LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Alexandru Ardelean <ardeleanalex@gmail.com>
To: "Théo Borém Fabris" <theobf@usp.br>
Cc: Jonathan Cameron <jic23@kernel.org>,
	Lars-Peter Clausen <lars@metafoo.de>,
	linux-iio <linux-iio@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] iio: dac: max5821: convert device register to device managed function
Date: Mon, 26 Jul 2021 09:53:54 +0300	[thread overview]
Message-ID: <CA+U=DsrQyDsGHDZvnfyE0n8=gdgM4ivTuFFhtw1FO_oqNW+grg@mail.gmail.com> (raw)
In-Reply-To: <20210724220159.11998-1-theobf@usp.br>

On Sun, Jul 25, 2021 at 1:06 AM Théo Borém Fabris <theobf@usp.br> wrote:
>
> Add a device managed hook, via devm_add_action_or_reset() and
> max5821_regulator_disable(), to disable voltage regulator on device
> detach.
> Replace iio_device_register() by devm_iio_device_register() and remove
> the max5821_remove() function used to unregister the device and disable the
> voltage regulator.
> Remove i2c_set_clientdata() from the probe function, since
> i2c_get_clientdata() is not used anymore.
> Remove regulator_disable() calls from the probe function.
>

Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>

> Signed-off-by: Théo Borém Fabris <theobf@usp.br>
> ---
> Changelog:
> V1 -> V2: Removed regulator_disable() calls and goto statements
>
>  drivers/iio/dac/max5821.c | 41 ++++++++++++++++-----------------------
>  1 file changed, 17 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/iio/dac/max5821.c b/drivers/iio/dac/max5821.c
> index bd6e75699a63..bd0b7f361154 100644
> --- a/drivers/iio/dac/max5821.c
> +++ b/drivers/iio/dac/max5821.c
> @@ -294,6 +294,11 @@ static const struct iio_info max5821_info = {
>         .write_raw = max5821_write_raw,
>  };
>
> +static void max5821_regulator_disable(void *reg)
> +{
> +       regulator_disable(reg);
> +}
> +
>  static int max5821_probe(struct i2c_client *client,
>                         const struct i2c_device_id *id)
>  {
> @@ -306,7 +311,6 @@ static int max5821_probe(struct i2c_client *client,
>         if (!indio_dev)
>                 return -ENOMEM;
>         data = iio_priv(indio_dev);
> -       i2c_set_clientdata(client, indio_dev);
>         data->client = client;
>         mutex_init(&data->lock);
>
> @@ -321,21 +325,29 @@ static int max5821_probe(struct i2c_client *client,
>                 ret = PTR_ERR(data->vref_reg);
>                 dev_err(&client->dev,
>                         "Failed to get vref regulator: %d\n", ret);
> -               goto error_free_reg;
> +               return ret;
>         }
>
>         ret = regulator_enable(data->vref_reg);
>         if (ret) {
>                 dev_err(&client->dev,
>                         "Failed to enable vref regulator: %d\n", ret);
> -               goto error_free_reg;
> +               return ret;
> +       }
> +
> +       ret = devm_add_action_or_reset(&client->dev, max5821_regulator_disable,
> +                                      data->vref_reg);
> +       if (ret) {
> +               dev_err(&client->dev,
> +                       "Failed to add action to managed regulator: %d\n", ret);
> +               return ret;
>         }
>
>         ret = regulator_get_voltage(data->vref_reg);
>         if (ret < 0) {
>                 dev_err(&client->dev,
>                         "Failed to get voltage on regulator: %d\n", ret);
> -               goto error_disable_reg;
> +               return ret;
>         }
>
>         data->vref_mv = ret / 1000;
> @@ -346,25 +358,7 @@ static int max5821_probe(struct i2c_client *client,
>         indio_dev->modes = INDIO_DIRECT_MODE;
>         indio_dev->info = &max5821_info;
>
> -       return iio_device_register(indio_dev);
> -
> -error_disable_reg:
> -       regulator_disable(data->vref_reg);
> -
> -error_free_reg:
> -
> -       return ret;
> -}
> -
> -static int max5821_remove(struct i2c_client *client)
> -{
> -       struct iio_dev *indio_dev = i2c_get_clientdata(client);
> -       struct max5821_data *data = iio_priv(indio_dev);
> -
> -       iio_device_unregister(indio_dev);
> -       regulator_disable(data->vref_reg);
> -
> -       return 0;
> +       return devm_iio_device_register(&client->dev, indio_dev);
>  }
>
>  static const struct i2c_device_id max5821_id[] = {
> @@ -386,7 +380,6 @@ static struct i2c_driver max5821_driver = {
>                 .pm     = &max5821_pm_ops,
>         },
>         .probe          = max5821_probe,
> -       .remove         = max5821_remove,
>         .id_table       = max5821_id,
>  };
>  module_i2c_driver(max5821_driver);
> --
> 2.20.1
>

  reply	other threads:[~2021-07-26  6:54 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-24 22:02 Théo Borém Fabris
2021-07-26  6:53 ` Alexandru Ardelean [this message]
2021-07-31 17:17   ` Jonathan Cameron

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CA+U=DsrQyDsGHDZvnfyE0n8=gdgM4ivTuFFhtw1FO_oqNW+grg@mail.gmail.com' \
    --to=ardeleanalex@gmail.com \
    --cc=jic23@kernel.org \
    --cc=lars@metafoo.de \
    --cc=linux-iio@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=theobf@usp.br \
    --subject='Re: [PATCH v2] iio: dac: max5821: convert device register to device managed function' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).