[alsa-devel] [PATCH v2 05/10] ASoC: Add support for dummy DAI links and PCM runtimes

[Mark Brown]

On Mon, Aug 17, 2015 at 10:01:16AM +0000, Lin, Mengdong wrote:

> These *dummy* links are not place holders of real physical links. 
> So they cannot come from ACPI but from topology.

OK, so this is something that should have been apparent from the
changelog and if that's what's supposed to happen that shouldn be what
the code does - it needs to be limited to these software only links.

But honestly this just doesn't seem like the ideal design - what this
means is that we're going to need to have a dummy link in place for any
link that is defined by the topology which means that we've got a hard
coded limit in the drivers for this dynamically defined thing from the
firmware.  It'd be much nicer if we just created the links from scratch
when we detect them in firmware rather than requiring these stubs.
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