[PATCH v2 04/23] ARM: LPC32xx: Add DMA configuration to platform data

On Wednesday 11 July 2012, Roland Stigge wrote:

Thanks for the note! Looks like the interface consolidated to replace
ch->cd->min_signal with sth. like cd->min_signal directly.

Accessing the signal id/number is/was quite convenient because as you
can see in the 3 above cases that now get compile errors with the pl08x
changes, the LPC32xx chip hard-wires those numbers, and the respective
code is LPC32xx specific anyway.

So can we make an exception here to compare static dma channel numbers?
Or is there any other interface to access the static dma channel numbers
that I'm currently not aware of?

Depending on what we agree upon, I can then provide fixes to the
lpc32xx-next branch.

I'm not familiar with this code, but I think the solution for now
(while we don't have a DT binding) is to do the same thing that
spear3xx does: pass a pointer to the global pl08x_filter_id
function and an identifier for the channel in the platform data
for that device.

	Arnd