[PATCH V4] ASoC: fsl_xcvr:Fix unbalanced pm_runtime_enable in fsl_xcvr_probe

[Shengjiu Wang]

On Thu, Jun 2, 2022 at 3:18 PM zhangqilong <zhangqilong3 at huawei.com> wrote:

> a) Add missing pm_runtime_disable() when probe error out. It could
> avoid pm_runtime implementation complains when removing and probing
> again the driver.
> b) Add remove for missing pm_runtime_disable().
>
> Fix:c590fa80b3928 ("ASoC: fsl_xcvr: register platform component before
> registering cpu dai")
> Signed-off-by: Zhang Qilong <zhangqilong3 at huawei.com>
>

Acked-by: Shengjiu Wang <shengjiu.wang at gmail.com>

Best regards
Wang shengjiu

> ---
> v2:
> - Add remove to put PM usage counter.
>
> v3:
> - Modify the commit message.
> ---
>  sound/soc/fsl/fsl_xcvr.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c
> index d0556c79fdb1..55e640cba87d 100644
> --- a/sound/soc/fsl/fsl_xcvr.c
> +++ b/sound/soc/fsl/fsl_xcvr.c
> @@ -1228,6 +1228,7 @@ static int fsl_xcvr_probe(struct platform_device
> *pdev)
>          */
>         ret = devm_snd_dmaengine_pcm_register(dev, NULL, 0);
>         if (ret) {
> +               pm_runtime_disable(dev);
>                 dev_err(dev, "failed to pcm register\n");
>                 return ret;
>         }
> @@ -1235,6 +1236,7 @@ static int fsl_xcvr_probe(struct platform_device
> *pdev)
>         ret = devm_snd_soc_register_component(dev, &fsl_xcvr_comp,
>                                               &fsl_xcvr_dai, 1);
>         if (ret) {
> +               pm_runtime_disable(dev);
>                 dev_err(dev, "failed to register component %s\n",
>                         fsl_xcvr_comp.name);
>         }
> @@ -1242,6 +1244,12 @@ static int fsl_xcvr_probe(struct platform_device
> *pdev)
>         return ret;
>  }
>
> +static int fsl_xcvr_remove(struct platform_device *pdev)
> +{
> +       pm_runtime_disable(&pdev->dev);
> +       return 0;
> +}
> +
>  static __maybe_unused int fsl_xcvr_runtime_suspend(struct device *dev)
>  {
>         struct fsl_xcvr *xcvr = dev_get_drvdata(dev);
> @@ -1370,6 +1378,7 @@ static struct platform_driver fsl_xcvr_driver = {
>                 .pm = &fsl_xcvr_pm_ops,
>                 .of_match_table = fsl_xcvr_dt_ids,
>         },
> +       .remove = fsl_xcvr_remove,
>  };
>  module_platform_driver(fsl_xcvr_driver);
>
> --
> 2.31.1
>
>
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