On Tue, Feb 09, 2021 at 05:16:16PM +0800, Shengjiu Wang wrote:

On Mon, Feb 8, 2021 at 7:53 PM Mark Brown [off-list ref] wrote:

quoted

hw_params() can be called multiple times and there's no need for it to
be balanced with hw_free(), I'd move this to a different callback (DAPM
should work well).

Which callback should I use? Is there an example?

Like I say I'd actually recommend moving this control to DAPM.