Commit 07d8a5f7 authored by Tejas Patel's avatar Tejas Patel Committed by Manish Pandey
Browse files

plat: xilinx: versal: Add support of set max latency for the device



Add support of set max latency, to change in the maximum powerup latency
requirements for a specific device currently used by Subsystem.
Signed-off-by: default avatarTejas Patel <tejas.patel@xilinx.com>
Signed-off-by: default avatarRajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I8749886abb1a7884a42c4d156d89c9cd562a5b1a
parent 2cc1fa95
......@@ -859,6 +859,7 @@ enum pm_ret_status pm_feature_check(uint32_t api_id, unsigned int *version)
case PM_PLL_GET_MODE:
case PM_FEATURE_CHECK:
case PM_INIT_FINALIZE:
case PM_SET_MAX_LATENCY:
*version = (PM_API_BASE_VERSION << 16);
break;
case PM_LOAD_PDI:
......@@ -924,3 +925,23 @@ enum pm_ret_status pm_get_op_characteristic(uint32_t device_id,
device_id, type);
return pm_ipi_send_sync(primary_proc, payload, result, 1);
}
/**
* pm_set_max_latency() - PM call to change in the maximum wake-up latency
* requirements for a specific device currently
* used by that CPU.
* @device_id Device ID
* @latency Latency value
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_set_max_latency(uint32_t device_id, uint32_t latency)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_SET_MAX_LATENCY,
device_id, latency);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
......@@ -73,4 +73,5 @@ enum pm_ret_status pm_load_pdi(uint32_t src, uint32_t address_low,
enum pm_ret_status pm_get_op_characteristic(uint32_t device_id,
enum pm_opchar_type type,
uint32_t *result);
enum pm_ret_status pm_set_max_latency(uint32_t device_id, uint32_t latency);
#endif /* PM_API_SYS_H */
......@@ -55,6 +55,7 @@
#define PM_REQUEST_DEVICE 13U
#define PM_RELEASE_DEVICE 14U
#define PM_SET_REQUIREMENT 15U
#define PM_SET_MAX_LATENCY 16U
#define PM_RESET_ASSERT 17U
#define PM_RESET_GET_STATUS 18U
#define PM_INIT_FINALIZE 21U
......
......@@ -323,6 +323,12 @@ uint64_t pm_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
SMC_RET1(handle, (uint64_t)ret | ((uint64_t)result << 32));
}
case PM_SET_MAX_LATENCY:
{
ret = pm_set_max_latency(pm_arg[0], pm_arg[1]);
SMC_RET1(handle, (uint64_t)ret);
}
default:
WARN("Unimplemented PM Service Call: 0x%x\n", smc_fid);
SMC_RET1(handle, SMC_UNK);
......
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