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[PATCH] swsusp: switch pm_message_t to struct

Browse Source 
This adds type-checking to pm_message_t, so that people can't confuse it
with int or u32.  It also allows us to fix "disk yoyo" during suspend (disk
spinning down/up/down).

[We've tried that before; since that cpufreq problems were fixed and I've
tried make allyes config and fixed resulting damage.]

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Alexander Nyberg <alexn@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Pavel Machek 2005-09-03 15:56:57 -07:00 committed by Linus Torvalds
parent 829ca9a30a
commit ca078bae81
28 changed files with 108 additions and 101 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/ppc/syslib/of_device.c
View File

@ -105,7 +105,7 @@ static int of_device_remove(struct device *dev)
return 0;
}
static int of_device_suspend(struct device *dev, u32 state)
static int of_device_suspend(struct device *dev, pm_message_t state)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * drv = to_of_platform_driver(dev->driver);

8
drivers/base/power/resume.c
View File

@ -26,11 +26,11 @@ int resume_device(struct device * dev)
down(&dev->sem);
if (dev->power.pm_parent
&& dev->power.pm_parent->power.power_state) {
&& dev->power.pm_parent->power.power_state.event) {
dev_err(dev, "PM: resume from %d, parent %s still %d\n",
dev->power.power_state,
dev->power.power_state.event,
dev->power.pm_parent->bus_id,
dev->power.pm_parent->power.power_state);
dev->power.pm_parent->power.power_state.event);
}
if (dev->bus && dev->bus->resume) {
dev_dbg(dev,"resuming\n");
@ -54,7 +54,7 @@ void dpm_resume(void)
list_add_tail(entry, &dpm_active);
up(&dpm_list_sem);
if (!dev->power.prev_state)
if (!dev->power.prev_state.event)
resume_device(dev);
down(&dpm_list_sem);
put_device(dev);

8
drivers/base/power/runtime.c
View File

@ -13,10 +13,10 @@
static void runtime_resume(struct device * dev)
{
dev_dbg(dev, "resuming\n");
if (!dev->power.power_state)
if (!dev->power.power_state.event)
return;
if (!resume_device(dev))
dev->power.power_state = 0;
dev->power.power_state = PMSG_ON;
}
@ -49,10 +49,10 @@ int dpm_runtime_suspend(struct device * dev, pm_message_t state)
int error = 0;
down(&dpm_sem);
if (dev->power.power_state == state)
if (dev->power.power_state.event == state.event)
goto Done;
if (dev->power.power_state)
if (dev->power.power_state.event)
runtime_resume(dev);
if (!(error = suspend_device(dev, state)))

12
drivers/base/power/suspend.c
View File

@ -40,22 +40,22 @@ int suspend_device(struct device * dev, pm_message_t state)
int error = 0;
down(&dev->sem);
if (dev->power.power_state) {
if (dev->power.power_state.event) {
dev_dbg(dev, "PM: suspend %d-->%d\n",
dev->power.power_state, state);
dev->power.power_state.event, state.event);
}
if (dev->power.pm_parent
&& dev->power.pm_parent->power.power_state) {
&& dev->power.pm_parent->power.power_state.event) {
dev_err(dev,
"PM: suspend %d->%d, parent %s already %d\n",
dev->power.power_state, state,
dev->power.power_state.event, state.event,
dev->power.pm_parent->bus_id,
dev->power.pm_parent->power.power_state);
dev->power.pm_parent->power.power_state.event);
}
dev->power.prev_state = dev->power.power_state;
if (dev->bus && dev->bus->suspend && !dev->power.power_state) {
if (dev->bus && dev->bus->suspend && !dev->power.power_state.event) {
dev_dbg(dev, "suspending\n");
error = dev->bus->suspend(dev, state);
}

8
drivers/base/power/sysfs.c
View File

@ -26,19 +26,19 @@
static ssize_t state_show(struct device * dev, struct device_attribute *attr, char * buf)
{
return sprintf(buf, "%u\n", dev->power.power_state);
return sprintf(buf, "%u\n", dev->power.power_state.event);
}
static ssize_t state_store(struct device * dev, struct device_attribute *attr, const char * buf, size_t n)
{
u32 state;
pm_message_t state;
char * rest;
int error = 0;
state = simple_strtoul(buf, &rest, 10);
state.event = simple_strtoul(buf, &rest, 10);
if (*rest)
return -EINVAL;
if (state)
if (state.event)
error = dpm_runtime_suspend(dev, state);
else
dpm_runtime_resume(dev);

