linux-kernel - Re: [PATCH v2 1/4] i2c: designware-platdrv: enable RuntimePM before registering to the core

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Date:	Thu, 15 Oct 2015 15:27:37 +0300
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	Wolfram Sang <wsa@...-dreams.de>
Cc:	linux-sh@...r.kernel.org, linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/4] i2c: designware-platdrv: enable RuntimePM before
 registering to the core

On Thu, Oct 15, 2015 at 01:49:25PM +0200, Wolfram Sang wrote:
> On Fri, Oct 09, 2015 at 10:39:24AM +0100, Wolfram Sang wrote:
> > From: Wolfram Sang <wsa+renesas@...g-engineering.com>
> > 
> > The core may register clients attached to this master which may use
> > funtionality from the master. So, RuntimePM must be enabled before, otherwise
> > this will fail.
> > 
> > Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
> 
> No feedback here, but for the other two drivers the same principle was
> acked. CCing Mika, just in case.

Looks good to me :-)

> 
> Applied to for-current, thanks!
> 
> > ---
> >  drivers/i2c/busses/i2c-designware-platdrv.c | 13 +++++++------
> >  1 file changed, 7 insertions(+), 6 deletions(-)
> > 
> > diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
> > index 3dd2de31a2f8d3..73d58415bbc100 100644
> > --- a/drivers/i2c/busses/i2c-designware-platdrv.c
> > +++ b/drivers/i2c/busses/i2c-designware-platdrv.c
> > @@ -253,12 +253,6 @@ static int dw_i2c_probe(struct platform_device *pdev)
> >  	adap->dev.parent = &pdev->dev;
> >  	adap->dev.of_node = pdev->dev.of_node;
> >  
> > -	r = i2c_add_numbered_adapter(adap);
> > -	if (r) {
> > -		dev_err(&pdev->dev, "failure adding adapter\n");
> > -		return r;
> > -	}
> > -
> >  	if (dev->pm_runtime_disabled) {
> >  		pm_runtime_forbid(&pdev->dev);
> >  	} else {
> > @@ -268,6 +262,13 @@ static int dw_i2c_probe(struct platform_device *pdev)
> >  		pm_runtime_enable(&pdev->dev);
> >  	}
> >  
> > +	r = i2c_add_numbered_adapter(adap);
> > +	if (r) {
> > +		dev_err(&pdev->dev, "failure adding adapter\n");
> > +		pm_runtime_disable(&pdev->dev);
> > +		return r;
> > +	}
> > +
> >  	return 0;
> >  }
> >  
> > -- 
> > 2.1.4
> > 


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