blob: 15339b76cd94e48a694f670cf5a2abbe465db3cf [file] [log] [blame]
From b6c13121853d97beae270e74ef8e151ab20c8ec9 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Sun, 18 Dec 2011 00:34:42 +0100
Subject: PM: Drop generic_subsys_pm_ops
Since the PM core is now going to execute driver callbacks directly
if the corresponding subsystem callbacks are not present,
forward-only subsystem callbacks (i.e. such that only execute the
corresponding driver callbacks) are not necessary any more. Thus
it is possible to remove generic_subsys_pm_ops, because the only
callback in there that is not forward-only, .runtime_idle, is not
really used by the only user of generic_subsys_pm_ops, which is
vio_bus_type.
However, the generic callback routines themselves cannot be removed
from generic_ops.c, because they are used individually by a number
of subsystems.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
(cherry picked from commit 90363ddf0a1a4dccfbb8d0c10b8f488bc7fa69f8)
Signed-off-by: Simon Horman <horms@verge.net.au>
---
arch/powerpc/kernel/vio.c | 1 -
drivers/base/power/generic_ops.c | 25 -------------------------
include/linux/pm.h | 13 -------------
3 files changed, 39 deletions(-)
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1404,7 +1404,6 @@ static struct bus_type vio_bus_type = {
.match = vio_bus_match,
.probe = vio_bus_probe,
.remove = vio_bus_remove,
- .pm = GENERIC_SUBSYS_PM_OPS,
};
/**
--- a/drivers/base/power/generic_ops.c
+++ b/drivers/base/power/generic_ops.c
@@ -276,28 +276,3 @@ void pm_generic_complete(struct device *
pm_runtime_idle(dev);
}
#endif /* CONFIG_PM_SLEEP */
-
-struct dev_pm_ops generic_subsys_pm_ops = {
-#ifdef CONFIG_PM_SLEEP
- .prepare = pm_generic_prepare,
- .suspend = pm_generic_suspend,
- .suspend_noirq = pm_generic_suspend_noirq,
- .resume = pm_generic_resume,
- .resume_noirq = pm_generic_resume_noirq,
- .freeze = pm_generic_freeze,
- .freeze_noirq = pm_generic_freeze_noirq,
- .thaw = pm_generic_thaw,
- .thaw_noirq = pm_generic_thaw_noirq,
- .poweroff = pm_generic_poweroff,
- .poweroff_noirq = pm_generic_poweroff_noirq,
- .restore = pm_generic_restore,
- .restore_noirq = pm_generic_restore_noirq,
- .complete = pm_generic_complete,
-#endif
-#ifdef CONFIG_PM_RUNTIME
- .runtime_suspend = pm_generic_runtime_suspend,
- .runtime_resume = pm_generic_runtime_resume,
- .runtime_idle = pm_generic_runtime_idle,
-#endif
-};
-EXPORT_SYMBOL_GPL(generic_subsys_pm_ops);
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -300,19 +300,6 @@ const struct dev_pm_ops name = { \
SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
}
-/*
- * Use this for subsystems (bus types, device types, device classes) that don't
- * need any special suspend/resume handling in addition to invoking the PM
- * callbacks provided by device drivers supporting both the system sleep PM and
- * runtime PM, make the pm member point to generic_subsys_pm_ops.
- */
-#ifdef CONFIG_PM
-extern struct dev_pm_ops generic_subsys_pm_ops;
-#define GENERIC_SUBSYS_PM_OPS (&generic_subsys_pm_ops)
-#else
-#define GENERIC_SUBSYS_PM_OPS NULL
-#endif
-
/**
* PM_EVENT_ messages
*