Merge branch 'pm-domains' into for-linus
* pm-domains: (33 commits) ARM / shmobile: Return -EBUSY from A4LC power off if A3RV is active PM / Domains: Take .power_off() error code into account ARM / shmobile: Use genpd_queue_power_off_work() ARM / shmobile: Use pm_genpd_poweroff_unused() PM / Domains: Introduce function to power off all unused PM domains PM / Domains: Queue up power off work only if it is not pending PM / Domains: Improve handling of wakeup devices during system suspend PM / Domains: Do not restore all devices on power off error PM / Domains: Allow callbacks to execute all runtime PM helpers PM / Domains: Do not execute device callbacks under locks PM / Domains: Make failing pm_genpd_prepare() clean up properly PM / Domains: Set device state to "active" during system resume ARM: mach-shmobile: sh7372 A3RV requires A4LC PM / Domains: Export pm_genpd_poweron() in header ARM: mach-shmobile: sh7372 late pm domain off ARM: mach-shmobile: Runtime PM late init callback ARM: mach-shmobile: sh7372 D4 support ARM: mach-shmobile: sh7372 A4MP support ARM: mach-shmobile: sh7372: make sure that fsi is peripheral of spu2 ARM: mach-shmobile: sh7372 A3SG support ...
This commit is contained in:
@@ -3,6 +3,7 @@ obj-$(CONFIG_PM_SLEEP) += main.o wakeup.o
|
||||
obj-$(CONFIG_PM_RUNTIME) += runtime.o
|
||||
obj-$(CONFIG_PM_TRACE_RTC) += trace.o
|
||||
obj-$(CONFIG_PM_OPP) += opp.o
|
||||
obj-$(CONFIG_PM_GENERIC_DOMAINS) += domain.o
|
||||
obj-$(CONFIG_HAVE_CLK) += clock_ops.o
|
||||
|
||||
ccflags-$(CONFIG_DEBUG_DRIVER) := -DDEBUG
|
||||
@@ -15,9 +15,9 @@
|
||||
#include <linux/slab.h>
|
||||
#include <linux/err.h>
|
||||
|
||||
#ifdef CONFIG_PM_RUNTIME
|
||||
#ifdef CONFIG_PM
|
||||
|
||||
struct pm_runtime_clk_data {
|
||||
struct pm_clk_data {
|
||||
struct list_head clock_list;
|
||||
struct mutex lock;
|
||||
};
|
||||
@@ -36,25 +36,25 @@ struct pm_clock_entry {
|
||||
enum pce_status status;
|
||||
};
|
||||
|
||||
static struct pm_runtime_clk_data *__to_prd(struct device *dev)
|
||||
static struct pm_clk_data *__to_pcd(struct device *dev)
|
||||
{
|
||||
return dev ? dev->power.subsys_data : NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_runtime_clk_add - Start using a device clock for runtime PM.
|
||||
* @dev: Device whose clock is going to be used for runtime PM.
|
||||
* pm_clk_add - Start using a device clock for power management.
|
||||
* @dev: Device whose clock is going to be used for power management.
|
||||
* @con_id: Connection ID of the clock.
|
||||
*
|
||||
* Add the clock represented by @con_id to the list of clocks used for
|
||||
* the runtime PM of @dev.
|
||||
* the power management of @dev.
|
||||
*/
|
||||
int pm_runtime_clk_add(struct device *dev, const char *con_id)
|
||||
int pm_clk_add(struct device *dev, const char *con_id)
|
||||
{
|
||||
struct pm_runtime_clk_data *prd = __to_prd(dev);
|
||||
struct pm_clk_data *pcd = __to_pcd(dev);
|
||||
struct pm_clock_entry *ce;
|
||||
|
||||
if (!prd)
|
||||
if (!pcd)
|
||||
return -EINVAL;
|
||||
|
||||
ce = kzalloc(sizeof(*ce), GFP_KERNEL);
|
||||
@@ -73,20 +73,20 @@ int pm_runtime_clk_add(struct device *dev, const char *con_id)
|
||||
}
|
||||
}
|
||||
|
||||
mutex_lock(&prd->lock);
|
||||
list_add_tail(&ce->node, &prd->clock_list);
|
||||
mutex_unlock(&prd->lock);
|
||||
mutex_lock(&pcd->lock);
|
||||
list_add_tail(&ce->node, &pcd->clock_list);
|
||||
mutex_unlock(&pcd->lock);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* __pm_runtime_clk_remove - Destroy runtime PM clock entry.
|
||||
* @ce: Runtime PM clock entry to destroy.
|
||||
* __pm_clk_remove - Destroy PM clock entry.
