v4.19.13 snapshot.
diff --git a/include/linux/pm_clock.h b/include/linux/pm_clock.h
new file mode 100644
index 0000000..09779b0
--- /dev/null
+++ b/include/linux/pm_clock.h
@@ -0,0 +1,99 @@
+/*
+ * pm_clock.h - Definitions and headers related to device clocks.
+ *
+ * Copyright (C) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Renesas Electronics Corp.
+ *
+ * This file is released under the GPLv2.
+ */
+
+#ifndef _LINUX_PM_CLOCK_H
+#define _LINUX_PM_CLOCK_H
+
+#include <linux/device.h>
+#include <linux/notifier.h>
+
+struct pm_clk_notifier_block {
+ struct notifier_block nb;
+ struct dev_pm_domain *pm_domain;
+ char *con_ids[];
+};
+
+struct clk;
+
+#ifdef CONFIG_PM
+extern int pm_clk_runtime_suspend(struct device *dev);
+extern int pm_clk_runtime_resume(struct device *dev);
+#define USE_PM_CLK_RUNTIME_OPS \
+ .runtime_suspend = pm_clk_runtime_suspend, \
+ .runtime_resume = pm_clk_runtime_resume,
+#else
+#define USE_PM_CLK_RUNTIME_OPS
+#endif
+
+#ifdef CONFIG_PM_CLK
+static inline bool pm_clk_no_clocks(struct device *dev)
+{
+ return dev && dev->power.subsys_data
+ && list_empty(&dev->power.subsys_data->clock_list);
+}
+
+extern void pm_clk_init(struct device *dev);
+extern int pm_clk_create(struct device *dev);
+extern void pm_clk_destroy(struct device *dev);
+extern int pm_clk_add(struct device *dev, const char *con_id);
+extern int pm_clk_add_clk(struct device *dev, struct clk *clk);
+extern int of_pm_clk_add_clk(struct device *dev, const char *name);
+extern int of_pm_clk_add_clks(struct device *dev);
+extern void pm_clk_remove(struct device *dev, const char *con_id);
+extern void pm_clk_remove_clk(struct device *dev, struct clk *clk);
+extern int pm_clk_suspend(struct device *dev);
+extern int pm_clk_resume(struct device *dev);
+#else
+static inline bool pm_clk_no_clocks(struct device *dev)
+{
+ return true;
+}
+static inline void pm_clk_init(struct device *dev)
+{
+}
+static inline int pm_clk_create(struct device *dev)
+{
+ return -EINVAL;
+}
+static inline void pm_clk_destroy(struct device *dev)
+{
+}
+static inline int pm_clk_add(struct device *dev, const char *con_id)
+{
+ return -EINVAL;
+}
+
+static inline int pm_clk_add_clk(struct device *dev, struct clk *clk)
+{
+ return -EINVAL;
+}
+static inline int of_pm_clk_add_clks(struct device *dev)
+{
+ return -EINVAL;
+}
+static inline void pm_clk_remove(struct device *dev, const char *con_id)
+{
+}
+#define pm_clk_suspend NULL
+#define pm_clk_resume NULL
+static inline void pm_clk_remove_clk(struct device *dev, struct clk *clk)
+{
+}
+#endif
+
+#ifdef CONFIG_HAVE_CLK
+extern void pm_clk_add_notifier(struct bus_type *bus,
+ struct pm_clk_notifier_block *clknb);
+#else
+static inline void pm_clk_add_notifier(struct bus_type *bus,
+ struct pm_clk_notifier_block *clknb)
+{
+}
+#endif
+
+#endif