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

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Date:   Tue, 8 Aug 2017 12:15:56 +0100
From:   Lee Jones <lee.jones@...aro.org>
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>,
        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 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_"

>  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)

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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