|
||||
* @ce: PM clock entry to destroy.
|
||||
*
|
||||
* This routine must be called under the mutex protecting the runtime PM list
|
||||
* of clocks corresponding the the @ce's device.
|
||||
* This routine must be called under the mutex protecting the PM list of clocks
|
||||
* corresponding the the @ce's device.
|
||||
*/
|
||||
static void __pm_runtime_clk_remove(struct pm_clock_entry *ce)
|
||||
static void __pm_clk_remove(struct pm_clock_entry *ce)
|
||||
{
|
||||
if (!ce)
|
||||
return;
|
||||
@@ -108,95 +108,99 @@ static void __pm_runtime_clk_remove(struct pm_clock_entry *ce)
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_runtime_clk_remove - Stop using a device clock for runtime PM.
|
||||
* @dev: Device whose clock should not be used for runtime PM any more.
|
||||
* pm_clk_remove - Stop using a device clock for power management.
|
||||
* @dev: Device whose clock should not be used for PM any more.
|
||||
* @con_id: Connection ID of the clock.
|
||||
*
|
||||
* Remove the clock represented by @con_id from the list of clocks used for
|
||||
* the runtime PM of @dev.
|
||||
* the power management of @dev.
|
||||
*/
|
||||
void pm_runtime_clk_remove(struct device *dev, const char *con_id)
|
||||
void pm_clk_remove(struct device *dev, const char *con_id)
|
||||
{
|
||||
struct pm_runtime_clk_data *prd = __to_prd(dev);
|
||||
struct pm_clk_data *pcd = __to_pcd(dev);
|
||||
struct pm_clock_entry *ce;
|
||||
|
||||
if (!prd)
|
||||
if (!pcd)
|
||||
return;
|
||||
|
||||
mutex_lock(&prd->lock);
|
||||
mutex_lock(&pcd->lock);
|
||||
|
||||
list_for_each_entry(ce, &prd->clock_list, node) {
|
||||
list_for_each_entry(ce, &pcd->clock_list, node) {
|
||||
if (!con_id && !ce->con_id) {
|
||||
__pm_runtime_clk_remove(ce);
|
||||
__pm_clk_remove(ce);
|
||||
break;
|
||||
} else if (!con_id || !ce->con_id) {
|
||||
continue;
|
||||
} else if (!strcmp(con_id, ce->con_id)) {
|
||||
__pm_runtime_clk_remove(ce);
|
||||
__pm_clk_remove(ce);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
mutex_unlock(&prd->lock);
|
||||
mutex_unlock(&pcd->lock);
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_runtime_clk_init - Initialize a device's list of runtime PM clocks.
|
||||
* @dev: Device to initialize the list of runtime PM clocks for.
|
||||
* pm_clk_init - Initialize a device's list of power management clocks.
|
||||
* @dev: Device to initialize the list of PM clocks for.
|
||||
*
|
||||
* Allocate a struct pm_runtime_clk_data object, initialize its lock member and
|
||||
* Allocate a struct pm_clk_data object, initialize its lock member and
|
||||
* make the @dev's power.subsys_data field point to it.
|
||||
*/
|
||||
int pm_runtime_clk_init(struct device *dev)
|
||||
int pm_clk_init(struct device *dev)
|
||||
{
|
||||
struct pm_runtime_clk_data *prd;
|
||||
struct pm_clk_data *pcd;
|
||||
|
||||
prd = kzalloc(sizeof(*prd), GFP_KERNEL);
|
||||
if (!prd) {
|
||||
dev_err(dev, "Not enough memory fo runtime PM data.\n");
|
||||
pcd = kzalloc(sizeof(*pcd), GFP_KERNEL);
|
||||
if (!pcd) {
|
||||
dev_err(dev, "Not enough memory for PM clock data.\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
INIT_LIST_HEAD(&prd->clock_list);
|
||||
mutex_init(&prd->lock);
|
||||
dev->power.subsys_data = prd;
|
||||
INIT_LIST_HEAD(&pcd->clock_list);
|
||||
mutex_init(&pcd->lock);
|
||||
dev->power.subsys_data = pcd;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_runtime_clk_destroy - Destroy a device's list of runtime PM clocks.
|
||||
* @dev: Device to destroy the list of runtime PM clocks for.
|
||||
* pm_clk_destroy - Destroy a device's list of power management clocks.
|
||||
* @dev: Device to destroy the list of PM clocks for.
|
||||
*
|
||||
* Clear the @dev's power.subsys_data field, remove the list of clock entries
|
||||
* from the struct pm_runtime_clk_data object pointed to by it before and free
|
||||
* from the struct pm_clk_data object pointed to by it before and free
|
||||
* that object.
