Re: [PATCH v2] panfrost: Properly undo pm_runtime_enable when deferring a probe

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On 23/10/2019 13:21, Tomeu Vizoso wrote:
> When deferring the probe because of a missing regulator, we were calling
> pm_runtime_disable even if pm_runtime_enable wasn't called.
> 
> Move the call to pm_runtime_disable to the right place.
> 
> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>
> Reported-by: Chen-Yu Tsai <wens@xxxxxxxx>
> Cc: Robin Murphy <robin.murphy@xxxxxxx>
> Fixes: f4a3c6a44b35 ("drm/panfrost: Disable PM on probe failure")

As Robin pointed out this should be:

Fixes: 635430797d3f ("drm/panfrost: Rework runtime PM initialization")

But other than that,

Reviewed-by: Steven Price <steven.price@xxxxxxx>

> ---
>  drivers/gpu/drm/panfrost/panfrost_drv.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c
> index bc2ddeb55f5d..f21bc8a7ee3a 100644
> --- a/drivers/gpu/drm/panfrost/panfrost_drv.c
> +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
> @@ -556,11 +556,11 @@ static int panfrost_probe(struct platform_device *pdev)
>  	return 0;
>  
>  err_out2:
> +	pm_runtime_disable(pfdev->dev);
>  	panfrost_devfreq_fini(pfdev);
>  err_out1:
>  	panfrost_device_fini(pfdev);
>  err_out0:
> -	pm_runtime_disable(pfdev->dev);
>  	drm_dev_put(ddev);
>  	return err;
>  }
> 

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