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Subject[PATCH v2 1/3] ahci: port legacy pm interface to struct dev_pm_ops
Date
Also add hibernate callbacks.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
---
drivers/ata/ahci.c | 48 +++++++++++++++++++++++++++++++++++++++++-------
1 files changed, 41 insertions(+), 7 deletions(-)
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index cf26222..183c8b2 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -84,8 +84,10 @@ static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline);
#ifdef CONFIG_PM
-static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
-static int ahci_pci_device_resume(struct pci_dev *pdev);
+static int ahci_pci_device_suspend(struct device *dev);
+static int ahci_pci_device_resume(struct device *dev);
+static int ahci_pci_device_freeze(struct device *dev);
+static int ahci_pci_device_poweroff(struct device *dev);
#endif

static struct scsi_host_template ahci_sht = {
@@ -400,6 +402,14 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ } /* terminate list */
};

+static const struct dev_pm_ops ahci_pci_pm_ops = {
+ .suspend = ahci_pci_device_suspend,
+ .resume = ahci_pci_device_resume,
+ .freeze = ahci_pci_device_freeze,
+ .thaw = ahci_pci_device_resume,
+ .poweroff = ahci_pci_device_poweroff,
+ .restore = ahci_pci_device_resume,
+};

static struct pci_driver ahci_pci_driver = {
.name = DRV_NAME,
@@ -407,8 +417,9 @@ static struct pci_driver ahci_pci_driver = {
.probe = ahci_init_one,
.remove = ata_pci_remove_one,
#ifdef CONFIG_PM
- .suspend = ahci_pci_device_suspend,
- .resume = ahci_pci_device_resume,
+ .driver = {
+ .pm = &ahci_pci_pm_ops
+ },
#endif
};

@@ -567,7 +578,8 @@ static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
}

#ifdef CONFIG_PM
-static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
+static int ahci_pci_device_suspend_common(struct pci_dev *pdev,
+ pm_message_t mesg)
{
struct ata_host *host = dev_get_drvdata(&pdev->dev);
struct ahci_host_priv *hpriv = host->private_data;
@@ -595,9 +607,31 @@ static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
return ata_pci_device_suspend(pdev, mesg);
}

-static int ahci_pci_device_resume(struct pci_dev *pdev)
+static int ahci_pci_device_suspend(struct device *dev)
{
- struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return ahci_pci_device_suspend_common(pdev, PMSG_SUSPEND);
+}
+
+static int ahci_pci_device_freeze(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return ahci_pci_device_suspend_common(pdev, PMSG_FREEZE);
+}
+
+static int ahci_pci_device_poweroff(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return ahci_pci_device_suspend_common(pdev, PMSG_HIBERNATE);
+}
+
+static int ahci_pci_device_resume(struct device *dev)
+{
+ struct ata_host *host = dev_get_drvdata(dev);
+ struct pci_dev *pdev = to_pci_dev(dev);
int rc;

rc = ata_pci_device_do_resume(pdev);
--
1.7.2.5


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