|
||||
*/
|
||||
void pm_runtime_clk_destroy(struct device *dev)
|
||||
void pm_clk_destroy(struct device *dev)
|
||||
{
|
||||
struct pm_runtime_clk_data *prd = __to_prd(dev);
|
||||
struct pm_clk_data *pcd = __to_pcd(dev);
|
||||
struct pm_clock_entry *ce, *c;
|
||||
|
||||
if (!prd)
|
||||
if (!pcd)
|
||||
return;
|
||||
|
||||
dev->power.subsys_data = NULL;
|
||||
|
||||
mutex_lock(&prd->lock);
|
||||
mutex_lock(&pcd->lock);
|
||||
|
||||
list_for_each_entry_safe_reverse(ce, c, &prd->clock_list, node)
|
||||
__pm_runtime_clk_remove(ce);
|
||||
list_for_each_entry_safe_reverse(ce, c, &pcd->clock_list, node)
|
||||
__pm_clk_remove(ce);
|
||||
|
||||
mutex_unlock(&prd->lock);
|
||||
mutex_unlock(&pcd->lock);
|
||||
|
||||
kfree(prd);
|
||||
kfree(pcd);
|
||||
}
|
||||
|
||||
#endif /* CONFIG_PM */
|
||||
|
||||
#ifdef CONFIG_PM_RUNTIME
|
||||
|
||||
/**
|
||||
* pm_runtime_clk_acquire - Acquire a device clock.
|
||||
* pm_clk_acquire - Acquire a device clock.
|
||||
* @dev: Device whose clock is to be acquired.
|
||||
* @con_id: Connection ID of the clock.
|
||||
*/
|
||||
static void pm_runtime_clk_acquire(struct device *dev,
|
||||
static void pm_clk_acquire(struct device *dev,
|
||||
struct pm_clock_entry *ce)
|
||||
{
|
||||
ce->clk = clk_get(dev, ce->con_id);
|
||||
@@ -209,24 +213,24 @@ static void pm_runtime_clk_acquire(struct device *dev,
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_runtime_clk_suspend - Disable clocks in a device's runtime PM clock list.
|
||||
* pm_clk_suspend - Disable clocks in a device's PM clock list.
|
||||
* @dev: Device to disable the clocks for.
|
||||
*/
|
||||
int pm_runtime_clk_suspend(struct device *dev)
|
||||
int pm_clk_suspend(struct device *dev)
|
||||
{
|
||||
struct pm_runtime_clk_data *prd = __to_prd(dev);
|
||||
struct pm_clk_data *pcd = __to_pcd(dev);
|
||||
struct pm_clock_entry *ce;
|
||||
|
||||
dev_dbg(dev, "%s()\n", __func__);
|
||||
|
||||
if (!prd)
|
||||
if (!pcd)
|
||||
return 0;
|
||||
|
||||
mutex_lock(&prd->lock);
|
||||
mutex_lock(&pcd->lock);
|
||||
|
||||
list_for_each_entry_reverse(ce, &prd->clock_list, node) {
|
||||
list_for_each_entry_reverse(ce, &pcd->clock_list, node) {
|
||||
if (ce->status == PCE_STATUS_NONE)
|
||||
pm_runtime_clk_acquire(dev, ce);
|
||||
pm_clk_acquire(dev, ce);
|
||||
|
||||
if (ce->status < PCE_STATUS_ERROR) {
|
||||
clk_disable(ce->clk);
|
||||
@@ -234,30 +238,30 @@ int pm_runtime_clk_suspend(struct device *dev)
|
||||
}
|
||||
}
|
||||
|
||||
mutex_unlock(&prd->lock);
|
||||
mutex_unlock(&pcd->lock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_runtime_clk_resume - Enable clocks in a device's runtime PM clock list.
|
||||
* pm_clk_resume - Enable clocks in a device's PM clock list.
|
||||
* @dev: Device to enable the clocks for.
|
||||
*/
|
||||
int pm_runtime_clk_resume(struct device *dev)
|
||||
int pm_clk_resume(struct device *dev)
|
||||
{
|
||||
struct pm_runtime_clk_data *prd = __to_prd(dev);
|
||||
struct pm_clk_data *pcd = __to_pcd(dev);
|
||||
struct pm_clock_entry *ce;
|
||||
|
||||
dev_dbg(dev, "%s()\n", __func__);
|
||||
|
||||
if (!prd)
|
||||
if (!pcd)
|
||||
return 0;
|
||||
|
||||
mutex_lock(&prd->lock);
|
||||
mutex_lock(&pcd->lock);
|
||||
|
||||
list_for_each_entry(ce, &prd->clock_list, node) {
|
||||
list_for_each_entry(ce, &pcd->clock_list, node) {
|
||||
if (ce->status == PCE_STATUS_NONE)
|
||||
pm_runtime_clk_acquire(dev, ce);
|
||||
pm_clk_acquire(dev, ce);
|
||||
|
||||
if (ce->status < PCE_STATUS_ERROR) {
|
||||
clk_enable(ce->clk);
|
||||
@@ -265,28 +269,28 @@ int pm_runtime_clk_resume(struct device *dev)
|
||||
}
|
||||
}
|
||||
|
||||
mutex_unlock(&prd->lock);
|
||||
mutex_unlock(&pcd->lock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_runtime_clk_notify - Notify routine for device addition and removal.