4
drivers/ide/ide.c
View File

@ -1229,7 +1229,7 @@ static int generic_ide_suspend(struct device *dev, pm_message_t state)
rq.special = &args;
rq.pm = &rqpm;
rqpm.pm_step = ide_pm_state_start_suspend;
rqpm.pm_state = state;
rqpm.pm_state = state.event;
return ide_do_drive_cmd(drive, &rq, ide_wait);
}
@ -1248,7 +1248,7 @@ static int generic_ide_resume(struct device *dev)
rq.special = &args;
rq.pm = &rqpm;
rqpm.pm_step = ide_pm_state_start_resume;
rqpm.pm_state = 0;
rqpm.pm_state = PM_EVENT_ON;
return ide_do_drive_cmd(drive, &rq, ide_head_wait);
}

12
drivers/ide/pci/sc1200.c
View File

@ -350,9 +350,9 @@ static int sc1200_suspend (struct pci_dev *dev, pm_message_t state)
{
ide_hwif_t *hwif = NULL;
printk("SC1200: suspend(%u)\n", state);
printk("SC1200: suspend(%u)\n", state.event);
if (state == 0) {
if (state.event == PM_EVENT_ON) {
// we only save state when going from full power to less
//
@ -386,8 +386,8 @@ static int sc1200_suspend (struct pci_dev *dev, pm_message_t state)
/* You don't need to iterate over disks -- sysfs should have done that for you already */
pci_disable_device(dev);
pci_set_power_state(dev,state);
dev->current_state = state;
pci_set_power_state(dev, pci_choose_state(dev, state));
dev->current_state = state.event;
return 0;
}
@ -396,8 +396,8 @@ static int sc1200_resume (struct pci_dev *dev)
ide_hwif_t *hwif = NULL;
printk("SC1200: resume\n");
pci_set_power_state(dev,0); // bring chip back from sleep state
dev->current_state = 0;
pci_set_power_state(dev, PCI_D0); // bring chip back from sleep state
dev->current_state = PM_EVENT_ON;
pci_enable_device(dev);
//
// loop over all interfaces that are part of this pci device:

8
drivers/ide/ppc/pmac.c
View File

@ -1509,7 +1509,7 @@ pmac_ide_macio_suspend(struct macio_dev *mdev, pm_message_t state)
ide_hwif_t *hwif = (ide_hwif_t *)dev_get_drvdata(&mdev->ofdev.dev);
int rc = 0;
if (state != mdev->ofdev.dev.power.power_state && state >= 2) {
if (state.event != mdev->ofdev.dev.power.power_state.event && state.event >= PM_EVENT_SUSPEND) {
rc = pmac_ide_do_suspend(hwif);
if (rc == 0)
mdev->ofdev.dev.power.power_state = state;
@ -1524,7 +1524,7 @@ pmac_ide_macio_resume(struct macio_dev *mdev)
ide_hwif_t *hwif = (ide_hwif_t *)dev_get_drvdata(&mdev->ofdev.dev);
int rc = 0;
if (mdev->ofdev.dev.power.power_state != 0) {
if (mdev->ofdev.dev.power.power_state.event != PM_EVENT_ON) {
rc = pmac_ide_do_resume(hwif);
if (rc == 0)
mdev->ofdev.dev.power.power_state = PMSG_ON;
@ -1613,7 +1613,7 @@ pmac_ide_pci_suspend(struct pci_dev *pdev, pm_message_t state)
ide_hwif_t *hwif = (ide_hwif_t *)pci_get_drvdata(pdev);
int rc = 0;
if (state != pdev->dev.power.power_state && state >= 2) {
if (state.event != pdev->dev.power.power_state.event && state.event >= 2) {
rc = pmac_ide_do_suspend(hwif);
if (rc == 0)
pdev->dev.power.power_state = state;
@ -1628,7 +1628,7 @@ pmac_ide_pci_resume(struct pci_dev *pdev)
ide_hwif_t *hwif = (ide_hwif_t *)pci_get_drvdata(pdev);
int rc = 0;
if (pdev->dev.power.power_state != 0) {
if (pdev->dev.power.power_state.event != PM_EVENT_ON) {
rc = pmac_ide_do_resume(hwif);
if (rc == 0)
pdev->dev.power.power_state = PMSG_ON;

