PM: remove deprecated dpm_runtime_* routines
This patch (as933) removes the deprecated dpm_runtime_suspend() and dpm_runtime_resume() routines from the PM core. The only user of those routines is the PCMCIA ds driver; local replacements are added. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Stern
Greg Kroah-Hartman
Родитель
471d055804
Коммит
3f8df781fc
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@ -27,7 +27,6 @@ Who: Hans Verkuil <hverkuil@xs4all.nl> and
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---------------------------
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What: dev->power.power_state
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dpm_runtime_{suspend,resume)()
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When: July 2007
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Why: Broken design for runtime control over driver power states, confusing
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driver-internal runtime power management with: mechanisms to support
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@ -1,5 +1,5 @@
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obj-y := shutdown.o
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obj-$(CONFIG_PM) += main.o suspend.o resume.o runtime.o sysfs.o
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obj-$(CONFIG_PM) += main.o suspend.o resume.o sysfs.o
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obj-$(CONFIG_PM_TRACE) += trace.o
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ifeq ($(CONFIG_DEBUG_DRIVER),y)
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@ -62,11 +62,6 @@ extern int resume_device(struct device *);
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*/
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extern int suspend_device(struct device *, pm_message_t);
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/*
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* runtime.c
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*/
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#else /* CONFIG_PM */
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@ -1,85 +0,0 @@
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/*
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* drivers/base/power/runtime.c - Handling dynamic device power management.
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*
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* Copyright (c) 2003 Patrick Mochel
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* Copyright (c) 2003 Open Source Development Lab
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*
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*/
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#include <linux/device.h>
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#include "power.h"
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static void runtime_resume(struct device * dev)
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{
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dev_dbg(dev, "resuming\n");
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if (!dev->power.power_state.event)
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return;
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if (!resume_device(dev))
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dev->power.power_state = PMSG_ON;
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}
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/**
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* dpm_runtime_resume - Power one device back on.
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* @dev: Device.
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*
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* Bring one device back to the on state by first powering it
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* on, then restoring state. We only operate on devices that aren't
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* already on.
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* FIXME: We need to handle devices that are in an unknown state.
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*/
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void dpm_runtime_resume(struct device * dev)
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{
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mutex_lock(&dpm_mtx);
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runtime_resume(dev);
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mutex_unlock(&dpm_mtx);
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}
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EXPORT_SYMBOL(dpm_runtime_resume);
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/**
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* dpm_runtime_suspend - Put one device in low-power state.
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* @dev: Device.
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* @state: State to enter.
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*/
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int dpm_runtime_suspend(struct device * dev, pm_message_t state)
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{
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int error = 0;
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mutex_lock(&dpm_mtx);
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if (dev->power.power_state.event == state.event)
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goto Done;
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if (dev->power.power_state.event)
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runtime_resume(dev);
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if (!(error = suspend_device(dev, state)))
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dev->power.power_state = state;
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Done:
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mutex_unlock(&dpm_mtx);
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return error;
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}
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EXPORT_SYMBOL(dpm_runtime_suspend);
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#if 0
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/**
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* dpm_set_power_state - Update power_state field.
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* @dev: Device.
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* @state: Power state device is in.
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*
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* This is an update mechanism for drivers to notify the core
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* what power state a device is in. Device probing code may not
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* always be able to tell, but we need accurate information to
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* work reliably.
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*/
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void dpm_set_power_state(struct device * dev, pm_message_t state)
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{
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mutex_lock(&dpm_mtx);
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dev->power.power_state = state;
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mutex_unlock(&dpm_mtx);
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}
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#endif /* 0 */
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@ -1127,6 +1127,34 @@ static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp,
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#endif
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/************************ runtime PM support ***************************/
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static int pcmcia_dev_suspend(struct device *dev, pm_message_t state);
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static int pcmcia_dev_resume(struct device *dev);
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static int runtime_suspend(struct device *dev)
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{
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int rc;
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down(&dev->sem);
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rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND);
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up(&dev->sem);
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if (!rc)
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dev->power.power_state.event = PM_EVENT_SUSPEND;
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return rc;
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}
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static void runtime_resume(struct device *dev)
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{
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int rc;
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down(&dev->sem);
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rc = pcmcia_dev_resume(dev);
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up(&dev->sem);
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if (!rc)
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dev->power.power_state.event = PM_EVENT_ON;
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}
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/************************ per-device sysfs output ***************************/
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#define pcmcia_device_attr(field, test, format) \
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@ -1173,9 +1201,9 @@ static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute
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return -EINVAL;
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if ((!p_dev->suspended) && !strncmp(buf, "off", 3))
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ret = dpm_runtime_suspend(dev, PMSG_SUSPEND);
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ret = runtime_suspend(dev);
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else if (p_dev->suspended && !strncmp(buf, "on", 2))
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dpm_runtime_resume(dev);
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runtime_resume(dev);
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return ret ? ret : count;
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}
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@ -1312,10 +1340,10 @@ static int pcmcia_bus_suspend_callback(struct device *dev, void * _data)
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struct pcmcia_socket *skt = _data;
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struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
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if (p_dev->socket != skt)
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if (p_dev->socket != skt || p_dev->suspended)
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return 0;
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return dpm_runtime_suspend(dev, PMSG_SUSPEND);
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return runtime_suspend(dev);
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}
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static int pcmcia_bus_resume_callback(struct device *dev, void * _data)
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@ -1323,10 +1351,10 @@ static int pcmcia_bus_resume_callback(struct device *dev, void * _data)
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struct pcmcia_socket *skt = _data;
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struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
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if (p_dev->socket != skt)
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if (p_dev->socket != skt || !p_dev->suspended)
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return 0;
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dpm_runtime_resume(dev);
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runtime_resume(dev);
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return 0;
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}
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@ -284,8 +284,6 @@ extern int device_prepare_suspend(pm_message_t state);
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#define device_may_wakeup(dev) \
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(device_can_wakeup(dev) && (dev)->power.should_wakeup)
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extern int dpm_runtime_suspend(struct device *, pm_message_t);
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extern void dpm_runtime_resume(struct device *);
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extern void __suspend_report_result(const char *function, void *fn, int ret);
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#define suspend_report_result(fn, ret) \
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@ -317,15 +315,6 @@ static inline int device_suspend(pm_message_t state)
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#define device_set_wakeup_enable(dev,val) do{}while(0)
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#define device_may_wakeup(dev) (0)
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static inline int dpm_runtime_suspend(struct device * dev, pm_message_t state)
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{
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return 0;
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}
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static inline void dpm_runtime_resume(struct device * dev)
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{
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}
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#define suspend_report_result(fn, ret) do { } while (0)
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static inline int call_platform_enable_wakeup(struct device *dev, int is_on)
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