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ARM: sa11x0: neponset: suspend/resume in _noirq state 

Suspend and resume in the _noirq state, so that we're saving the
state of the modem control signals as late as possible, and restoring
them as early as possible.  There's nothing to do in thaw/poweroff
methods as we've already saved the necessary state.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2012-01-24 23:29:47 +00:00
parent d2e539a5eb
commit 51f93390c2
1 changed files with 15 additions and 9 deletions
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24
arch/arm/mach-sa1100/neponset.c
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@ -8,6 +8,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/serial_core.h>
#include <linux/slab.h>
@ -303,10 +304,10 @@ static int __devexit neponset_remove(struct platform_device *dev)
return 0;
}
#ifdef CONFIG_PM
static int neponset_suspend(struct platform_device *dev, pm_message_t state)
#ifdef CONFIG_PM_SLEEP
static int neponset_suspend(struct device *dev)
{
struct neponset_drvdata *d = platform_get_drvdata(dev);
struct neponset_drvdata *d = dev_get_drvdata(dev);
d->ncr0 = NCR_0;
d->mdm_ctl_0 = MDM_CTL_0;
@ -314,9 +315,9 @@ static int neponset_suspend(struct platform_device *dev, pm_message_t state)
return 0;
}
static int neponset_resume(struct platform_device *dev)
static int neponset_resume(struct device *dev)
{
struct neponset_drvdata *d = platform_get_drvdata(dev);
struct neponset_drvdata *d = dev_get_drvdata(dev);
NCR_0 = d->ncr0;
MDM_CTL_0 = d->mdm_ctl_0;
@ -324,19 +325,24 @@ static int neponset_resume(struct platform_device *dev)
return 0;
}
static const struct dev_pm_ops neponset_pm_ops = {
.suspend_noirq = neponset_suspend,
.resume_noirq = neponset_resume,
.freeze_noirq = neponset_suspend,
.restore_noirq = neponset_resume,
};
#define PM_OPS &neponset_pm_ops
#else
#define neponset_suspend NULL
#define neponset_resume NULL
#define PM_OPS NULL
#endif
static struct platform_driver neponset_device_driver = {
.probe = neponset_probe,
.remove = __devexit_p(neponset_remove),
.suspend = neponset_suspend,
.resume = neponset_resume,
.driver = {
.name = "neponset",
.owner = THIS_MODULE,
.pm = PM_OPS,
},
};