feat(mt8186): add SPM suspend driver
Add SPM suspend driver for suspend/resume features.
TEST=build pass
BUG=b:202871018
Change-Id: I25b4b97cd3138a7b347385539e47ccfa884d64fc
diff --git a/plat/mediatek/mt8186/drivers/spm/mt_spm_conservation.h b/plat/mediatek/mt8186/drivers/spm/mt_spm_conservation.h
new file mode 100644
index 0000000..e7ef346
--- /dev/null
+++ b/plat/mediatek/mt8186/drivers/spm/mt_spm_conservation.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2022, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_SPM_CONSERVATION_H
+#define MT_SPM_CONSERVATION_H
+
+#include <mt_spm_internal.h>
+
+extern int spm_conservation(int state_id, unsigned int ext_opand,
+ struct spm_lp_scen *spm_lp,
+ unsigned int resource_req);
+extern void spm_conservation_finish(int state_id, unsigned int ext_opand,
+ struct spm_lp_scen *spm_lp,
+ struct wake_status **status);
+extern int spm_conservation_get_result(struct wake_status **res);
+extern void spm_conservation_pwrctrl_init(struct pwr_ctrl *pwrctrl);
+
+#endif /* MT_SPM_CONSERVATION_H */