linux-kernel - Re: [PATCH v2 2/2] regulator: core: Replace direct ops->disable usage

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Message-ID: <20140220130108.GD21048@pengutronix.de>
Date:	Thu, 20 Feb 2014 14:01:08 +0100
From:	Markus Pargmann <mpa@...gutronix.de>
To:	Mark Brown <broonie@...nel.org>
Cc:	Liam Girdwood <lgirdwood@...il.com>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, kernel@...gutronix.de,
	stable@...r.kernel.org
Subject: Re: [PATCH v2 2/2] regulator: core: Replace direct ops->disable usage

On Thu, Feb 20, 2014 at 09:51:30PM +0900, Mark Brown wrote:
> On Thu, Feb 20, 2014 at 12:07:52PM +0100, Markus Pargmann wrote:
> 
> > --- a/drivers/regulator/core.c
> > +++ b/drivers/regulator/core.c
> > @@ -1908,8 +1908,6 @@ static int _regulator_do_disable(struct regulator_dev *rdev)
> >  
> >  	trace_regulator_disable_complete(rdev_get_name(rdev));
> >  
> > -	_notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE,
> > -			     NULL);
> >  	return 0;
> >  }
> >  
> > @@ -1933,6 +1931,8 @@ static int _regulator_disable(struct regulator_dev *rdev)
> >  				rdev_err(rdev, "failed to disable\n");
> >  				return ret;
> >  			}
> > +			_notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE,
> > +					NULL);
> >  		}
> >  
> >  		rdev->use_count = 0;
> 
> This change doesn't seem obviously related?

I am using this function from _regulator_force_disable(), which calls
_notifier_call_chain() with one additional flag
"REGULATOR_EVENT_FORCE_DISABLE". To prevent calling
_notifier_call_chain() twice for the force_disable case, I moved that
function call out of _regulator_do_disable().

Regards,

Markus

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