linux-kernel - Re: [PATCH] iio: adc: max9611: fix module auto-loading

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Message-ID: <CAHp75VfWSnJ0jtL8sVn-kF1VN6kCzYr6x9K9t6Lm1PEp-FpiiA@mail.gmail.com>
Date:   Fri, 29 Dec 2017 11:12:57 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Dmitry Mastykin <mastichi@...il.com>
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Jacopo Mondi <jacopo+renesas@...ndi.org>,
        Rob Herring <robh@...nel.org>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        linux-iio@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] iio: adc: max9611: fix module auto-loading

On Fri, Dec 29, 2017 at 9:14 AM, Dmitry Mastykin <mastichi@...il.com> wrote:
> Module auto-load doesn't work because i2c table is not exported.
>

The simplest fix is to move to ->probe_new() since the driver is not
used out of DT/ACPI enumeration.

> Signed-off-by: Dmitry Mastykin <mastichi@...il.com>
> ---
>  drivers/iio/adc/max9611.c | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iio/adc/max9611.c b/drivers/iio/adc/max9611.c
> index b1dd17c..7924b5c 100644
> --- a/drivers/iio/adc/max9611.c
> +++ b/drivers/iio/adc/max9611.c
> @@ -516,13 +516,20 @@ static int max9611_init(struct max9611_dev *max9611)
>         return 0;
>  }
>
> +static const struct i2c_device_id max9611_id[] = {
> +       { "max9611", 0 },
> +       { "max9612", 0 },
> +       { },
> + };
> +MODULE_DEVICE_TABLE(i2c, max9611_id);
> +
>  static const struct of_device_id max9611_of_table[] = {
>         {.compatible = "maxim,max9611", .data = "max9611"},
>         {.compatible = "maxim,max9612", .data = "max9612"},
>         { },
>  };
> -
>  MODULE_DEVICE_TABLE(of, max9611_of_table);
> +
>  static int max9611_probe(struct i2c_client *client,
>                          const struct i2c_device_id *id)
>  {
> --
> 2.7.4
>



-- 
With Best Regards,
Andy Shevchenko