+int smu_set_mp1_state(struct smu_context *smu,
+ enum pp_mp1_state mp1_state)
+{
+ uint16_t msg;
+ int ret;
+
+ /*
+ * The SMC is not fully ready. That may be
+ * expected as the IP may be masked.
+ * So, just return without error.
+ */
+ if (!smu->pm_enabled)
+ return 0;
+
+ switch (mp1_state) {
+ case PP_MP1_STATE_SHUTDOWN:
+ msg = SMU_MSG_PrepareMp1ForShutdown;
+ break;
+ case PP_MP1_STATE_UNLOAD:
+ msg = SMU_MSG_PrepareMp1ForUnload;
+ break;
+ case PP_MP1_STATE_RESET:
+ msg = SMU_MSG_PrepareMp1ForReset;
+ break;
+ case PP_MP1_STATE_NONE:
+ default:
+ return 0;
+ }
+
+ /* some asics may not support those messages */
+ if (smu_msg_get_index(smu, msg) < 0)
+ return 0;
+
+ ret = smu_send_smc_msg(smu, msg);
+ if (ret)
+ pr_err("[PrepareMp1] Failed!\n");
+
+ return ret;
+}
+