linux-kernel - Re: [PATCH v1 1/1] pinctrl: intel: Move default strength assignment to a switch-case

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Message-ID: <20231101063548.GD17433@black.fi.intel.com>
Date:   Wed, 1 Nov 2023 08:35:48 +0200
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andy Shevchenko <andy@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH v1 1/1] pinctrl: intel: Move default strength assignment
 to a switch-case

On Mon, Oct 30, 2023 at 05:54:32PM +0200, Andy Shevchenko wrote:
> iWhen ->pin_config_set() is called from the GPIO library (assumed
> GpioIo() ACPI resource), the argument can be 1, when, for example,
> PullDefault is provided. In such case we supply sane default in
> the driver. Move that default assingment to a switch-case, so
> it will be consolidated in one place.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>  drivers/pinctrl/intel/pinctrl-intel.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
> index fb3e0e1e0a0e..3e8010607d32 100644
> --- a/drivers/pinctrl/intel/pinctrl-intel.c
> +++ b/drivers/pinctrl/intel/pinctrl-intel.c
> @@ -677,10 +677,6 @@ static int intel_config_set_pull(struct intel_pinctrl *pctrl, unsigned int pin,
>  	u32 term = 0, up = 0, value;
>  	void __iomem *padcfg1;
>  
> -	/* Set default strength value in case none is given */
> -	if (arg == 1)
> -		arg = 5000;
> -
>  	switch (param) {
>  	case PIN_CONFIG_BIAS_DISABLE:
>  		break;
> @@ -690,6 +686,7 @@ static int intel_config_set_pull(struct intel_pinctrl *pctrl, unsigned int pin,
>  		case 20000:
>  			term = PADCFG1_TERM_20K;
>  			break;
> +		case 1: /* Set default strength value in case none is given */

Same comment here about constant.

>  		case 5000:
>  			term = PADCFG1_TERM_5K;
>  			break;
> @@ -716,6 +713,7 @@ static int intel_config_set_pull(struct intel_pinctrl *pctrl, unsigned int pin,
>  		case 20000:
>  			term = PADCFG1_TERM_20K;
>  			break;
> +		case 1: /* Set default strength value in case none is given */
>  		case 5000:
>  			term = PADCFG1_TERM_5K;
>  			break;
> -- 
> 2.40.0.1.gaa8946217a0b