|
||||
* pm_clk_notify - Notify routine for device addition and removal.
|
||||
* @nb: Notifier block object this function is a member of.
|
||||
* @action: Operation being carried out by the caller.
|
||||
* @data: Device the routine is being run for.
|
||||
*
|
||||
* For this function to work, @nb must be a member of an object of type
|
||||
* struct pm_clk_notifier_block containing all of the requisite data.
|
||||
* Specifically, the pwr_domain member of that object is copied to the device's
|
||||
* pwr_domain field and its con_ids member is used to populate the device's list
|
||||
* of runtime PM clocks, depending on @action.
|
||||
* Specifically, the pm_domain member of that object is copied to the device's
|
||||
* pm_domain field and its con_ids member is used to populate the device's list
|
||||
* of PM clocks, depending on @action.
|
||||
*
|
||||
* If the device's pwr_domain field is already populated with a value different
|
||||
* If the device's pm_domain field is already populated with a value different
|
||||
* from the one stored in the struct pm_clk_notifier_block object, the function
|
||||
* does nothing.
|
||||
*/
|
||||
static int pm_runtime_clk_notify(struct notifier_block *nb,
|
||||
static int pm_clk_notify(struct notifier_block *nb,
|
||||
unsigned long action, void *data)
|
||||
{
|
||||
struct pm_clk_notifier_block *clknb;
|
||||
@@ -300,28 +304,28 @@ static int pm_runtime_clk_notify(struct notifier_block *nb,
|
||||
|
||||
switch (action) {
|
||||
case BUS_NOTIFY_ADD_DEVICE:
|
||||
if (dev->pwr_domain)
|
||||
if (dev->pm_domain)
|
||||
break;
|
||||
|
||||
error = pm_runtime_clk_init(dev);
|
||||
error = pm_clk_init(dev);
|
||||
if (error)
|
||||
break;
|
||||
|
||||
dev->pwr_domain = clknb->pwr_domain;
|
||||
dev->pm_domain = clknb->pm_domain;
|
||||
if (clknb->con_ids[0]) {
|
||||
for (con_id = clknb->con_ids; *con_id; con_id++)
|
||||
pm_runtime_clk_add(dev, *con_id);
|
||||
pm_clk_add(dev, *con_id);
|
||||
} else {
|
||||
pm_runtime_clk_add(dev, NULL);
|
||||
pm_clk_add(dev, NULL);
|
||||
}
|
||||
|
||||
break;
|
||||
case BUS_NOTIFY_DEL_DEVICE:
|
||||
if (dev->pwr_domain != clknb->pwr_domain)
|
||||
if (dev->pm_domain != clknb->pm_domain)
|
||||
break;
|
||||
|
||||
dev->pwr_domain = NULL;
|
||||
pm_runtime_clk_destroy(dev);
|
||||
dev->pm_domain = NULL;
|
||||
pm_clk_destroy(dev);
|
||||
break;
|
||||
}
|
||||
|
||||
@@ -330,6 +334,60 @@ static int pm_runtime_clk_notify(struct notifier_block *nb,
|
||||
|
||||
#else /* !CONFIG_PM_RUNTIME */
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
|
||||
/**
|
||||
* pm_clk_suspend - Disable clocks in a device's PM clock list.
|
||||
* @dev: Device to disable the clocks for.
|
||||
*/
|
||||
int pm_clk_suspend(struct device *dev)
|
||||
{
|
||||
struct pm_clk_data *pcd = __to_pcd(dev);
|
||||
struct pm_clock_entry *ce;
|
||||
|
||||
dev_dbg(dev, "%s()\n", __func__);
|
||||
|
||||
/* If there is no driver, the clocks are already disabled. */
|
||||
if (!pcd || !dev->driver)
|
||||
return 0;
|
||||
|
||||
mutex_lock(&pcd->lock);
|
||||
|
||||
list_for_each_entry_reverse(ce, &pcd->clock_list, node)
|
||||
clk_disable(ce->clk);
|
||||
|
||||
mutex_unlock(&pcd->lock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_clk_resume - Enable clocks in a device's PM clock list.