4
drivers/macintosh/mediabay.c
View File

@ -708,7 +708,7 @@ static int __pmac media_bay_suspend(struct macio_dev *mdev, pm_message_t state)
{
struct media_bay_info *bay = macio_get_drvdata(mdev);
if (state != mdev->ofdev.dev.power.power_state && state == PM_SUSPEND_MEM) {
if (state.event != mdev->ofdev.dev.power.power_state.event && state.event == PM_EVENT_SUSPEND) {
down(&bay->lock);
bay->sleeping = 1;
set_mb_power(bay, 0);
@ -723,7 +723,7 @@ static int __pmac media_bay_resume(struct macio_dev *mdev)
{
struct media_bay_info *bay = macio_get_drvdata(mdev);
if (mdev->ofdev.dev.power.power_state != 0) {
if (mdev->ofdev.dev.power.power_state.event != PM_EVENT_ON) {
mdev->ofdev.dev.power.power_state = PMSG_ON;
/* We re-enable the bay using it's previous content

2
drivers/macintosh/via-pmu.c
View File

@ -3065,7 +3065,7 @@ static int pmu_sys_suspended = 0;
static int pmu_sys_suspend(struct sys_device *sysdev, pm_message_t state)
{
if (state != PM_SUSPEND_DISK || pmu_sys_suspended)
if (state.event != PM_EVENT_SUSPEND || pmu_sys_suspended)
return 0;
/* Suspend PMU event interrupts */

2
drivers/media/dvb/cinergyT2/cinergyT2.c
View File

@ -888,7 +888,7 @@ static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
if (down_interruptible(&cinergyt2->sem))
return -ERESTARTSYS;
if (state > 0) { /* state 0 seems to mean DEVICE_PM_ON */
if (state.event > PM_EVENT_ON) {
struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
#ifdef ENABLE_RC
cancel_delayed_work(&cinergyt2->rc_query_work);

10
drivers/net/irda/vlsi_ir.c
View File

@ -1757,12 +1757,12 @@ static int vlsi_irda_suspend(struct pci_dev *pdev, pm_message_t state)
idev = ndev->priv;
down(&idev->sem);
if (pdev->current_state != 0) { /* already suspended */
if (state > pdev->current_state) { /* simply go deeper */
pci_set_power_state(pdev,state);
pdev->current_state = state;
if (state.event > pdev->current_state) { /* simply go deeper */
pci_set_power_state(pdev, pci_choose_state(pdev, state));
pdev->current_state = state.event;
}
else
IRDA_ERROR("%s - %s: invalid suspend request %u -> %u\n", __FUNCTION__, PCIDEV_NAME(pdev), pdev->current_state, state);
IRDA_ERROR("%s - %s: invalid suspend request %u -> %u\n", __FUNCTION__, PCIDEV_NAME(pdev), pdev->current_state, state.event);
up(&idev->sem);
return 0;
}
@ -1777,7 +1777,7 @@ static int vlsi_irda_suspend(struct pci_dev *pdev, pm_message_t state)
}
pci_set_power_state(pdev, pci_choose_state(pdev, state));
pdev->current_state = state;
pdev->current_state = state.event;
idev->resume_ok = 1;
up(&idev->sem);
return 0;

