Messages in this thread | | | Date | Wed, 10 Feb 2021 15:38:08 +0000 | From | Mark Brown <> | Subject | Re: [PATCH v2 2/7] ASoC: fsl_rpmsg: Add CPU DAI driver for audio base on rpmsg |
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On Wed, Feb 10, 2021 at 02:35:29PM +0800, Shengjiu Wang wrote: > On Wed, Feb 10, 2021 at 6:30 AM Mark Brown <broonie@kernel.org> wrote:
> > Like I say I'd actually recommend moving this control to DAPM.
> I may understand your point, you suggest to use the .set_bias_level > interface. But in my case I need to enable the clock in earlier stage > and keep the clock on when system go to suspend.
The device can be kept alive over system suspend if that's needed, or possibly it sounds like runtime PM is a better fit? There's callbacks in the core to keep the device runtime PM enabled while it's open which is probably about the time range you're looking for.
> I am not sure .set_bias_level can met my requirement. we start > the Chinese new year holiday now, so currently I can't do test for this > recommendation.
> Maybe we can keep current implementation, can we? > Later after I do the test, I can submit another patch for it.
Well, the current version is clearly going to leak clock enables with valid userspace so [unhandled content-type:application/pgp-signature] | |