer to Alexander Stein.
> i read the mail, but i'm still confused. Please let me paraphrase my 
> last question:
> Is this patch testable with upstream kernel?

Sorry, I misread you.
This patch was made against mainline 4.0-rc7, not the Raspberry Pi repo.
I then used the bcm2835-mmc driver in mainline to be able to test the

> It would be helpful to put those facts from the email to Alexander into
> the patch description. Please clarify the intension of your patch.

 From my point of view, the mmc driver is a discussion of it's own.
This patch provides functionality that other drivers can make use of as 
Martin Sperl will soon start working on DMA support for spi-bcm2835,
relying on this patch to make that happen.


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