|
||||
* @dev: Device to enable the clocks for.
|
||||
*/
|
||||
int pm_clk_resume(struct device *dev)
|
||||
{
|
||||
struct pm_clk_data *pcd = __to_pcd(dev);
|
||||
struct pm_clock_entry *ce;
|
||||
|
||||
dev_dbg(dev, "%s()\n", __func__);
|
||||
|
||||
/* If there is no driver, the clocks should remain disabled. */
|
||||
if (!pcd || !dev->driver)
|
||||
return 0;
|
||||
|
||||
mutex_lock(&pcd->lock);
|
||||
|
||||
list_for_each_entry(ce, &pcd->clock_list, node)
|
||||
clk_enable(ce->clk);
|
||||
|
||||
mutex_unlock(&pcd->lock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_PM */
|
||||
|
||||
/**
|
||||
* enable_clock - Enable a device clock.
|
||||
* @dev: Device whose clock is to be enabled.
|
||||
@@ -365,7 +423,7 @@ static void disable_clock(struct device *dev, const char *con_id)
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_runtime_clk_notify - Notify routine for device addition and removal.
|
||||
* pm_clk_notify - Notify routine for device addition and removal.
|
||||
* @nb: Notifier block object this function is a member of.
|
||||
* @action: Operation being carried out by the caller.
|
||||
* @data: Device the routine is being run for.
|
||||
@@ -375,7 +433,7 @@ static void disable_clock(struct device *dev, const char *con_id)
|
||||
* Specifically, the con_ids member of that object is used to enable or disable
|
||||
* the device's clocks, depending on @action.
|
||||
*/
|
||||
static int pm_runtime_clk_notify(struct notifier_block *nb,
|
||||
static int pm_clk_notify(struct notifier_block *nb,
|
||||
unsigned long action, void *data)
|
||||
{
|
||||
struct pm_clk_notifier_block *clknb;
|
||||
@@ -411,21 +469,21 @@ static int pm_runtime_clk_notify(struct notifier_block *nb,
|
||||
#endif /* !CONFIG_PM_RUNTIME */
|
||||
|
||||
/**
|
||||
* pm_runtime_clk_add_notifier - Add bus type notifier for runtime PM clocks.
|
||||
* pm_clk_add_notifier - Add bus type notifier for power management clocks.
|
||||
* @bus: Bus type to add the notifier to.
|
||||
* @clknb: Notifier to be added to the given bus type.
|
||||
*
|
||||
* The nb member of @clknb is not expected to be initialized and its
|
||||
* notifier_call member will be replaced with pm_runtime_clk_notify(). However,
|
||||
* notifier_call member will be replaced with pm_clk_notify(). However,
|
||||
* the remaining members of @clknb should be populated prior to calling this
|
||||
* routine.
|
||||
*/
|
||||
void pm_runtime_clk_add_notifier(struct bus_type *bus,
|
||||
void pm_clk_add_notifier(struct bus_type *bus,
|
||||
struct pm_clk_notifier_block *clknb)
|
||||
{
|
||||
if (!bus || !clknb)
|
||||
return;
|
||||
|
||||
clknb->nb.notifier_call = pm_runtime_clk_notify;
|
||||
clknb->nb.notifier_call = pm_clk_notify;
|
||||
bus_register_notifier(bus, &clknb->nb);
|
||||
}
|
||||
|
||||
1273
drivers/base/power/domain.c
Normal file
1273
drivers/base/power/domain.c
Normal file
File diff suppressed because it is too large
Load Diff
@@ -94,12 +94,13 @@ int pm_generic_prepare(struct device *dev)
|
||||
* __pm_generic_call - Generic suspend/freeze/poweroff/thaw subsystem callback.
|
||||
* @dev: Device to handle.
|
||||
* @event: PM transition of the system under way.
|
||||
* @bool: Whether or not this is the "noirq" stage.
|
||||
*
|
||||
* If the device has not been suspended at run time, execute the
|
||||
* suspend/freeze/poweroff/thaw callback provided by its driver, if defined, and
|
||||
* return its error code. Otherwise, return zero.
