linux-kernel - Re: [PATCH] iio: stm: don't always auto-enable I2C and SPI interface drivers

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Message-ID: <CACRpkdYcR7SA1bfzAtMBpXZiXZeZnV8hWGddx26VvvKwiZC4Sw@mail.gmail.com>
Date:   Sun, 2 Jan 2022 08:02:21 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Nikita Yushchenko <nikita.yoush@...entembedded.com>,
        Arnd Bergmann <arnd@...db.de>
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Alexandru Ardelean <aardelean@...iqon.com>,
        Cai Huoqing <caihuoqing@...du.com>, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iio: stm: don't always auto-enable I2C and SPI interface drivers

On Wed, Dec 29, 2021 at 8:29 AM Nikita Yushchenko
<nikita.yoush@...entembedded.com> wrote:

>  config IIO_ST_ACCEL_I2C_3AXIS
> -       tristate
> -       depends on IIO_ST_ACCEL_3AXIS
> -       depends on IIO_ST_SENSORS_I2C
> +       tristate "STMicroelectronics accelerometers 3-Axis I2C Interface"
> +       depends on (I2C && IIO_ST_ACCEL_3AXIS)
> +       default y if (I2C && IIO_ST_ACCEL_3AXIS)
> +       select IIO_ST_SENSORS_I2C

This thing that a Kconfig symbol is made to depend on itself just
boggles my head but it wouldn't surprise me if KConfig is this weird :(

I CCed Arnd who knows KConfig a bit better than anyone I know.

Yours,
Linus Walleij