10
drivers/net/wireless/airo.c
View File

@ -2239,7 +2239,7 @@ static void airo_read_stats(struct airo_info *ai) {
u32 *vals = stats_rid.vals;
clear_bit(JOB_STATS, &ai->flags);
if (ai->power) {
if (ai->power.event) {
up(&ai->sem);
return;
}
@ -2969,7 +2969,7 @@ static int airo_thread(void *data) {
break;
}
if (ai->power || test_bit(FLAG_FLASHING, &ai->flags)) {
if (ai->power.event || test_bit(FLAG_FLASHING, &ai->flags)) {
up(&ai->sem);
continue;
}
@ -5521,7 +5521,7 @@ static int airo_pci_resume(struct pci_dev *pdev)
pci_restore_state(pdev);
pci_enable_wake(pdev, pci_choose_state(pdev, ai->power), 0);
if (ai->power > 1) {
if (ai->power.event > 1) {
reset_card(dev, 0);
mpi_init_descriptors(ai);
setup_card(ai, dev->dev_addr, 0);
@ -7123,7 +7123,7 @@ static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
int rc = 0;
struct airo_info *ai = (struct airo_info *)dev->priv;
if (ai->power)
if (ai->power.event)
return 0;
switch (cmd) {
@ -7202,7 +7202,7 @@ static void airo_read_wireless_stats(struct airo_info *local)
/* Get stats out of the card */
clear_bit(JOB_WSTATS, &local->flags);
if (local->power) {
if (local->power.event) {
up(&local->sem);
return;
}

14
drivers/pci/pci.c
View File

@ -333,13 +333,17 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state)
if (platform_pci_choose_state) {
ret = platform_pci_choose_state(dev, state);
if (ret >= 0)
state = ret;
state.event = ret;
}
switch (state) {
case 0: return PCI_D0;
case 3: return PCI_D3hot;
switch (state.event) {
case PM_EVENT_ON:
return PCI_D0;
case PM_EVENT_FREEZE:
case PM_EVENT_SUSPEND:
return PCI_D3hot;
default:
printk("They asked me for state %d\n", state);
printk("They asked me for state %d\n", state.event);
BUG();
}
return PCI_D0;

6
drivers/scsi/mesh.c
View File

@ -1766,7 +1766,7 @@ static int mesh_suspend(struct macio_dev *mdev, pm_message_t state)
struct mesh_state *ms = (struct mesh_state *)macio_get_drvdata(mdev);
unsigned long flags;
if (state == mdev->ofdev.dev.power.power_state || state < 2)
if (state.event == mdev->ofdev.dev.power.power_state.event || state.event < 2)
return 0;
scsi_block_requests(ms->host);
@ -1791,7 +1791,7 @@ static int mesh_resume(struct macio_dev *mdev)
struct mesh_state *ms = (struct mesh_state *)macio_get_drvdata(mdev);
unsigned long flags;
if (mdev->ofdev.dev.power.power_state == 0)
if (mdev->ofdev.dev.power.power_state.event == PM_EVENT_ON)
return 0;
set_mesh_power(ms, 1);
@ -1802,7 +1802,7 @@ static int mesh_resume(struct macio_dev *mdev)
enable_irq(ms->meshintr);
scsi_unblock_requests(ms->host);
mdev->ofdev.dev.power.power_state = 0;
mdev->ofdev.dev.power.power_state.event = PM_EVENT_ON;
return 0;
}

6
drivers/serial/pmac_zilog.c
View File

@ -1600,7 +1600,7 @@ static int pmz_suspend(struct macio_dev *mdev, pm_message_t pm_state)
return 0;
}
if (pm_state == mdev->ofdev.dev.power.power_state || pm_state < 2)
if (pm_state.event == mdev->ofdev.dev.power.power_state.event)
return 0;
pmz_debug("suspend, switching to state %d\n", pm_state);
@ -1660,7 +1660,7 @@ static int pmz_resume(struct macio_dev *mdev)
if (uap == NULL)
return 0;
if (mdev->ofdev.dev.power.power_state == 0)
if (mdev->ofdev.dev.power.power_state.event == PM_EVENT_ON)
return 0;
pmz_debug("resume, switching to state 0\n");
@ -1713,7 +1713,7 @@ static int pmz_resume(struct macio_dev *mdev)
pmz_debug("resume, switching complete\n");
mdev->ofdev.dev.power.power_state = 0;
mdev->ofdev.dev.power.power_state.event = PM_EVENT_ON;
return 0;
}