|
||||
*/
|
||||
static int __pm_generic_call(struct device *dev, int event)
|
||||
static int __pm_generic_call(struct device *dev, int event, bool noirq)
|
||||
{
|
||||
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
|
||||
int (*callback)(struct device *);
|
||||
@@ -109,16 +110,16 @@ static int __pm_generic_call(struct device *dev, int event)
|
||||
|
||||
switch (event) {
|
||||
case PM_EVENT_SUSPEND:
|
||||
callback = pm->suspend;
|
||||
callback = noirq ? pm->suspend_noirq : pm->suspend;
|
||||
break;
|
||||
case PM_EVENT_FREEZE:
|
||||
callback = pm->freeze;
|
||||
callback = noirq ? pm->freeze_noirq : pm->freeze;
|
||||
break;
|
||||
case PM_EVENT_HIBERNATE:
|
||||
callback = pm->poweroff;
|
||||
callback = noirq ? pm->poweroff_noirq : pm->poweroff;
|
||||
break;
|
||||
case PM_EVENT_THAW:
|
||||
callback = pm->thaw;
|
||||
callback = noirq ? pm->thaw_noirq : pm->thaw;
|
||||
break;
|
||||
default:
|
||||
callback = NULL;
|
||||
@@ -128,43 +129,83 @@ static int __pm_generic_call(struct device *dev, int event)
|
||||
return callback ? callback(dev) : 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_generic_suspend_noirq - Generic suspend_noirq callback for subsystems.
|
||||
* @dev: Device to suspend.
|
||||
*/
|
||||
int pm_generic_suspend_noirq(struct device *dev)
|
||||
{
|
||||
return __pm_generic_call(dev, PM_EVENT_SUSPEND, true);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_suspend_noirq);
|
||||
|
||||
/**
|
||||
* pm_generic_suspend - Generic suspend callback for subsystems.
|
||||
* @dev: Device to suspend.
|
||||
*/
|
||||
int pm_generic_suspend(struct device *dev)
|
||||
{
|
||||
return __pm_generic_call(dev, PM_EVENT_SUSPEND);
|
||||
return __pm_generic_call(dev, PM_EVENT_SUSPEND, false);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_suspend);
|
||||
|
||||
/**
|
||||
* pm_generic_freeze_noirq - Generic freeze_noirq callback for subsystems.
|
||||
* @dev: Device to freeze.
|
||||
*/
|
||||
int pm_generic_freeze_noirq(struct device *dev)
|
||||
{
|
||||
return __pm_generic_call(dev, PM_EVENT_FREEZE, true);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_freeze_noirq);
|
||||
|
||||
/**
|
||||
* pm_generic_freeze - Generic freeze callback for subsystems.
|
||||
* @dev: Device to freeze.
|
||||
*/
|
||||
int pm_generic_freeze(struct device *dev)
|
||||
{
|
||||
return __pm_generic_call(dev, PM_EVENT_FREEZE);
|
||||
return __pm_generic_call(dev, PM_EVENT_FREEZE, false);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_freeze);
|
||||
|
||||
/**
|
||||
* pm_generic_poweroff_noirq - Generic poweroff_noirq callback for subsystems.
|
||||
* @dev: Device to handle.
|
||||
*/
|
||||
int pm_generic_poweroff_noirq(struct device *dev)
|
||||
{
|
||||
return __pm_generic_call(dev, PM_EVENT_HIBERNATE, true);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_poweroff_noirq);
|
||||
|
||||
/**
|
||||
* pm_generic_poweroff - Generic poweroff callback for subsystems.
|
||||
* @dev: Device to handle.
|
||||
*/
|
||||
int pm_generic_poweroff(struct device *dev)
|
||||
{
|
||||
return __pm_generic_call(dev, PM_EVENT_HIBERNATE);
|
||||
return __pm_generic_call(dev, PM_EVENT_HIBERNATE, false);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_poweroff);
|
||||
|
||||
/**
|
||||
* pm_generic_thaw_noirq - Generic thaw_noirq callback for subsystems.
|
||||
* @dev: Device to thaw.
|
||||
*/
|
||||
int pm_generic_thaw_noirq(struct device *dev)
|
||||
{
|
||||
return __pm_generic_call(dev, PM_EVENT_THAW, true);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_thaw_noirq);
|
||||
|
||||
/**
|
||||
* pm_generic_thaw - Generic thaw callback for subsystems.
|
||||
* @dev: Device to thaw.
|
||||
*/
|
||||
int pm_generic_thaw(struct device *dev)
|
||||
{
|
||||
return __pm_generic_call(dev, PM_EVENT_THAW);
|
||||
return __pm_generic_call(dev, PM_EVENT_THAW, false);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_thaw);
|
||||
|
||||
@@ -172,12 +213,13 @@ EXPORT_SYMBOL_GPL(pm_generic_thaw);
|
||||
* __pm_generic_resume - Generic resume/restore callback for subsystems.
|
||||
* @dev: Device to handle.
|
||||
* @event: PM transition of the system under way.
|
||||
* @bool: Whether or not this is the "noirq" stage.
