Re: [RFC PATCH 00/11] ARM: s3c64xx: Let amba-pl08x driver handle DMA

[Mark Brown <broonie@kernel.org>]

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On Wed, Jun 19, 2013 at 08:26:12PM +0200, Tomasz Figa wrote:
> On Wednesday 19 of June 2013 18:40:47 Mark Brown wrote:

> > -		ret = pd->get_signal(plchan->cd);
> > +		ret = (pd->get_signal)(plchan->cd);

> Hmm, that's strange. The former is a completely valid piece of code...

I know, hence...

> > to get it to build which makes me suspect the compiler a bit as well...

...my comment about suspecting the compiler.

> > I was applying this to -next, are there any other dependencies I need or
> > anything?

> Hmm, I've been testing this on top of my common clock framework and device 
> tree patches, but I don't think this had any effect. Did you add necessary 
> clkdev lookups to the clock driver?

No, I didn't - that's most likely it, I didn't really investigate.  I
didn't test the watchdog stuff as the clocks didn't get sent to me.

> In Samsung CCF alias notation it looks like this:

> +       ALIAS(HCLK_DMA1, "dma-pl080s.1", "apb_pclk"),
> +       ALIAS(HCLK_DMA0, "dma-pl080s.0", "apb_pclk"),

> Not sure how hard it will be to add such lookups to the old clock driver, 
> though.

It's pretty much the same providing you know which clock needs to be
used.

> I will test this applied directly on top of current linux-next when I find 
> some time, but for now you might check out my v3.11-devel branch on my 
> github:

> https://github.com/tom3q/linux.git

Will try to get round to it.

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