linux-kernel - Re: [PATCH v2 5/5] mfd: mt6397: Add PMIC keys support to MT6397 driver

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Date:   Fri, 11 Aug 2017 15:18:28 +0800
From:   Chen Zhong <chen.zhong@...iatek.com>
To:     Lee Jones <lee.jones@...aro.org>
CC:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Eddie Huang <eddie.huang@...iatek.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Jaechul Lee <jcsing.lee@...sung.com>,
        Jonathan Cameron <jic23@...nel.org>,
        "Javier Martinez Canillas" <javier@....samsung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Beomho Seo <beomho.seo@...sung.com>,
        <linux-input@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-rtc@...r.kernel.org>
Subject: Re: [PATCH v2 5/5] mfd: mt6397: Add PMIC keys support to MT6397
 driver

On Tue, 2017-08-08 at 12:15 +0100, Lee Jones wrote:
> On Mon, 07 Aug 2017, Chen Zhong wrote:
> 
> > This patch adds compatible strings and interrupts for pmic keys
> > which serves as child device of MFD.
> > 
> > Signed-off-by: Chen Zhong <chen.zhong@...iatek.com>
> > ---
> >  drivers/mfd/mt6397-core.c |   36 +++++++++++++++++++++++++++++++++++-
> >  1 file changed, 35 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
> > index 6546d7f..3c6a765 100644
> > --- a/drivers/mfd/mt6397-core.c
> > +++ b/drivers/mfd/mt6397-core.c
> > @@ -43,6 +43,30 @@
> >  	},
> >  };
> >  
> > +static const struct resource mt6323_keys_resources[] = {
> > +	{
> > +		.start = MT6323_IRQ_STATUS_PWRKEY,
> > +		.end   = MT6323_IRQ_STATUS_PWRKEY,
> > +		.flags = IORESOURCE_IRQ,
> > +	}, {
> > +		.start = MT6323_IRQ_STATUS_FCHRKEY,
> > +		.end   = MT6323_IRQ_STATUS_FCHRKEY,
> > +		.flags = IORESOURCE_IRQ,
> > +	},
> > +};
> > +
> > +static const struct resource mt6397_keys_resources[] = {
> > +	{
> > +		.start = MT6397_IRQ_PWRKEY,
> > +		.end   = MT6397_IRQ_PWRKEY,
> > +		.flags = IORESOURCE_IRQ,
> > +	}, {
> > +		.start = MT6397_IRQ_HOMEKEY,
> > +		.end   = MT6397_IRQ_HOMEKEY,
> > +		.flags = IORESOURCE_IRQ,
> > +	},
> > +};
> 
> We have better ways to define these now.
> 
> Please grep for "DEFINE_RES_"

I'll define these with "DEFINE_RES_IRQ" here, Thank you for your
suggestion.

> 
> >  static const struct mfd_cell mt6323_devs[] = {
> >  	{
> >  		.name = "mt6323-regulator",
> > @@ -50,6 +74,11 @@
> >  	}, {
> >  		.name = "mt6323-led",
> >  		.of_compatible = "mediatek,mt6323-led"
> > +	}, {
> > +		.name = "mtk-pmic-keys",
> > +		.num_resources = ARRAY_SIZE(mt6323_keys_resources),
> > +		.resources = mt6323_keys_resources,
> > +		.of_compatible = "mediatek,mt6323-keys"
> >  	},
> >  };
> >  
> > @@ -71,7 +100,12 @@
> >  	}, {
> >  		.name = "mt6397-pinctrl",
> >  		.of_compatible = "mediatek,mt6397-pinctrl",
> > -	},
> > +	}, {
> > +		.name = "mtk-pmic-keys",
> > +		.num_resources = ARRAY_SIZE(mt6397_keys_resources),
> > +		.resources = mt6397_keys_resources,
> > +		.of_compatible = "mediatek,mt6397-keys"
> > +	}
> >  };
> >  
> >  static void mt6397_irq_lock(struct irq_data *data)
>