18
drivers/usb/core/hub.c
View File

@ -1570,7 +1570,7 @@ static int __usb_suspend_device (struct usb_device *udev, int port1,
struct usb_driver *driver;
intf = udev->actconfig->interface[i];
if (state <= intf->dev.power.power_state)
if (state.event <= intf->dev.power.power_state.event)
continue;
if (!intf->dev.driver)
continue;
@ -1578,11 +1578,11 @@ static int __usb_suspend_device (struct usb_device *udev, int port1,
if (driver->suspend) {
status = driver->suspend(intf, state);
if (intf->dev.power.power_state != state
if (intf->dev.power.power_state.event != state.event
|| status)
dev_err(&intf->dev,
"suspend %d fail, code %d\n",
state, status);
state.event, status);
}
/* only drivers with suspend() can ever resume();
@ -1595,7 +1595,7 @@ static int __usb_suspend_device (struct usb_device *udev, int port1,
* since we know every driver's probe/disconnect works
* even for drivers that can't suspend.
*/
if (!driver->suspend || state > PM_SUSPEND_MEM) {
if (!driver->suspend || state.event > PM_EVENT_FREEZE) {
#if 1
dev_warn(&intf->dev, "resume is unsafe!\n");
#else
@ -1616,7 +1616,7 @@ static int __usb_suspend_device (struct usb_device *udev, int port1,
* policies (when HNP doesn't apply) once we have mechanisms to
* turn power back on! (Likely not before 2.7...)
*/
if (state > PM_SUSPEND_MEM) {
if (state.event > PM_EVENT_FREEZE) {
dev_warn(&udev->dev, "no poweroff yet, suspending instead\n");
}
@ -1733,7 +1733,7 @@ static int finish_port_resume(struct usb_device *udev)
struct usb_driver *driver;
intf = udev->actconfig->interface[i];
if (intf->dev.power.power_state == PMSG_ON)
if (intf->dev.power.power_state.event == PM_EVENT_ON)
continue;
if (!intf->dev.driver) {
/* FIXME maybe force to alt 0 */
@ -1747,11 +1747,11 @@ static int finish_port_resume(struct usb_device *udev)
/* can we do better than just logging errors? */
status = driver->resume(intf);
if (intf->dev.power.power_state != PMSG_ON
if (intf->dev.power.power_state.event != PM_EVENT_ON
|| status)
dev_dbg(&intf->dev,
"resume fail, state %d code %d\n",
intf->dev.power.power_state, status);
intf->dev.power.power_state.event, status);
}
status = 0;
@ -1934,7 +1934,7 @@ static int hub_resume(struct usb_interface *intf)
unsigned port1;
int status;
if (intf->dev.power.power_state == PM_SUSPEND_ON)
if (intf->dev.power.power_state.event == PM_EVENT_ON)
return 0;
for (port1 = 1; port1 <= hdev->maxchild; port1++) {

2
drivers/usb/core/usb.c
View File

@ -1400,7 +1400,7 @@ static int usb_generic_suspend(struct device *dev, pm_message_t message)
driver = to_usb_driver(dev->driver);
/* there's only one USB suspend state */
if (intf->dev.power.power_state)
if (intf->dev.power.power_state.event)
return 0;
if (driver->suspend)

2
drivers/usb/host/ehci-dbg.c
View File

@ -641,7 +641,7 @@ show_registers (struct class_device *class_dev, char *buf)
spin_lock_irqsave (&ehci->lock, flags);
if (bus->controller->power.power_state) {
if (bus->controller->power.power_state.event) {
size = scnprintf (next, size,
"bus %s, device %s (driver " DRIVER_VERSION ")\n"
"%s\n"

2
drivers/usb/host/ohci-dbg.c
View File

@ -631,7 +631,7 @@ show_registers (struct class_device *class_dev, char *buf)
hcd->product_desc,
hcd_name);
if (bus->controller->power.power_state) {
if (bus->controller->power.power_state.event) {
size -= scnprintf (next, size,
"SUSPENDED (no register access)\n");
goto done;

