104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
||
|
|
/*
|
||
|
|
* pm_clock.h - Definitions and headers related to device clocks.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Renesas Electronics Corp.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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);
|
||
|
|
extern int devm_pm_clk_create(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)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
static inline int devm_pm_clk_create(struct device *dev)
|
||
|
|
{
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
#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
|