linux-kernel - RE: [PATCH] gpio: vf610: allow disabling the vf610 driver

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Message-ID:
 <DU0PR04MB9417956F985780AD85FD733E886F2@DU0PR04MB9417.eurprd04.prod.outlook.com>
Date: Fri, 12 Jan 2024 00:44:10 +0000
From: Peng Fan <peng.fan@....com>
To: Martin Kaiser <martin@...ser.cx>, Linus Walleij
	<linus.walleij@...aro.org>, Bartosz Golaszewski <brgl@...ev.pl>
CC: "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] gpio: vf610: allow disabling the vf610 driver

Thanks Linus for Ccing me.

> Subject: [PATCH] gpio: vf610: allow disabling the vf610 driver
> 
> The vf610 gpio driver is enabled by default for all i.MX machines, without any
> option to disable it in a board-specific config file.
> 
> Most i.MX chipsets have no hardware for this driver. Change the default to
> enable GPIO_VF610 for SOC_VF610 and disable it otherwise.
> 
> Add a text description after the bool type, this makes the driver selectable by
> make config etc. i.MX chips other than SOC_VF610 can now enable the driver
> from their board config.

This will break i.MX8QM,DXL,ULP/i.MX93 boot. You could add text description
to make it selectable, but please not drop def y. Or you need update defconfig.

Thanks,
Peng.

> 
> Fixes: 30a35c07d9e9 ("gpio: vf610: drop the SOC_VF610 dependency for
> GPIO_VF610")
> Signed-off-by: Martin Kaiser <martin@...ser.cx>
> ---
>  drivers/gpio/Kconfig | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index
> 1301cec94f12..353af1a4d0ac 100644
> --- a/drivers/gpio/Kconfig
> +++ b/drivers/gpio/Kconfig
> @@ -711,7 +711,8 @@ config GPIO_UNIPHIER
>  	  Say yes here to support UniPhier GPIOs.
> 
>  config GPIO_VF610
> -	def_bool y
> +	bool "VF610 GPIO support"
> +	default y if SOC_VF610
>  	depends on ARCH_MXC
>  	select GPIOLIB_IRQCHIP
>  	help
> --
> 2.39.2