[PATCH -next 2/4] ASoC: wm5110: Fix PM disable depth imbalance in wm5110_probe

[Charles Keepax]

On Thu, Sep 29, 2022 at 12:01:14AM +0800, Zhang Qilong wrote:
> The pm_runtime_enable will increase power disable depth. Thus
> a pairing decrement is needed on the error handling path to
> keep it balanced according to context. We fix it by moving
> pm_runtime_enable to the endding of wm5110_probe.
> 
> Fixes:5c6af635fd772 ("ASoC: wm5110: Add audio CODEC driver")
> Signed-off-by: Zhang Qilong <zhangqilong3 at huawei.com>
> ---

As Mark said please use maintainers and specifically if patching
the Wolfson/Cirrus CODECs please CC
patches at opensource.cirrus.com

>  sound/soc/codecs/wm5110.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
> index f3f4a10bf0f7..fc634c995834 100644
> --- a/sound/soc/codecs/wm5110.c
> +++ b/sound/soc/codecs/wm5110.c
> @@ -2457,9 +2457,6 @@ static int wm5110_probe(struct platform_device *pdev)
>  		regmap_update_bits(arizona->regmap, wm5110_digital_vu[i],
>  				   WM5110_DIG_VU, WM5110_DIG_VU);
>  
> -	pm_runtime_enable(&pdev->dev);
> -	pm_runtime_idle(&pdev->dev);
> -
>  	ret = arizona_request_irq(arizona, ARIZONA_IRQ_DSP_IRQ1,
>  				  "ADSP2 Compressed IRQ", wm5110_adsp2_irq,
>  				  wm5110);
> @@ -2492,6 +2489,9 @@ static int wm5110_probe(struct platform_device *pdev)
>  		goto err_spk_irqs;
>  	}
>  
> +	pm_runtime_enable(&pdev->dev);
> +	pm_runtime_idle(&pdev->dev);
> +

I think it would be better to keep the pm_runtime enables before
the IRQ and component stuff. Both of those could start triggering
PM runtime events. We probably need to add an extra error path
here for disabling the pm_runtime.

Thanks,
Charles