From: Magnus Damm <damm@xxxxxxxxxx>
This patch contains a few fixes to allow Runtime PM
to be used even though suspend and hibernation are disabled
in the kconfig. Without this patch the Runtime PM code
compiles just fine with CONFIG_PM_SLEEP=n but the functions
pm_runtime_init() and pm_runtime_remove() never gets called
during runtime.
Not sure if CONFIG_PM_RUNTIME=y and CONFIG_PM_SLEEP=n really
is a valid combination, but I can easily imagine use cases
for Runtime PM without system suspend/hibernation support.
Signed-off-by: Magnus Damm <damm@xxxxxxxxxx>
---
drivers/base/core.c | 3 +++
drivers/base/power/main.c | 3 ---
2 files changed, 3 insertions(+), 3 deletions(-)
--- 0001/drivers/base/core.c
+++ work/drivers/base/core.c 2009-07-31 19:52:26.000000000 +0900
@@ -23,6 +23,7 @@
#include <linux/semaphore.h>
#include <linux/mutex.h>
#include <linux/async.h>
+#include <linux/pm_runtime.h>
#include "base.h"
#include "power/power.h"
@@ -555,6 +556,7 @@ void device_initialize(struct device *de
INIT_LIST_HEAD(&dev->devres_head);
device_init_wakeup(dev, 0);
device_pm_init(dev);
+ pm_runtime_init(dev);
set_dev_node(dev, -1);
}
@@ -1063,6 +1065,7 @@ void device_del(struct device *dev)
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
BUS_NOTIFY_DEL_DEVICE, dev);
device_pm_remove(dev);
+ pm_runtime_remove(dev);
dpm_sysfs_remove(dev);
if (parent)
klist_del(&dev->p->knode_parent);
--- 0015/drivers/base/power/main.c
+++ work/drivers/base/power/main.c 2009-07-31 19:52:26.000000000 +0900
@@ -56,7 +56,6 @@ static bool transition_started;
void device_pm_init(struct device *dev)
{
dev->power.status = DPM_ON;
- pm_runtime_init(dev);
}
/**
@@ -116,8 +115,6 @@ void device_pm_remove(struct device *dev
mutex_lock(&dpm_list_mtx);
list_del_init(&dev->power.entry);
mutex_unlock(&dpm_list_mtx);
-
- pm_runtime_remove(dev);
}
/**
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