Re: [RESEND PATCH] regulator: core: Disable unused regulators after deferred probing is done

From: Mark Brown
Date: Thu Apr 24 2014 - 09:35:17 EST


On Wed, Apr 23, 2014 at 06:10:50PM -0500, Nishanth Menon wrote:
> From: Saravana Kannan <skannan@xxxxxxxxxxxxxx>
>
> regulator_init_complete does a scan of regulators which dont have
> always-on or consumers are automatically disabled as being unused.
> However, with deferred probing, late_initcall() is too soon to
> declare a regulator as unused as the regulator itself might not
> have registered due to defferal - Example: A regulator deffered due
> to i2bus not available which in turn is deffered due to pinctrl
> availability.
>
> Since deferred probing is done in late_initcall(), do the cleanup of
> unused regulators by regulator_init_complete in late_initcall_sync
> instead of late_initcall.

I'll apply this however since as we discussed on IRC last night it's
going to make the issues with unconfigured regulators getting powered
off more severe before I do so I'll change things so that regulators
with no configuration at all don't get touched by the core.

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