6
drivers/usb/host/sl811-hcd.c
View File

@ -1781,9 +1781,9 @@ sl811h_suspend(struct device *dev, pm_message_t state, u32 phase)
if (phase != SUSPEND_POWER_DOWN)
return retval;
if (state <= PM_SUSPEND_MEM)
if (state.event == PM_EVENT_FREEZE)
retval = sl811h_hub_suspend(hcd);
else
else if (state.event == PM_EVENT_SUSPEND)
port_power(sl811, 0);
if (retval == 0)
dev->power.power_state = state;
@ -1802,7 +1802,7 @@ sl811h_resume(struct device *dev, u32 phase)
/* with no "check to see if VBUS is still powered" board hook,
* let's assume it'd only be powered to enable remote wakeup.
*/
if (dev->power.power_state > PM_SUSPEND_MEM
if (dev->power.power_state.event == PM_EVENT_SUSPEND
|| !hcd->can_wakeup) {
sl811->port1 = 0;
port_power(sl811, 1);

2
drivers/usb/misc/usbtest.c
View File

@ -1533,7 +1533,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
if (down_interruptible (&dev->sem))
return -ERESTARTSYS;
if (intf->dev.power.power_state != PMSG_ON) {
if (intf->dev.power.power_state.event != PM_EVENT_ON) {
up (&dev->sem);
return -EHOSTUNREACH;
}

14
drivers/video/aty/aty128fb.c
View File

@ -2323,17 +2323,16 @@ static int aty128_pci_suspend(struct pci_dev *pdev, pm_message_t state)
* can properly take care of D3 ? Also, with swsusp, we
* know we'll be rebooted, ...
*/
#ifdef CONFIG_PPC_PMAC
#ifndef CONFIG_PPC_PMAC
/* HACK ALERT ! Once I find a proper way to say to each driver
* individually what will happen with it's PCI slot, I'll change
* that. On laptops, the AGP slot is just unclocked, so D2 is
* expected, while on desktops, the card is powered off
*/
if (state >= 3)
state = 2;
return 0;
#endif /* CONFIG_PPC_PMAC */
if (state != 2 || state == pdev->dev.power.power_state)
if (state.event == pdev->dev.power.power_state.event)
return 0;
printk(KERN_DEBUG "aty128fb: suspending...\n");
@ -2367,7 +2366,7 @@ static int aty128_pci_suspend(struct pci_dev *pdev, pm_message_t state)
* used dummy fb ops, 2.5 need proper support for this at the
* fbdev level
*/
if (state == 2)
if (state.event != PM_EVENT_ON)
aty128_set_suspend(par, 1);
release_console_sem();
@ -2382,12 +2381,11 @@ static int aty128_do_resume(struct pci_dev *pdev)
struct fb_info *info = pci_get_drvdata(pdev);
struct aty128fb_par *par = info->par;
if (pdev->dev.power.power_state == 0)
if (pdev->dev.power.power_state.event == PM_EVENT_ON)
return 0;
/* Wakeup chip */
if (pdev->dev.power.power_state == 2)
aty128_set_suspend(par, 0);
aty128_set_suspend(par, 0);
par->asleep = 0;
/* Restore display & engine */

11
drivers/video/aty/atyfb_base.c
View File

@ -2022,17 +2022,16 @@ static int atyfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
struct fb_info *info = pci_get_drvdata(pdev);
struct atyfb_par *par = (struct atyfb_par *) info->par;
#ifdef CONFIG_PPC_PMAC
#ifndef CONFIG_PPC_PMAC
/* HACK ALERT ! Once I find a proper way to say to each driver
* individually what will happen with it's PCI slot, I'll change
* that. On laptops, the AGP slot is just unclocked, so D2 is
* expected, while on desktops, the card is powered off
*/
if (state >= 3)
state = 2;
return 0;
#endif /* CONFIG_PPC_PMAC */
if (state != 2 || state == pdev->dev.power.power_state)
if (state.event == pdev->dev.power.power_state.event)
return 0;
acquire_console_sem();
@ -2071,12 +2070,12 @@ static int atyfb_pci_resume(struct pci_dev *pdev)
struct fb_info *info = pci_get_drvdata(pdev);
struct atyfb_par *par = (struct atyfb_par *) info->par;
if (pdev->dev.power.power_state == 0)
if (pdev->dev.power.power_state.event == PM_EVENT_ON)
return 0;
acquire_console_sem();
if (pdev->dev.power.power_state == 2)
if (pdev->dev.power.power_state.event == 2)
aty_power_mgmt(0, par);
par->asleep = 0;

