Re: [PATCH v2 11/22] usb: chipidea: msm: Mark device as runtime pm active

[Peter Chen]

On Thu, Jul 07, 2016 at 03:21:02PM -0700, Stephen Boyd wrote:
> We're not properly marking the glue layer/wrapper device as
> runtime active, so runtime PM believes that the hardware state is
> inactive when we call pm_runtime_enable() in this driver. This
> causes a problem when the glue layer has a power domain
> associated with it, because runtime PM will go and disable the
> power domain to match the 'inactive' state of the device. Let's
> mark the device as active so that runtime PM doesn't improperly
> power down this device when it's actually active.
> 
> Cc: Peter Chen <peter.chen@xxxxxxx>
> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Stephen Boyd <stephen.boyd@xxxxxxxxxx>
> ---
>  drivers/usb/chipidea/ci_hdrc_msm.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
> index 3889809fd0c4..89c1a02d69b5 100644
> --- a/drivers/usb/chipidea/ci_hdrc_msm.c
> +++ b/drivers/usb/chipidea/ci_hdrc_msm.c
> @@ -80,6 +80,7 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev)
>  
>  	platform_set_drvdata(pdev, plat_ci);
>  
> +	pm_runtime_set_active(&pdev->dev);
>  	pm_runtime_no_callbacks(&pdev->dev);
>  	pm_runtime_enable(&pdev->dev);
>  

Acked-by: Peter Chen <peter.chen@xxxxxxx>

-- 

Best Regards,
Peter Chen