[SCSI] sd: update sd to use the new pm callbacks

Update sd driver to use the callbacks defined in dev_pm_ops.

sd_freeze is NULL, the bus level callback has taken care of quiescing
the device so there should be nothing needs to be done here.
Consequently, sd_thaw is not needed here either.

suspend, poweroff and runtime suspend share the same routine sd_suspend,
which will sync flush and then stop the drive, this is the same as before.

resume, restore and runtime resume share the same routine sd_resume,
which will start the drive by putting it into active power state, this
is also the same as before.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 13 insertions, 6 deletions

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index b1195fd537b6..7992635d405f 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -105,7 +105,7 @@ static void sd_unlock_native_capacity(struct gendisk *disk);
 static int  sd_probe(struct device *);
 static int  sd_remove(struct device *);
 static void sd_shutdown(struct device *);
-static int sd_suspend(struct device *, pm_message_t state);
+static int sd_suspend(struct device *);
 static int sd_resume(struct device *);
 static void sd_rescan(struct device *);
 static int sd_done(struct scsi_cmnd *);
@@ -465,15 +465,23 @@ static struct class sd_disk_class = {
         .dev_attrs      = sd_disk_attrs,
 };
 
+static const struct dev_pm_ops sd_pm_ops = {
+        .suspend                = sd_suspend,
+        .resume                 = sd_resume,
+        .poweroff               = sd_suspend,
+        .restore                = sd_resume,
+        .runtime_suspend        = sd_suspend,
+        .runtime_resume         = sd_resume,
+};
+
 static struct scsi_driver sd_template = {
         .owner                  = THIS_MODULE,
         .gendrv = {
                 .name           = "sd",
                 .probe          = sd_probe,
                 .remove         = sd_remove,
-                .suspend        = sd_suspend,
-                .resume         = sd_resume,
                 .shutdown       = sd_shutdown,
+                .pm             = &sd_pm_ops,
         },
         .rescan                 = sd_rescan,
         .done                   = sd_done,
@@ -3054,7 +3062,7 @@ exit:
         scsi_disk_put(sdkp);
 }
 
-static int sd_suspend(struct device *dev, pm_message_t mesg)
+static int sd_suspend(struct device *dev)
 {
         struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev);
         int ret = 0;
@@ -3069,8 +3077,7 @@ static int sd_suspend(struct device *dev, pm_message_t mesg)
                         goto done;
         }
 
-        if (((mesg.event & PM_EVENT_SLEEP) || PMSG_IS_AUTO(mesg)) &&
-                        sdkp->device->manage_start_stop) {
+        if (sdkp->device->manage_start_stop) {
                 sd_printk(KERN_NOTICE, sdkp, "Stopping disk\n");
                 ret = sd_start_stop_device(sdkp, 0);
         }