12
drivers/video/aty/radeon_pm.c
View File

@ -2526,18 +2526,18 @@ int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
struct radeonfb_info *rinfo = info->par;
int i;
if (state == pdev->dev.power.power_state)
if (state.event == pdev->dev.power.power_state.event)
return 0;
printk(KERN_DEBUG "radeonfb (%s): suspending to state: %d...\n",
pci_name(pdev), state);
pci_name(pdev), state.event);
/* For suspend-to-disk, we cheat here. We don't suspend anything and
* let fbcon continue drawing until we are all set. That shouldn't
* really cause any problem at this point, provided that the wakeup
* code knows that any state in memory may not match the HW
*/
if (state != PM_SUSPEND_MEM)
if (state.event == PM_EVENT_FREEZE)
goto done;
acquire_console_sem();
@ -2616,7 +2616,7 @@ int radeonfb_pci_resume(struct pci_dev *pdev)
struct radeonfb_info *rinfo = info->par;
int rc = 0;
if (pdev->dev.power.power_state == 0)
if (pdev->dev.power.power_state.event == PM_EVENT_ON)
return 0;
if (rinfo->no_schedule) {
@ -2626,7 +2626,7 @@ int radeonfb_pci_resume(struct pci_dev *pdev)
acquire_console_sem();
printk(KERN_DEBUG "radeonfb (%s): resuming from state: %d...\n",
pci_name(pdev), pdev->dev.power.power_state);
pci_name(pdev), pdev->dev.power.power_state.event);
if (pci_enable_device(pdev)) {
@ -2637,7 +2637,7 @@ int radeonfb_pci_resume(struct pci_dev *pdev)
}
pci_set_master(pdev);
if (pdev->dev.power.power_state == PM_SUSPEND_MEM) {
if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
/* Wakeup chip. Check from config space if we were powered off
* (todo: additionally, check CLK_PIN_CNTL too)
*/

4
drivers/video/chipsfb.c
View File

@ -462,9 +462,9 @@ static int chipsfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct fb_info *p = pci_get_drvdata(pdev);
if (state == pdev->dev.power.power_state)
if (state.event == pdev->dev.power.power_state.event)
return 0;
if (state != PM_SUSPEND_MEM)
if (state.event != PM_SUSPEND_MEM)
goto done;
acquire_console_sem();

6
drivers/video/i810/i810_main.c
View File

@ -1506,12 +1506,12 @@ static int i810fb_suspend(struct pci_dev *dev, pm_message_t state)
struct i810fb_par *par = (struct i810fb_par *) info->par;
int blank = 0, prev_state = par->cur_state;
if (state == prev_state)
if (state.event == prev_state)
return 0;
par->cur_state = state;
par->cur_state = state.event;
switch (state) {
switch (state.event) {
case 1:
blank = VESA_VSYNC_SUSPEND;
break;

14
include/linux/pm.h
View File

@ -186,7 +186,9 @@ extern int pm_suspend(suspend_state_t state);
struct device;
typedef u32 __bitwise pm_message_t;
typedef struct pm_message {
int event;
} pm_message_t;
/*
* There are 4 important states driver can be in:
@ -207,9 +209,13 @@ typedef u32 __bitwise pm_message_t;
* or something similar soon.
*/
#define PMSG_FREEZE ((__force pm_message_t) 3)
#define PMSG_SUSPEND ((__force pm_message_t) 3)
#define PMSG_ON ((__force pm_message_t) 0)
#define PM_EVENT_ON 0
#define PM_EVENT_FREEZE 1
#define PM_EVENT_SUSPEND 2
#define PMSG_FREEZE ((struct pm_message){ .event = PM_EVENT_FREEZE, })
#define PMSG_SUSPEND ((struct pm_message){ .event = PM_EVENT_SUSPEND, })
#define PMSG_ON ((struct pm_message){ .event = PM_EVENT_ON, })
struct dev_pm_info {
pm_message_t power_state;