to_usb_power_delivery
struct usb_power_delivery *pd = to_usb_power_delivery(dev);
struct usb_power_delivery *pd = to_usb_power_delivery(dev);
struct usb_power_delivery *pd = to_usb_power_delivery(kobj_to_dev(kobj));
struct usb_power_delivery *pd = to_usb_power_delivery(dev);
return dev ? to_usb_power_delivery(dev) : NULL;