Dear Fabio,
On Thu, 25 Jun 2015 09:18:22 -0300
Fabio Estevam <festevam@xxxxxxxxx> wrote:
> On Thu, Jun 25, 2015 at 9:06 AM, Fabio Estevam <festevam@xxxxxxxxx> wrote:
> > Hi David,
> >
> > On Thu, Jun 25, 2015 at 8:56 AM, David Jander <david@xxxxxxxxxxx> wrote:
> >
> >> I am afraid this was a little too soon. There are still problems with DMA,
> >> even using the ROM firmware, it is just that the close() system call is
> >> not hanging anymore.
> >
> > Just to confirm: do you Philipp's patch applied?
> > 392bceedb107a3dc1d4287e63 ("serial: imx: Fix DMA handling for IDLE
> > condition aborts")
> >
> >> I am considering to propose reversal of '068500e serial: imx: initialized
> >> DMA w/o HW flow enabled', because I suspect that SDMA support in this
> >> driver is just broken. I base this conclusion on the following test
> >> results:
> >
> > Please prepare and submit a patch with the revert.
>
> BTW, Sebastian has initally proposed reverting such commit:
> http://lkml.iu.edu/hypermail/linux/kernel/1505.1/00085.html
>
> ,but then he confirmed that Phillip's patch fixed his issue.
Thanks for the link, but from what I can read, this definitely seems to be a
different issue. Besides, I do positively have Philipp's patch applied.
I am sending a revert commit right now... hang on.
Best regards,
--
David Jander
Protonic Holland.
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