Re: dmaengine: dw-dmac: Custom cyclic API (Why?)

From	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups	linux.kernel
Subject	Re: dmaengine: dw-dmac: Custom cyclic API (Why?)
Date	2017-01-02 12:40 +0100
Message-ID	<sV985-6ct-9@gated-at.bofh.it> (permalink)
References	<sU3Hs-3Ks-23@gated-at.bofh.it> <sU4at-4aa-9@gated-at.bofh.it> <sV6jU-4bE-9@gated-at.bofh.it> <sV7SF-5kc-13@gated-at.bofh.it>
Organization	Intel Finland Oy

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On Mon, 2017-01-02 at 15:48 +0530, Vinod Koul wrote:
> On Mon, Jan 02, 2017 at 10:38:00AM +0200, Andy Shevchenko wrote:
> > On Fri, 2016-12-30 at 12:05 +0000, Jose Abreu wrote:
> > > ++dw-dmac Maintainers

> > I used to have some semi-finished patch to switch to generic API,
> > though
> > at that point I had no means to test it.
> > 
> > Since I eventually got iDMA 32-bit, which is used as LPE Audio DMA
> > engine, support in my branch I might test it in the future, though I
> > think someone else would be much faster than me.
> 
> no we can't, since the DSP is involved and takes control, so unless we
> do
> lots of nasty hacks, it won't be testable. I don't see the ROI for
> such an
> effort.

Thanks for clarification

> btw, feel free to test and send patches if you have such a h/w

Actually we have AVR32 connected to our lab. So, I can test it there,
but I rather need a patch to use some dummy stub instead of codec (it
has no codec connected).

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

Thread

dmaengine: dw-dmac: Custom cyclic API (Why?) Jose Abreu <Jose.Abreu@synopsys.com> - 2016-12-30 12:40 +0100
  Re: dmaengine: dw-dmac: Custom cyclic API (Why?) Jose Abreu <Jose.Abreu@synopsys.com> - 2016-12-30 13:10 +0100
    Re: dmaengine: dw-dmac: Custom cyclic API (Why?) Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2017-01-02 09:40 +0100
      Re: dmaengine: dw-dmac: Custom cyclic API (Why?) Vinod Koul <vinod.koul@intel.com> - 2017-01-02 11:20 +0100
        Re: dmaengine: dw-dmac: Custom cyclic API (Why?) Viresh Kumar <viresh.kumar@linaro.org> - 2017-01-02 12:00 +0100
        Re: dmaengine: dw-dmac: Custom cyclic API (Why?) Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2017-01-02 12:40 +0100
          Re: dmaengine: dw-dmac: Custom cyclic API (Why?) Jose Abreu <Jose.Abreu@synopsys.com> - 2017-01-02 15:00 +0100

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