On Wed, Oct 24, 2018 at 04:51:34PM +0300, Jarkko Nikula wrote:
> Platform drivers don't need dummy runtime PM callbacks that just return
> success in order to have runtime PM happening. This has changed since
> following commits:
> 
> 05aa55dddb9e ("PM / Runtime: Lenient generic runtime pm callbacks")
> 543f2503a956 ("PM / platform_bus: Allow runtime PM by default")
> 8b313a38ecff ("PM / Platform: Use generic runtime PM callbacks directly")
> 
> Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>

Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

>  static const struct dev_pm_ops usbhsc_pm_ops = {
>  	.suspend		= usbhsc_suspend,
>  	.resume			= usbhsc_resume,

Unrelated to this patch, but I wonder right now: is there a reason not
to use SET_SYSTEM_SLEEP_PM_OPS here? Shimoda-san?