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PM: do not use saved_state from struct dev_pm_info on ARM

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The saved_state member of 'struct dev_pm_info' that's going to be removed
is used in arch/arm/common/locomo.c, arch/arm/common/sa1111.c and
arch/arm/mach-sa1100/neponset.c.  Change the code in there to use local
variables for saving the state of devices during suspend.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Greg KH <greg@kroah.com>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Rafael J. Wysocki 2007-07-09 11:39:19 -07:00 committed by Greg Kroah-Hartman
parent 43a49f8baa
commit 93160c6397
3 changed files with 20 additions and 19 deletions
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9
arch/arm/common/locomo.c
View file

@ -60,6 +60,9 @@ struct locomo {
unsigned int irq;
spinlock_t lock;
void __iomem *base;
#ifdef CONFIG_PM
void *saved_state;
#endif
};
struct locomo_dev_info {
@ -565,7 +568,7 @@ static int locomo_suspend(struct platform_device *dev, pm_message_t state)
if (!save)
return -ENOMEM;
dev->dev.power.saved_state = (void *) save;
lchip->saved_state = save;
spin_lock_irqsave(&lchip->lock, flags);
@ -606,7 +609,7 @@ static int locomo_resume(struct platform_device *dev)
unsigned long r;
unsigned long flags;
save = (struct locomo_save_data *) dev->dev.power.saved_state;
save = lchip->saved_state;
if (!save)
return 0;
@ -628,6 +631,8 @@ static int locomo_resume(struct platform_device *dev)
locomo_writel(0x1, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KCMD);
spin_unlock_irqrestore(&lchip->lock, flags);
lchip->saved_state = NULL;
kfree(save);
return 0;

13
arch/arm/common/sa1111.c
View file

@ -51,6 +51,9 @@ struct sa1111 {
int irq;
spinlock_t lock;
void __iomem *base;
#ifdef CONFIG_PM
void *saved_state;
#endif
};
/*
@ -822,7 +825,7 @@ static int sa1111_suspend(struct platform_device *dev, pm_message_t state)
save = kmalloc(sizeof(struct sa1111_save_data), GFP_KERNEL);
if (!save)
return -ENOMEM;
dev->dev.power.saved_state = save;
sachip->saved_state = save;
spin_lock_irqsave(&sachip->lock, flags);
@ -878,7 +881,7 @@ static int sa1111_resume(struct platform_device *dev)
unsigned long flags, id;
void __iomem *base;
save = (struct sa1111_save_data *)dev->dev.power.saved_state;
save = sachip->saved_state;
if (!save)
return 0;
@ -923,7 +926,7 @@ static int sa1111_resume(struct platform_device *dev)
spin_unlock_irqrestore(&sachip->lock, flags);
dev->dev.power.saved_state = NULL;
sachip->saved_state = NULL;
kfree(save);
return 0;
@ -958,8 +961,8 @@ static int sa1111_remove(struct platform_device *pdev)
platform_set_drvdata(pdev, NULL);
#ifdef CONFIG_PM
kfree(pdev->dev.power.saved_state);
pdev->dev.power.saved_state = NULL;
kfree(sachip->saved_state);
sachip->saved_state = NULL;
#endif
}

15
arch/arm/mach-sa1100/neponset.c
View file

@ -185,28 +185,21 @@ static int __devinit neponset_probe(struct platform_device *dev)
/*
* LDM power management.
*/
static unsigned int neponset_saved_state;
static int neponset_suspend(struct platform_device *dev, pm_message_t state)
{
/*
* Save state.
*/
if (!dev->dev.power.saved_state)
dev->dev.power.saved_state = kmalloc(sizeof(unsigned int), GFP_KERNEL);
if (!dev->dev.power.saved_state)
return -ENOMEM;
*(unsigned int *)dev->dev.power.saved_state = NCR_0;
neponset_saved_state = NCR_0;
return 0;
}
static int neponset_resume(struct platform_device *dev)
{
if (dev->dev.power.saved_state) {
NCR_0 = *(unsigned int *)dev->dev.power.saved_state;
kfree(dev->dev.power.saved_state);
dev->dev.power.saved_state = NULL;
}
NCR_0 = neponset_saved_state;
return 0;
}