On 11-07-18, 08:16, Robin Gong wrote:
> > > The problem seems to be that we do not know whether we are doing
> > > memcpy or not. Normally we get the information how a channel is to be
> > > configured in dma_device->device_config, but this function is not
> > > called in the memcpy case.
> >
> >
t; ker...@pengutronix.de; dmaeng...@vger.kernel.org;
> linux-kernel@vger.kernel.org; dl-linux-imx
> Subject: Re: [PATCH v1 3/4] dmaengine: imx-sdma: support dmatest
>
> On 11-07-18, 08:53, s.ha...@pengutronix.de wrote:
> > On Wed, Jul 11, 2018 at 06:37:02AM +, Robin Gong
ng
> > > Cc: dan.j.willi...@intel.com; shawn...@kernel.org;
> > > s.ha...@pengutronix.de; Fabio Estevam ;
> > > li...@armlinux.org.uk; linux-arm-ker...@lists.infradead.org;
> > > ker...@pengutronix.de; dmaeng...@vger.kernel.org;
> > > linux-kernel@vger.kernel
.infradead.org;
> ker...@pengutronix.de; dmaeng...@vger.kernel.org;
> linux-kernel@vger.kernel.org; dl-linux-imx
> Subject: Re: [PATCH v1 3/4] dmaengine: imx-sdma: support dmatest
>
> On Wed, Jul 11, 2018 at 06:37:02AM +, Robin Gong wrote:
> >
> > > -Original Mess
@pengutronix.de; Fabio Estevam ;
> > li...@armlinux.org.uk; linux-arm-ker...@lists.infradead.org;
> > ker...@pengutronix.de; dmaeng...@vger.kernel.org;
> > linux-kernel@vger.kernel.org; dl-linux-imx
> > Subject: Re: [PATCH v1 3/4] dmaengine: imx-sdma: support dmatest
> >
>
t; ker...@pengutronix.de; dmaeng...@vger.kernel.org;
> linux-kernel@vger.kernel.org; dl-linux-imx
> Subject: Re: [PATCH v1 3/4] dmaengine: imx-sdma: support dmatest
>
> On 11-07-18, 00:23, Robin Gong wrote:
> > dmatest(memcpy) will never call dmaengine_slave_config before prep,
&g
On 11-07-18, 00:23, Robin Gong wrote:
> dmatest(memcpy) will never call dmaengine_slave_config before prep,
and that should have been a hint to you that you should not expect that
> so jobs in dmaengine_slave_config need to be moved into somewhere
> before device_prep_dma_memcpy. Besides, dmatest
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