Messages in this thread | | | Date | Tue, 9 Apr 2024 20:15:57 +0300 | From | Andy Shevchenko <> | Subject | Re: [PATCH v1 1/1] platform/x86/intel: atomisp2: Replace deprecated UNIVERSAL_DEV_PM_OPS() |
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On Mon, Apr 08, 2024 at 06:20:03PM +0200, Hans de Goede wrote: > On 4/3/24 12:55 PM, Andy Shevchenko wrote:
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> As mentioned in the description of DEFINE_RUNTIME_DEV_PM_OPS() > DEFINE_RUNTIME_DEV_PM_OPS() is NOT a 1:1 replacement for > UNIVERSAL_DEV_PM_OPS() specifically it uses pm_runtime_force_suspend() / > pm_runtime_force_resume() .
Right.
> Specifically pm_runtime_force_suspend() may NOT get set (and in this case > will not set) needs_force_resume skipping a resume + suspend cycle > after a system suspend, which is a problem if firmware has touched > the state of the device during the suspend/resume cycle since the device > may now actually be left powered on.
I see, thanks for explaining me this. So this driver is kinda very special. Still the old question, can we get rid altogether of these atomisp "drivers" in PDx86?
> It seems there is no direct replacement for UNIVERSAL_DEV_PM_OPS() > without a behavior change.
Correct.
..
Btw, have you seen a few cleanup patches against AtomISP v2 by me?
-- With Best Regards, Andy Shevchenko
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