linux-kernel - Re: [PATCH v2] gpio: palmas: Allow building as a module

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Message-ID: <CALHNRZ-z4+a-h4GZepODbqcmcPKkvGXvX4wpJSinr_gcZptjrQ@mail.gmail.com>
Date: Wed, 28 May 2025 12:44:17 -0500
From: Aaron Kling <webgeek1234@...il.com>
To: webgeek1234@...il.com
Cc: Linus Walleij <linus.walleij@...aro.org>, Bartosz Golaszewski <brgl@...ev.pl>, linux-gpio@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] gpio: palmas: Allow building as a module

On Thu, May 22, 2025 at 5:22 PM Aaron Kling via B4 Relay
<devnull+webgeek1234.gmail.com@...nel.org> wrote:
>
> From: Aaron Kling <webgeek1234@...il.com>
>
> The driver works fine as a module, so allowing building as such. This
> drops the driver specific init in favor of the module macro which does
> the same, plus handling exit.
>
> Signed-off-by: Aaron Kling <webgeek1234@...il.com>
> ---
> Changes in v2:
> - Drop module alias and add module device table
> - Link to v1: https://lore.kernel.org/r/20250522-gpio-palmas-gpio-v1-1-d6b1a3776ef5@gmail.com
> ---
>  drivers/gpio/Kconfig       |  2 +-
>  drivers/gpio/gpio-palmas.c | 10 +++++-----
>  2 files changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
> index f2c39bbff83a33dcb12b2d32aa3ebc358a0dd949..be5d823516d0e2bff4b4231dac6a82bf10887118 100644
> --- a/drivers/gpio/Kconfig
> +++ b/drivers/gpio/Kconfig
> @@ -1464,7 +1464,7 @@ config GPIO_MAX77650
>           These chips have a single pin that can be configured as GPIO.
>
>  config GPIO_PALMAS
> -       bool "TI PALMAS series PMICs GPIO"
> +       tristate "TI PALMAS series PMICs GPIO"
>         depends on MFD_PALMAS
>         help
>           Select this option to enable GPIO driver for the TI PALMAS
> diff --git a/drivers/gpio/gpio-palmas.c b/drivers/gpio/gpio-palmas.c
> index 28dba7048509a3ef9c7972c1be53ea30adddabb0..eaef29f59292de5281f31e196961d90974e65b75 100644
> --- a/drivers/gpio/gpio-palmas.c
> +++ b/drivers/gpio/gpio-palmas.c
> @@ -140,6 +140,7 @@ static const struct of_device_id of_palmas_gpio_match[] = {
>         { .compatible = "ti,tps80036-gpio", .data = &tps80036_dev_data,},
>         { },
>  };
> +MODULE_DEVICE_TABLE(of, of_palmas_gpio_match);
>
>  static int palmas_gpio_probe(struct platform_device *pdev)
>  {
> @@ -191,9 +192,8 @@ static struct platform_driver palmas_gpio_driver = {
>         .driver.of_match_table = of_palmas_gpio_match,
>         .probe          = palmas_gpio_probe,
>  };
> +module_platform_driver(palmas_gpio_driver);
>
> -static int __init palmas_gpio_init(void)
> -{
> -       return platform_driver_register(&palmas_gpio_driver);
> -}
> -subsys_initcall(palmas_gpio_init);
> +MODULE_DESCRIPTION("TI PALMAS series GPIO driver");
> +MODULE_AUTHOR("Laxman Dewangan <ldewangan@...dia.com>");
> +MODULE_LICENSE("GPL");
>
> ---
> base-commit: b36ddb9210e6812eb1c86ad46b66cc46aa193487
> change-id: 20250520-gpio-palmas-gpio-a99fc046dc7f
>
> Best regards,
> --
> Aaron Kling <webgeek1234@...il.com>
>
>

Friendly reminder about this patch.

Sincerely,
Aaron