[PATCH] ASoC: simple-card: Add dummy dai support simple sound card

[Mark Brown]

On Thu, Feb 25, 2021 at 08:08:32PM +0800, Shengjiu Wang wrote:

> If sound card doesn't need specific codec device, just
> dummy codec is enough, then we can link the dummy component
> directly.

This is a big red flag - what circumstances are these?  If it's a simple
CODEC with no control then the general approach is to provide a driver
which announces the capabilities of the CODEC and can be bound to as
normal, the dummy component should never actively be used.
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