linux-kernel - Re: [PATCH 2/3] pinctrl: Add STM32F746 MCU support

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Date:	Tue, 5 Jul 2016 10:02:18 -0400
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	Alexandre TORGUE <alexandre.torgue@...com>
CC:	Linus Walleij <linus.walleij@...aro.org>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Patrice Chotard <patrice.chotard@...com>,
	Rob Herring <robh+dt@...nel.org>,
	<linux-kernel@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>
Subject: Re: [PATCH 2/3] pinctrl: Add STM32F746 MCU support

[[PATCH 2/3] pinctrl: Add STM32F746 MCU support] On 05/07/2016 (Tue 15:40) Alexandre TORGUE wrote:

> From: Maxime Coquelin <mcoquelin.stm32@...il.com>
> 
> This patch which adds STM32F746 pinctrl and GPIO support, relies on the
> generic STM32 pinctrl driver.
> 
> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@...il.com>
> Signed-off-by: Alexandre TORGUE <alexandre.torgue@...com>
> 
> diff --git a/drivers/pinctrl/stm32/Kconfig b/drivers/pinctrl/stm32/Kconfig
> index 0f28841..4c40dae 100644
> --- a/drivers/pinctrl/stm32/Kconfig
> +++ b/drivers/pinctrl/stm32/Kconfig
> @@ -13,4 +13,10 @@ config PINCTRL_STM32F429
>  	default MACH_STM32F429
>  	select PINCTRL_STM32
>  
> +config PINCTRL_STM32F746
> +	bool "STMicroelectronics STM32F746 pin control" if COMPILE_TEST && !MACH_STM32F746
        ^^^^

> +	depends on OF
> +	default MACH_STM32F746
> +	select PINCTRL_STM32
> +
> +	),
> +};
> +

[...]

> +static const struct of_device_id stm32f746_pctrl_match[] = {
> +	{
> +		.compatible = "st,stm32f746-pinctrl",
> +		.data = &stm32f746_match_data,
> +	},
> +	{ }
> +};
> +MODULE_DEVICE_TABLE(of, stm32f746_pctrl_match);
  ^^^^^^^^^^^^^^^^^^^^

> +
> +static struct platform_driver stm32f746_pinctrl_driver = {
> +	.probe = stm32_pctl_probe,
> +	.driver = {
> +		.name = "stm32f746-pinctrl",
> +		.of_match_table = stm32f746_pctrl_match,
> +	},
> +};
> +
> +static int __init stm32f746_pinctrl_init(void)
> +{
> +	return platform_driver_register(&stm32f746_pinctrl_driver);
> +}
> +
> +module_init(stm32f746_pinctrl_init);
> +
> +MODULE_LICENSE("GPL");
> +MODULE_DESCRIPTION("STM32F746 Pinctrl Driver");
> +MODULE_AUTHOR("Maxime Coquelin <mcoquelin.stm32@...il.com>");

...and here as well.  Please don't use modular support functions and
infrastructure for code that is only built-in.  Either make sure it can
be modular and use a tristate Kconfig, or delete all the MODULE_<tags>
and use device_initcall() to register the driver.

Thanks,
Paul.
--

> -- 
> 1.9.1
>