|
||||
*
|
||||
* Execute the resume/resotre callback provided by the @dev's driver, if
|
||||
* defined. If it returns 0, change the device's runtime PM status to 'active'.
|
||||
* Return the callback's error code.
|
||||
*/
|
||||
static int __pm_generic_resume(struct device *dev, int event)
|
||||
static int __pm_generic_resume(struct device *dev, int event, bool noirq)
|
||||
{
|
||||
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
|
||||
int (*callback)(struct device *);
|
||||
@@ -188,10 +230,10 @@ static int __pm_generic_resume(struct device *dev, int event)
|
||||
|
||||
switch (event) {
|
||||
case PM_EVENT_RESUME:
|
||||
callback = pm->resume;
|
||||
callback = noirq ? pm->resume_noirq : pm->resume;
|
||||
break;
|
||||
case PM_EVENT_RESTORE:
|
||||
callback = pm->restore;
|
||||
callback = noirq ? pm->restore_noirq : pm->restore;
|
||||
break;
|
||||
default:
|
||||
callback = NULL;
|
||||
@@ -202,7 +244,7 @@ static int __pm_generic_resume(struct device *dev, int event)
|
||||
return 0;
|
||||
|
||||
ret = callback(dev);
|
||||
if (!ret && pm_runtime_enabled(dev)) {
|
||||
if (!ret && !noirq && pm_runtime_enabled(dev)) {
|
||||
pm_runtime_disable(dev);
|
||||
pm_runtime_set_active(dev);
|
||||
pm_runtime_enable(dev);
|
||||
@@ -211,23 +253,43 @@ static int __pm_generic_resume(struct device *dev, int event)
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* pm_generic_resume_noirq - Generic resume_noirq callback for subsystems.
|
||||
* @dev: Device to resume.
|
||||
*/
|
||||
int pm_generic_resume_noirq(struct device *dev)
|
||||
{
|
||||
return __pm_generic_resume(dev, PM_EVENT_RESUME, true);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_resume_noirq);
|
||||
|
||||
/**
|
||||
* pm_generic_resume - Generic resume callback for subsystems.
|
||||
* @dev: Device to resume.
|
||||
*/
|
||||
int pm_generic_resume(struct device *dev)
|
||||
{
|
||||
return __pm_generic_resume(dev, PM_EVENT_RESUME);
|
||||
return __pm_generic_resume(dev, PM_EVENT_RESUME, false);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_resume);
|
||||
|
||||
/**
|
||||
* pm_generic_restore_noirq - Generic restore_noirq callback for subsystems.
|
||||
* @dev: Device to restore.
|
||||
*/
|
||||
int pm_generic_restore_noirq(struct device *dev)
|
||||
{
|
||||
return __pm_generic_resume(dev, PM_EVENT_RESTORE, true);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_restore_noirq);
|
||||
|
||||
/**
|
||||
* pm_generic_restore - Generic restore callback for subsystems.
|
||||
* @dev: Device to restore.
|
||||
*/
|
||||
int pm_generic_restore(struct device *dev)
|
||||
{
|
||||
return __pm_generic_resume(dev, PM_EVENT_RESTORE);
|
||||
return __pm_generic_resume(dev, PM_EVENT_RESTORE, false);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pm_generic_restore);
|
||||
|
||||
@@ -256,11 +318,17 @@ 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
|
||||
|
||||
@@ -425,9 +425,9 @@ static int device_resume_noirq(struct device *dev, pm_message_t state)
|
||||
TRACE_DEVICE(dev);
|
||||
TRACE_RESUME(0);
|
||||
|
||||
if (dev->pwr_domain) {
|
||||
if (dev->pm_domain) {
|
||||
pm_dev_dbg(dev, state, "EARLY power domain ");
|
||||
error = pm_noirq_op(dev, &dev->pwr_domain->ops, state);
|
||||
error = pm_noirq_op(dev, &dev->pm_domain->ops, state);
|
||||
} else if (dev->type && dev->type->pm) {
|
||||
pm_dev_dbg(dev, state, "EARLY type ");
|
||||
error = pm_noirq_op(dev, dev->type->pm, state);
|
||||
@@ -521,9 +521,9 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
|
||||
if (!dev->power.is_suspended)
|
||||
goto Unlock;
|
||||
|
||||
if (dev->pwr_domain) {
|
||||
