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SubjectRe: [PATCH] ASoC: fsl_esai: Add pm runtime function
On Thu, Apr 18, 2019 at 02:00:12AM -0700, Nicolin Chen wrote:
> On Thu, Apr 18, 2019 at 03:29:09AM +0000, S.j. Wang wrote:

> > In imx8 when systerm enter suspend state, the power of subsystem will
> > be off, the clock enable state will be lost and register configuration

> Just for curiosity, we had similar situation on imx6sx, so we
> added suspend/resume with regcache. Why will the clock enable
> state be lost too? Does CCM on imx8 (might not be called CCM
> though) have any difference? What about clock rate settings?

That sounds like a bug somewhere else - I'd expect that after resume the
clocking would be restored to the state it was in before suspend.
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