Re: [PATCH 2/2] pinctrl: renesas: rzg2l: Move pinconf_to_config_argument() call outside of switch cases

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Hi Prabhakar,

Thanks for your patch!

On Tue, Aug 27, 2024 at 3:17 PM Prabhakar <prabhakar.csengg@xxxxxxxxx> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>
> Refactor the `rzg2l_pinctrl_pinconf_set()` function by moving the call to
> `arg = pinconf_to_config_argument(_configs[i])` to the beginning of the
> loop. Previously, this call was redundantly made in each case of the
> switch statement.

This is not 100% true: the PIN_CONFIG_BIAS_* cases do not
call pinconf_to_config_argument(). But I agree that calling it
unconditionally doesn't harm.

> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

> --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
> +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
> @@ -1395,7 +1395,6 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
>                         break;
>
>                 case PIN_CONFIG_OUTPUT_ENABLE:
> -                       arg = pinconf_to_config_argument(_configs[i]);
>                         if (!(cfg & PIN_CFG_OEN))
>                                 return -EINVAL;
>                         if (!pctrl->data->oen_write)

Missed opportunity for simplification:

                case PIN_CONFIG_POWER_SOURCE:
-                       settings.power_source =
pinconf_to_config_argument(_configs[i]);
+                       settings.power_source = arg;
                        break;

> @@ -1432,8 +1429,6 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
>                         break;
>
>                 case PIN_CONFIG_DRIVE_STRENGTH:
> -                       arg = pinconf_to_config_argument(_configs[i]);
> -
>                         if (!(cfg & PIN_CFG_IOLH_A) || hwcfg->drive_strength_ua)
>                                 return -EINVAL;
>

                case PIN_CONFIG_DRIVE_STRENGTH_UA:
                        ...
-                       settings.drive_strength_ua =
pinconf_to_config_argument(_configs[i]);
+                       settings.drive_strength_ua = arg;
                        break;

The rest LGTM.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds





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