1 files changed, 73 insertions, 0 deletions
diff --git a/include/linux/dtpm.h b/include/linux/dtpm.h
new file mode 100644
index 000000000..a4a13514b
--- /dev/null
+++ b/include/linux/dtpm.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 Linaro Ltd
+ *
+ * Author: Daniel Lezcano <daniel.lezcano@linaro.org>
+ */
+#ifndef ___DTPM_H__
+#define ___DTPM_H__
+
+#include <linux/powercap.h>
+
+#define MAX_DTPM_DESCR 8
+#define MAX_DTPM_CONSTRAINTS 1
+
+struct dtpm {
+	struct powercap_zone zone;
+	struct dtpm *parent;
+	struct list_head sibling;
+	struct list_head children;
+	struct dtpm_ops *ops;
+	unsigned long flags;
+	u64 power_limit;
+	u64 power_max;
+	u64 power_min;
+	int weight;
+};
+
+struct dtpm_ops {
+	u64 (*set_power_uw)(struct dtpm *, u64);
+	u64 (*get_power_uw)(struct dtpm *);
+	int (*update_power_uw)(struct dtpm *);
+	void (*release)(struct dtpm *);
+};
+
+struct device_node;
+
+struct dtpm_subsys_ops {
+	const char *name;
+	int (*init)(void);
+	void (*exit)(void);
+	int (*setup)(struct dtpm *, struct device_node *);
+};
+
+enum DTPM_NODE_TYPE {
+	DTPM_NODE_VIRTUAL = 0,
+	DTPM_NODE_DT,
+};
+
+struct dtpm_node {
+	enum DTPM_NODE_TYPE type;
+	const char *name;
+	struct dtpm_node *parent;
+};
+
+static inline struct dtpm *to_dtpm(struct powercap_zone *zone)
+{
+	return container_of(zone, struct dtpm, zone);
+}
+
+int dtpm_update_power(struct dtpm *dtpm);
+
+int dtpm_release_zone(struct powercap_zone *pcz);
+
+void dtpm_init(struct dtpm *dtpm, struct dtpm_ops *ops);
+
+void dtpm_unregister(struct dtpm *dtpm);
+
+int dtpm_register(const char *name, struct dtpm *dtpm, struct dtpm *parent);
+
+int dtpm_create_hierarchy(struct of_device_id *dtpm_match_table);
+
+void dtpm_destroy_hierarchy(void);
+#endif