device_pm_set_parent9
Specify power dependency.
Usage
void device_pm_set_parent(struct device * dev, struct device * parent);
Arguments
dev
Device who needs power.
parent
Device that supplies power.
Overview
This function is used to manually describe a power-dependency relationship. It may be used to specify a transversal relationship (where the power supplier is not the physical (or electrical) ancestor of a specific device. The effect of this is that the supplier will not be powered down before the power dependent.