if (dev->pm_domain) {
|
||||
pm_dev_dbg(dev, state, "power domain ");
|
||||
error = pm_op(dev, &dev->pwr_domain->ops, state);
|
||||
error = pm_op(dev, &dev->pm_domain->ops, state);
|
||||
goto End;
|
||||
}
|
||||
|
||||
@@ -641,10 +641,10 @@ static void device_complete(struct device *dev, pm_message_t state)
|
||||
{
|
||||
device_lock(dev);
|
||||
|
||||
if (dev->pwr_domain) {
|
||||
if (dev->pm_domain) {
|
||||
pm_dev_dbg(dev, state, "completing power domain ");
|
||||
if (dev->pwr_domain->ops.complete)
|
||||
dev->pwr_domain->ops.complete(dev);
|
||||
if (dev->pm_domain->ops.complete)
|
||||
dev->pm_domain->ops.complete(dev);
|
||||
} else if (dev->type && dev->type->pm) {
|
||||
pm_dev_dbg(dev, state, "completing type ");
|
||||
if (dev->type->pm->complete)
|
||||
@@ -744,9 +744,9 @@ static int device_suspend_noirq(struct device *dev, pm_message_t state)
|
||||
{
|
||||
int error;
|
||||
|
||||
if (dev->pwr_domain) {
|
||||
if (dev->pm_domain) {
|
||||
pm_dev_dbg(dev, state, "LATE power domain ");
|
||||
error = pm_noirq_op(dev, &dev->pwr_domain->ops, state);
|
||||
error = pm_noirq_op(dev, &dev->pm_domain->ops, state);
|
||||
if (error)
|
||||
return error;
|
||||
} else if (dev->type && dev->type->pm) {
|
||||
@@ -853,9 +853,9 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
|
||||
goto Unlock;
|
||||
}
|
||||
|
||||
if (dev->pwr_domain) {
|
||||
if (dev->pm_domain) {
|
||||
pm_dev_dbg(dev, state, "power domain ");
|
||||
error = pm_op(dev, &dev->pwr_domain->ops, state);
|
||||
error = pm_op(dev, &dev->pm_domain->ops, state);
|
||||
goto End;
|
||||
}
|
||||
|
||||
@@ -982,11 +982,11 @@ static int device_prepare(struct device *dev, pm_message_t state)
|
||||
|
||||
device_lock(dev);
|
||||
|
||||
if (dev->pwr_domain) {
|
||||
if (dev->pm_domain) {
|
||||
pm_dev_dbg(dev, state, "preparing power domain ");
|
||||
if (dev->pwr_domain->ops.prepare)
|
||||
error = dev->pwr_domain->ops.prepare(dev);
|
||||
suspend_report_result(dev->pwr_domain->ops.prepare, error);
|
||||
if (dev->pm_domain->ops.prepare)
|
||||
error = dev->pm_domain->ops.prepare(dev);
|
||||
suspend_report_result(dev->pm_domain->ops.prepare, error);
|
||||
if (error)
|
||||
goto End;
|
||||
} else if (dev->type && dev->type->pm) {
|
||||
|
||||
@@ -213,8 +213,8 @@ static int rpm_idle(struct device *dev, int rpmflags)
|
||||
|
||||
dev->power.idle_notification = true;
|
||||
|
||||
if (dev->pwr_domain)
|
||||
callback = dev->pwr_domain->ops.runtime_idle;
|
||||
if (dev->pm_domain)
|
||||
callback = dev->pm_domain->ops.runtime_idle;
|
||||
else if (dev->type && dev->type->pm)
|
||||
callback = dev->type->pm->runtime_idle;
|
||||
else if (dev->class && dev->class->pm)
|
||||
@@ -374,8 +374,8 @@ static int rpm_suspend(struct device *dev, int rpmflags)
|
||||
|
||||
__update_runtime_status(dev, RPM_SUSPENDING);
|
||||
|
||||
if (dev->pwr_domain)
|
||||
callback = dev->pwr_domain->ops.runtime_suspend;
|
||||
if (dev->pm_domain)
|
||||
callback = dev->pm_domain->ops.runtime_suspend;
|
||||
else if (dev->type && dev->type->pm)
|
||||
callback = dev->type->pm->runtime_suspend;
|
||||
else if (dev->class && dev->class->pm)
|
||||
@@ -573,8 +573,8 @@ static int rpm_resume(struct device *dev, int rpmflags)
|
||||
|
||||
__update_runtime_status(dev, RPM_RESUMING);
|
||||
|
||||
if (dev->pwr_domain)
|
||||
callback = dev->pwr_domain->ops.runtime_resume;
|
||||
if (dev->pm_domain)
|
||||
callback = dev->pm_domain->ops.runtime_resume;
|
||||
else if (dev->type && dev->type->pm)
|
||||
callback = dev->type->pm->runtime_resume;
|
||||
else if (dev->class && dev->class->pm)
|
||||
|
||||
Reference in New Issue
Block a user