Re: [PATCH 02/13] dmaengine: Introduce dma_request_slave_channel_compat_reason()

From: Peter Ujfalusi
Date: Fri Nov 20 2015 - 07:30:41 EST

On 11/20/2015 02:24 PM, Andy Shevchenko wrote:
> On Fri, Nov 20, 2015 at 12:58 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
>> On Friday 20 November 2015 12:25:06 Peter Ujfalusi wrote:
>>> On 11/19/2015 01:25 PM, Arnd Bergmann wrote:
>> Another idea would be to remove the filter function from struct dma_chan_map
>> and pass the map through platform data
> Why not unified device properties?

Is this some Windows/ACPI feature? Quick search gives mostly MSDN and
Windows10 related links.

We only need dma_chan_map for platforms which has not been converted to DT and
still using legacy boot. Or platforms which can still boot in legacy mode. In
DT/ACPI mode we do not need this map at all.

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