linux-kernel - Re: [PATCH] mfd: sec-irq: fix support for devices without irq specified

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Date:	Fri, 08 Aug 2014 09:34:34 +0200
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc:	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	Sangbeom Kim <sbkim73@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH] mfd: sec-irq: fix support for devices without irq specified

On czw, 2014-08-07 at 18:48 +0200, Bartlomiej Zolnierkiewicz wrote:
> [ added missing linux-samsung-soc ML, sorry for the noise ]
> 
> On Thursday, August 07, 2014 06:42:28 PM Bartlomiej Zolnierkiewicz wrote:
> > Add missing check for the case of device without irq specified
> > in sec_irq_exit() (please note that sec_irq_init() already
> > correctly handles such devices).
> > 
> > This is needed for Insignal's Exynos4412 based Origen board.
> > 
> > Cc: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> > Cc: Sangbeom Kim <sbkim73@...sung.com>
> > Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
> > Acked-by: Kyungmin Park <kyungmin.park@...sung.com>
> > ---
> > patch is against next-20140804 branch of linux-next kernel
> > 
> >  drivers/mfd/sec-irq.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)

Looks and works good (tested on board with S2MPS14).

Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>

Best regards,
Krzysztof

> > 
> > diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c
> > index f9a5786..b65a7f0 100644
> > --- a/drivers/mfd/sec-irq.c
> > +++ b/drivers/mfd/sec-irq.c
> > @@ -478,5 +478,6 @@ int sec_irq_init(struct sec_pmic_dev *sec_pmic)
> >  
> >  void sec_irq_exit(struct sec_pmic_dev *sec_pmic)
> >  {
> > -	regmap_del_irq_chip(sec_pmic->irq, sec_pmic->irq_data);
> > +	if (sec_pmic->irq)
> > +		regmap_del_irq_chip(sec_pmic->irq, sec_pmic->irq_data);
> >  }

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