Re: [RFC PATCH v2 00/12] ARM: s3c64xx: Let amba-pl08x driver handle DMA

[Tomasz Figa]

On Tuesday 25 of June 2013 16:38:43 Mark Brown wrote:
> On Tue, Jun 25, 2013 at 01:22:20PM +0200, Tomasz Figa wrote:
> > On Tuesday 25 of June 2013 11:28:18 Mark Brown wrote:
> > > On my non-DT s3c64xx system I get this when trying to use SPI for the
> > 
> > > first time:
> > Could you clarify first time? Does it work on further retries?
> 
> No, the system appears to lock up fairly solidly - I suspect poor error
> handling in the SPI driver.
> 
> > > [    1.739385] s3c64xx-spi s3c6410-spi.0: Failed to get RX DMA
> > > channel
> > > [    1.743437] spi_master spi0: failed to prepare transfer hardware
> > > 
> > > though I haven't yet tried your clock patches (there were some
> > > conficts
> > > that I didn't get round to picking up yet).
> > 
> > This shouldn't really matter, as long as the pl080 drivers probes
> > correctly.
> 
> Indeed, I was wondering if it was failing to probe due to not getting
> its clocks though since that's another area you've been actively working
> on.

Let me check if I can get something with SPI interface that I would be able 
to connect to my board at home and do some testing.

Best regards,
Tomasz

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