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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-10-21 13:09:18 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-10-21 13:09:18 +0200
commita2ab5fc41533c952706ebdfaa378bb746e535cc1 (patch)
tree9fb86bb4e9ecb67f7e651d284c2f12c6c5d4378f /drivers/base
parentPM / core: Drop legacy class suspend/resume operations (diff)
parentPM / sleep: Remove pm_complete_with_resume_check() (diff)
downloadlinux-a2ab5fc41533c952706ebdfaa378bb746e535cc1.tar.xz
linux-a2ab5fc41533c952706ebdfaa378bb746e535cc1.zip
Merge branch 'pm-sleep' into pm-core
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/arch_topology.c12
-rw-r--r--drivers/base/platform.c3
-rw-r--r--drivers/base/power/generic_ops.c23
-rw-r--r--drivers/base/power/opp/core.c7
4 files changed, 15 insertions, 30 deletions
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 41be9ff7d70a..6df7d6676a48 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -166,11 +166,11 @@ bool __init topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu)
}
#ifdef CONFIG_CPU_FREQ
-static cpumask_var_t cpus_to_visit;
-static void parsing_done_workfn(struct work_struct *work);
-static DECLARE_WORK(parsing_done_work, parsing_done_workfn);
+static cpumask_var_t cpus_to_visit __initdata;
+static void __init parsing_done_workfn(struct work_struct *work);
+static __initdata DECLARE_WORK(parsing_done_work, parsing_done_workfn);
-static int
+static int __init
init_cpu_capacity_callback(struct notifier_block *nb,
unsigned long val,
void *data)
@@ -206,7 +206,7 @@ init_cpu_capacity_callback(struct notifier_block *nb,
return 0;
}
-static struct notifier_block init_cpu_capacity_notifier = {
+static struct notifier_block init_cpu_capacity_notifier __initdata = {
.notifier_call = init_cpu_capacity_callback,
};
@@ -232,7 +232,7 @@ static int __init register_cpufreq_notifier(void)
}
core_initcall(register_cpufreq_notifier);
-static void parsing_done_workfn(struct work_struct *work)
+static void __init parsing_done_workfn(struct work_struct *work)
{
cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
CPUFREQ_POLICY_NOTIFIER);
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index d1bd99271066..9045c5f3734e 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -868,7 +868,8 @@ static ssize_t driver_override_store(struct device *dev,
struct platform_device *pdev = to_platform_device(dev);
char *driver_override, *old, *cp;
- if (count > PATH_MAX)
+ /* We need to keep extra room for a newline */
+ if (count >= (PAGE_SIZE - 1))
return -EINVAL;
driver_override = kstrndup(buf, count, GFP_KERNEL);
diff --git a/drivers/base/power/generic_ops.c b/drivers/base/power/generic_ops.c
index 07c3c4a9522d..b2ed606265a8 100644
--- a/drivers/base/power/generic_ops.c
+++ b/drivers/base/power/generic_ops.c
@@ -9,7 +9,6 @@
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/export.h>
-#include <linux/suspend.h>
#ifdef CONFIG_PM
/**
@@ -298,26 +297,4 @@ void pm_generic_complete(struct device *dev)
if (drv && drv->pm && drv->pm->complete)
drv->pm->complete(dev);
}
-
-/**
- * pm_complete_with_resume_check - Complete a device power transition.
- * @dev: Device to handle.
- *
- * Complete a device power transition during a system-wide power transition and
- * optionally schedule a runtime resume of the device if the system resume in
- * progress has been initated by the platform firmware and the device had its
- * power.direct_complete flag set.
- */
-void pm_complete_with_resume_check(struct device *dev)
-{
- pm_generic_complete(dev);
- /*
- * If the device had been runtime-suspended before the system went into
- * the sleep state it is going out of and it has never been resumed till
- * now, resume it in case the firmware powered it up.
- */
- if (dev->power.direct_complete && pm_resume_via_firmware())
- pm_request_resume(dev);
-}
-EXPORT_SYMBOL_GPL(pm_complete_with_resume_check);
#endif /* CONFIG_PM_SLEEP */
diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c
index a8cc14fd8ae4..a6de32530693 100644
--- a/drivers/base/power/opp/core.c
+++ b/drivers/base/power/opp/core.c
@@ -1581,6 +1581,9 @@ static int _opp_set_availability(struct device *dev, unsigned long freq,
opp->available = availability_req;
+ dev_pm_opp_get(opp);
+ mutex_unlock(&opp_table->lock);
+
/* Notify the change of the OPP availability */
if (availability_req)
blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ENABLE,
@@ -1589,8 +1592,12 @@ static int _opp_set_availability(struct device *dev, unsigned long freq,
blocking_notifier_call_chain(&opp_table->head,
OPP_EVENT_DISABLE, opp);
+ dev_pm_opp_put(opp);
+ goto put_table;
+
unlock:
mutex_unlock(&opp_table->lock);
+put_table:
dev_pm_opp_put_opp_table(opp_table);
return r;
}