linux-kernel - Re: [PATCH v3 1/5] mfd: mt6397: create irq mappings in mfd core driver

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Date:   Fri, 25 Aug 2017 10:39:29 +0200
From:   Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:     Chen Zhong <chen.zhong@...iatek.com>
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Lee Jones <lee.jones@...aro.org>,
        Eddie Huang <eddie.huang@...iatek.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Andi Shyti <andi.shyti@...sung.com>,
        Javier Martinez Canillas <javier@....samsung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Jaechul Lee <jcsing.lee@...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 v3 1/5] mfd: mt6397: create irq mappings in mfd core
 driver

On 25/08/2017 at 14:32:29 +0800, Chen Zhong wrote:
> The core driver should create and manage irq mappings instead of
> leaf drivers. This patch change to pass irq domain to
> devm_mfd_add_devices() and it will create mapping for irq resources
> automatically. And remove irq mapping in rtc driver since this has
> been done in core driver.
> 
> Acked-for-MFD-by: Lee Jones <lee.jones@...aro.org>
> Signed-off-by: Chen Zhong <chen.zhong@...iatek.com>
Acked-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>

> ---
>  drivers/mfd/mt6397-core.c |    4 ++--
>  drivers/rtc/rtc-mt6397.c  |    7 +++----
>  2 files changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
> index 04a601f..6546d7f 100644
> --- a/drivers/mfd/mt6397-core.c
> +++ b/drivers/mfd/mt6397-core.c
> @@ -289,7 +289,7 @@ static int mt6397_probe(struct platform_device *pdev)
>  
>  		ret = devm_mfd_add_devices(&pdev->dev, -1, mt6323_devs,
>  					   ARRAY_SIZE(mt6323_devs), NULL,
> -					   0, NULL);
> +					   0, pmic->irq_domain);
>  		break;
>  
>  	case MT6397_CID_CODE:
> @@ -304,7 +304,7 @@ static int mt6397_probe(struct platform_device *pdev)
>  
>  		ret = devm_mfd_add_devices(&pdev->dev, -1, mt6397_devs,
>  					   ARRAY_SIZE(mt6397_devs), NULL,
> -					   0, NULL);
> +					   0, pmic->irq_domain);
>  		break;
>  
>  	default:
> diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c
> index 1a61fa5..385f830 100644
> --- a/drivers/rtc/rtc-mt6397.c
> +++ b/drivers/rtc/rtc-mt6397.c
> @@ -322,10 +322,9 @@ static int mtk_rtc_probe(struct platform_device *pdev)
>  	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>  	rtc->addr_base = res->start;
>  
> -	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
> -	rtc->irq = irq_create_mapping(mt6397_chip->irq_domain, res->start);
> -	if (rtc->irq <= 0)
> -		return -EINVAL;
> +	rtc->irq = platform_get_irq(pdev, 0);
> +	if (rtc->irq < 0)
> +		return rtc->irq;
>  
>  	rtc->regmap = mt6397_chip->regmap;
>  	rtc->dev = &pdev->dev;
> -- 
> 1.7.9.5
> 

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com