linux-stable/include/linux/pm_clock.h
Thomas Gleixner 55716d2643 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
Based on 1 normalized pattern(s):

  this file is released under the gplv2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 68 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190114.292346262@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:16 +02:00

98 lines
2.4 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);
#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