linux-kernel - Re: [PATCH 1/2] mfd: arizona: Remove arizona_of_get_named

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Date:   Wed, 28 Sep 2016 00:59:37 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Cc:     rf@...nsource.wolfsonmicro.com, linux-kernel@...r.kernel.org,
        patches@...nsource.wolfsonmicro.com
Subject: Re: [PATCH 1/2] mfd: arizona: Remove arizona_of_get_named_gpio
 helper function

On Tue, 20 Sep 2016, Charles Keepax wrote:

> This function is only used in a single place and no new users will be
> added as all the devices other required GPIOs are already handled. As
> such just merge the code back into the calling function.
> 
> Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
> ---
>  drivers/mfd/arizona-core.c       | 27 +++++++--------------------
>  include/linux/mfd/arizona/core.h |  3 ---
>  2 files changed, 7 insertions(+), 23 deletions(-)
> 
> diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
> index 4c18c8e..f466f29 100644
> --- a/drivers/mfd/arizona-core.c
> +++ b/drivers/mfd/arizona-core.c
> @@ -803,25 +803,6 @@ unsigned long arizona_of_get_type(struct device *dev)
>  }
>  EXPORT_SYMBOL_GPL(arizona_of_get_type);
>  
> -int arizona_of_get_named_gpio(struct arizona *arizona, const char *prop,
> -			      bool mandatory)
> -{
> -	int gpio;
> -
> -	gpio = of_get_named_gpio(arizona->dev->of_node, prop, 0);
> -	if (gpio < 0) {
> -		if (mandatory)
> -			dev_err(arizona->dev,
> -				"Mandatory DT gpio %s missing/malformed: %d\n",
> -				prop, gpio);
> -
> -		gpio = 0;
> -	}
> -
> -	return gpio;
> -}
> -EXPORT_SYMBOL_GPL(arizona_of_get_named_gpio);
> -
>  static int arizona_of_get_core_pdata(struct arizona *arizona)
>  {
>  	struct arizona_pdata *pdata = &arizona->pdata;
> @@ -831,7 +812,13 @@ static int arizona_of_get_core_pdata(struct arizona *arizona)
>  	int ret, i;
>  	int count = 0;
>  
> -	pdata->reset = arizona_of_get_named_gpio(arizona, "wlf,reset", true);
> +	pdata->reset = of_get_named_gpio(arizona->dev->of_node, "wlf,reset", 0);
> +	if (pdata->reset < 0) {
> +		dev_err(arizona->dev, "Reset gpio missing/malformed: %d\n",

gpio should be GPIO.

I'll probably just fix this up myself though.

Applied, thanks.

> +			pdata->reset);
> +
> +		pdata->reset = 0;
> +	}
>  
>  	ret = of_property_read_u32_array(arizona->dev->of_node,
>  					 "wlf,gpio-defaults",
> diff --git a/include/linux/mfd/arizona/core.h b/include/linux/mfd/arizona/core.h
> index b9909bb..b31b3be 100644
> --- a/include/linux/mfd/arizona/core.h
> +++ b/include/linux/mfd/arizona/core.h
> @@ -191,7 +191,4 @@ int cs47l24_patch(struct arizona *arizona);
>  int wm8997_patch(struct arizona *arizona);
>  int wm8998_patch(struct arizona *arizona);
>  
> -extern int arizona_of_get_named_gpio(struct arizona *arizona, const char *prop,
> -				     bool mandatory);
> -
>  #endif

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