This function is used by a PU to announce a change in requirements for a specific slave node which is currently in use.
Note: If this function is called after the last awake CPU within the PU calls SelfSuspend, the requirement change shall be performed after the CPU signals the end of suspend to the power management controller, (e.g. WFI interrupt).
Prototype
XStatus XPm_SetRequirement(const enum XPmNodeId nid, const u32 capabilities, const u32 qos, const enum XPmRequestAck ack);Parameters
The following table lists the XPm_SetRequirement function arguments.
| Type | Name | Description |
|---|---|---|
const enum
XPmNodeId
|
nid | Node ID of the PM slave. |
| const u32 | capabilities | Slave-specific capabilities required. |
| const u32 | qos | Quality of Service (0-100) required. |
const enum
XPmRequestAck
|
ack | Requested acknowledge type |