/**
* pm_req_suspend() - PM call to request for another PU or subsystem to
* be suspended gracefully.
* @target Node id of the targeted PU or subsystem
* @ack Flag to specify whether acknowledge is requested
* @latency Requested wakeup latency (not supported)
* @state Requested state (not supported)
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_req_suspend(enum pm_node_id target,
enum pm_request_ack ack,
unsigned int latency, unsigned int state)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMU */
PM_PACK_PAYLOAD5(payload, PM_REQ_SUSPEND, target, ack, latency, state);
if (ack == REQ_ACK_BLOCKING)
return pm_ipi_send_sync(primary_proc, payload, NULL);
else
return pm_ipi_send(primary_proc, payload);
}
/**
* pm_req_node() - PM call to request a node with specific capabilities
* @nid Node id of the slave
* @capabilities Requested capabilities of the slave
* @qos Quality of service (not supported)
* @ack Flag to specify whether acknowledge is requested
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_req_node(enum pm_node_id nid,
unsigned int capabilities,
unsigned int qos,
enum pm_request_ack ack)
{
uint32_t payload[PAYLOAD_ARG_CNT];
PM_PACK_PAYLOAD5(payload, PM_REQ_NODE, nid, capabilities, qos, ack);
if (ack == REQ_ACK_BLOCKING)
return pm_ipi_send_sync(primary_proc, payload, NULL);
else
return pm_ipi_send(primary_proc, payload);
}
/**
* pm_set_requirement() - PM call to set requirement for PM slaves
* @nid Node id of the slave
* @capabilities Requested capabilities of the slave
* @qos Quality of service (not supported)
* @ack Flag to specify whether acknowledge is requested
*
* This API function is to be used for slaves a PU already has requested
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_set_requirement(const enum pm_node_id nid,
const uint32_t capabilities,
const uint32_t qos,
const enum pm_request_ack ack)
{
uint32_t payload[PAYLOAD_ARG_CNT];
PM_PACK_PAYLOAD5(payload, PM_SET_REQUIREMENT, nid, capabilities, qos,
ack);
if (REQ_ACK_BLOCKING == ack)
return pm_ipi_send_sync(primary_proc, payload, NULL);
else
return pm_ipi_send(primary_proc, payload);
}
