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ata: update ata port's runtime status during system resume

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The ata port is brought back to full power state during system resume.
So its runtime PM status will have to be updated to reflect
the actual post-system sleep status.

This also fixes below warning during system suspend/resume.

WARNING: at /work/linux/drivers/ata/libata-eh.c:4034
ata_scsi_port_error_handler+0x89/0x557()

4034         WARN_ON(!(ap->pflags & ATA_PFLAG_SUSPENDED));

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Lin Ming 2011-12-22 14:50:48 +08:00 committed by Jeff Garzik
parent 28fd00d42c
commit e90b1e5a6e
1 changed files with 16 additions and 2 deletions
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18
drivers/ata/libata-core.c
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@ -5298,7 +5298,7 @@ static int ata_port_suspend(struct device *dev)
return ata_port_suspend_common(dev);
}
static int ata_port_resume(struct device *dev)
static int ata_port_resume_common(struct device *dev)
{
struct ata_port *ap = to_ata_port(dev);
int rc;
@ -5308,6 +5308,20 @@ static int ata_port_resume(struct device *dev)
return rc;
}
static int ata_port_resume(struct device *dev)
{
int rc;
rc = ata_port_resume_common(dev);
if (!rc) {
pm_runtime_disable(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
}
return rc;
}
static int ata_port_runtime_idle(struct device *dev)
{
return pm_runtime_suspend(dev);
@ -5318,7 +5332,7 @@ static const struct dev_pm_ops ata_port_pm_ops = {
.resume = ata_port_resume,
.runtime_suspend = ata_port_suspend_common,
.runtime_resume = ata_port_resume,
.runtime_resume = ata_port_resume_common,
.runtime_idle = ata_port_runtime_idle,
};