Re: [PATCH] regulator: core: Fix enable GPIO reference counting

[Mark Brown]

On Tue, Mar 03, 2015 at 03:21:21PM -0800, Doug Anderson wrote:

> It looks as if "ena_gpio_state" is not quite what I thought it was and
> I think is not actually consistent in the regulator framework itself.
> In _regulator_do_enable() and _regulator_do_disable() is clear that
> ena_gpio_state is 1 when an "rdev" is enabled and 0 when the "rdev" is
> disabled.  That was my assumption.  It's also clear in
> _regulator_is_enabled().

> ...but then I looked in regulator_register().  There you can see that
> ena_gpio_state could be set to 1 if you've got an active low GPIO that
> is disabled at boot.  That totally throws my logic for a loop.  Also
> with my patch the reference counting will be all messed up for active
> high / boot on regulators.  :(

Isn't that just a bug in the registration code?  I'd not be entirely
surprised if that were the case.

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