mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
![Geert Uytterhoeven](/assets/img/avatar_default.png)
The existing pm_clk_add() allows to pass a clock by con_id. However, when referring to a specific clock from DT, no con_id is available. Add pm_clk_add_clk(), which allows to specify the struct clk * directly. The will will increment refcount on clock pointer, so the caller has to use clk_put() on clock pointer when done. Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
/*
|
|
* 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_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 void pm_clk_remove(struct device *dev, const char *con_id);
|
|
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 void pm_clk_remove(struct device *dev, const char *con_id)
|
|
{
|
|
}
|
|
#define pm_clk_suspend NULL
|
|
#define pm_clk_resume NULL
|
|
#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
|