Re: [PATCH 01/22] ASoC: mediatek: mt8192-afe-pcm: Convert to devm_pm_runtime_enable()

[Chen-Yu Tsai]

On Tue, Feb 27, 2024 at 8:10 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@xxxxxxxxxxxxx> wrote:
>
> Switch from pm_runtime_enable() to devm_pm_runtime_enable(), allowing
> to remove all gotos from the probe function.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>

Reviewed-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>

This also fixes the unwinding order during driver unbinding.


> ---
>  sound/soc/mediatek/mt8192/mt8192-afe-pcm.c | 46 ++++++++--------------
>  1 file changed, 17 insertions(+), 29 deletions(-)
>
> diff --git a/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c b/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c
> index bdd1e91824d9..794419d16b01 100644
> --- a/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c
> +++ b/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c
> @@ -2217,21 +2217,20 @@ static int mt8192_afe_pcm_dev_probe(struct platform_device *pdev)
>                 return ret;
>         }
>
> -       pm_runtime_enable(&pdev->dev);
> -       if (!pm_runtime_enabled(&pdev->dev))
> -               goto err_pm_disable;
> +       ret = devm_pm_runtime_enable(&pdev->dev);
> +       if (ret)
> +               return ret;
>
>         /* regmap init */
>         afe->regmap = syscon_node_to_regmap(dev->parent->of_node);
>         if (IS_ERR(afe->regmap)) {
>                 dev_err(dev, "could not get regmap from parent\n");
> -               ret = PTR_ERR(afe->regmap);
> -               goto err_pm_disable;
> +               return PTR_ERR(afe->regmap);
>         }
>         ret = regmap_attach_dev(dev, afe->regmap, &mt8192_afe_regmap_config);
>         if (ret) {
>                 dev_warn(dev, "regmap_attach_dev fail, ret %d\n", ret);
> -               goto err_pm_disable;
> +               return ret;
>         }
>
>         /* enable clock for regcache get default value from hw */
> @@ -2241,7 +2240,7 @@ static int mt8192_afe_pcm_dev_probe(struct platform_device *pdev)
>         ret = regmap_reinit_cache(afe->regmap, &mt8192_afe_regmap_config);
>         if (ret) {
>                 dev_err(dev, "regmap_reinit_cache fail, ret %d\n", ret);
> -               goto err_pm_disable;
> +               return ret;
>         }
>
>         pm_runtime_put_sync(&pdev->dev);
> @@ -2254,10 +2253,8 @@ static int mt8192_afe_pcm_dev_probe(struct platform_device *pdev)
>         afe->memif_size = MT8192_MEMIF_NUM;
>         afe->memif = devm_kcalloc(dev, afe->memif_size, sizeof(*afe->memif),
>                                   GFP_KERNEL);
> -       if (!afe->memif) {
> -               ret = -ENOMEM;
> -               goto err_pm_disable;
> -       }
> +       if (!afe->memif)
> +               return -ENOMEM;
>
>         for (i = 0; i < afe->memif_size; i++) {
>                 afe->memif[i].data = &memif_data[i];
> @@ -2271,26 +2268,22 @@ static int mt8192_afe_pcm_dev_probe(struct platform_device *pdev)
>         afe->irqs_size = MT8192_IRQ_NUM;
>         afe->irqs = devm_kcalloc(dev, afe->irqs_size, sizeof(*afe->irqs),
>                                  GFP_KERNEL);
> -       if (!afe->irqs) {
> -               ret = -ENOMEM;
> -               goto err_pm_disable;
> -       }
> +       if (!afe->irqs)
> +               return -ENOMEM;
>
>         for (i = 0; i < afe->irqs_size; i++)
>                 afe->irqs[i].irq_data = &irq_data[i];
>
>         /* request irq */
>         irq_id = platform_get_irq(pdev, 0);
> -       if (irq_id < 0) {
> -               ret = irq_id;
> -               goto err_pm_disable;
> -       }
> +       if (irq_id < 0)
> +               return irq_id;
>
>         ret = devm_request_irq(dev, irq_id, mt8192_afe_irq_handler,
>                                IRQF_TRIGGER_NONE, "asys-isr", (void *)afe);
>         if (ret) {
>                 dev_err(dev, "could not request_irq for Afe_ISR_Handle\n");
> -               goto err_pm_disable;
> +               return ret;
>         }
>
>         /* init sub_dais */
> @@ -2301,7 +2294,7 @@ static int mt8192_afe_pcm_dev_probe(struct platform_device *pdev)
>                 if (ret) {
>                         dev_warn(afe->dev, "dai register i %d fail, ret %d\n",
>                                  i, ret);
> -                       goto err_pm_disable;
> +                       return ret;
>                 }
>         }
>
> @@ -2310,7 +2303,7 @@ static int mt8192_afe_pcm_dev_probe(struct platform_device *pdev)
>         if (ret) {
>                 dev_warn(afe->dev, "mtk_afe_combine_sub_dai fail, ret %d\n",
>                          ret);
> -               goto err_pm_disable;
> +               return ret;
>         }
>
>         /* others */
> @@ -2329,7 +2322,7 @@ static int mt8192_afe_pcm_dev_probe(struct platform_device *pdev)
>                                               &mt8192_afe_component, NULL, 0);
>         if (ret) {
>                 dev_warn(dev, "err_platform\n");
> -               goto err_pm_disable;
> +               return ret;
>         }
>
>         ret = devm_snd_soc_register_component(&pdev->dev,
> @@ -2338,15 +2331,10 @@ static int mt8192_afe_pcm_dev_probe(struct platform_device *pdev)
>                                               afe->num_dai_drivers);
>         if (ret) {
>                 dev_warn(dev, "err_dai_component\n");
> -               goto err_pm_disable;
> +               return ret;
>         }
>
>         return 0;
> -
> -err_pm_disable:
> -       pm_runtime_disable(&pdev->dev);
> -
> -       return ret;
>  }
>
>  static void mt8192_afe_pcm_dev_remove(struct platform_device *pdev)
> --
> 2.44.0
>