linux-kernel - Re: [PATCH 29/31] PM / devfreq: imx-bus: convert to use devm_pm_opp

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Message-ID: <CAGTfZH1eE_a-qvOb+GDRogipNS1c+K48JL6pYQ3UovpQR9zUbA@mail.gmail.com>
Date:   Tue, 5 Jan 2021 13:20:24 +0900
From:   Chanwoo Choi <cwchoi00@...il.com>
To:     Yangtao Li <tiny.windzz@...il.com>
Cc:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>, s.hauer@...gutronix.de,
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Subject: Re: [PATCH 29/31] PM / devfreq: imx-bus: convert to use devm_pm_opp_* API

On Sun, Jan 3, 2021 at 12:58 PM Yangtao Li <tiny.windzz@...il.com> wrote:
>
> Use devm_pm_opp_* API to simplify code.
>
> Signed-off-by: Yangtao Li <tiny.windzz@...il.com>
> ---
>  drivers/devfreq/imx-bus.c | 14 +++-----------
>  1 file changed, 3 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/devfreq/imx-bus.c b/drivers/devfreq/imx-bus.c
> index 4f38455ad742..ff26ef049b1b 100644
> --- a/drivers/devfreq/imx-bus.c
> +++ b/drivers/devfreq/imx-bus.c
> @@ -61,7 +61,6 @@ static void imx_bus_exit(struct device *dev)
>  {
>         struct imx_bus *priv = dev_get_drvdata(dev);
>
> -       dev_pm_opp_of_remove_table(dev);
>         platform_device_unregister(priv->icc_pdev);
>  }
>
> @@ -123,7 +122,7 @@ static int imx_bus_probe(struct platform_device *pdev)
>         }
>         platform_set_drvdata(pdev, priv);
>
> -       ret = dev_pm_opp_of_add_table(dev);
> +       ret = devm_pm_opp_of_add_table(dev);
>         if (ret < 0) {
>                 dev_err(dev, "failed to get OPP table\n");
>                 return ret;
> @@ -141,18 +140,11 @@ static int imx_bus_probe(struct platform_device *pdev)
>         if (IS_ERR(priv->devfreq)) {
>                 ret = PTR_ERR(priv->devfreq);
>                 dev_err(dev, "failed to add devfreq device: %d\n", ret);
> -               goto err;
> +               return ret;
>         }
>
> -       ret = imx_bus_init_icc(dev);
> -       if (ret)
> -               goto err;
> -
> -       return 0;
> +       return imx_bus_init_icc(dev);

Remove the unneeded blank line under '.return imx_bus_init_icc(dev);".

> -err:
> -       dev_pm_opp_of_remove_table(dev);
> -       return ret;
>  }
>
>  static const struct of_device_id imx_bus_of_match[] = {
> --
> 2.25.1
>


-- 
Best Regards,
Chanwoo Choi