libata: reimplement suspend/resume support using sdev->manage_start_stop

Reimplement suspend/resume support using sdev->manage_start_stop.

* Device suspend/resume is now SCSI layer's responsibility and the
  code is simplified a lot.

* DPM is dropped.  This also simplifies code a lot.  Suspend/resume
  status is port-wide now.

* ata_scsi_device_suspend/resume() and ata_dev_ready() removed.

* Resume now has to wait for disk to spin up before proceeding.  I
  couldn't find easy way out as libata is in EH waiting for the
  disk to be ready and sd is waiting for EH to complete to issue
  START_STOP.

* sdev->manage_start_stop is set to 1 in ata_scsi_slave_config().
  This fixes spindown on shutdown and suspend-to-disk.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

45 files changed, 14 insertions, 575 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index d9617892fc23..1ab8a8fdeaac 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -250,10 +250,6 @@ static struct scsi_host_template ahci_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .suspend                = ata_scsi_device_suspend,
-        .resume                 = ata_scsi_device_resume,
-#endif
 };
 
 static const struct ata_port_operations ahci_ops = {
diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c
index 92a491ddd030..0f19e3223358 100644
--- a/drivers/ata/ata_generic.c
+++ b/drivers/ata/ata_generic.c
@@ -54,7 +54,7 @@ static int generic_set_mode(struct ata_port *ap, struct ata_device **unused)
 
         for (i = 0; i < ATA_MAX_DEVICES; i++) {
                 struct ata_device *dev = &ap->device[i];
-                if (ata_dev_ready(dev)) {
+                if (ata_dev_enabled(dev)) {
                         /* We don't really care */
                         dev->pio_mode = XFER_PIO_0;
                         dev->dma_mode = XFER_MW_DMA_0;
@@ -90,10 +90,6 @@ static struct scsi_host_template generic_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations generic_port_ops = {
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 4a795fdb6a02..4f5a0dc7fb9c 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -275,10 +275,6 @@ static struct scsi_host_template piix_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static const struct ata_port_operations piix_pata_ops = {
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 4595d1f8cf60..2e2a2fa8e9e9 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2860,7 +2860,7 @@ int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
                 dev = &ap->device[i];
 
                 /* don't update suspended devices' xfer mode */
-                if (!ata_dev_ready(dev))
+                if (!ata_dev_enabled(dev))
                         continue;
 
                 rc = ata_dev_set_mode(dev);
@@ -5845,37 +5845,11 @@ static int ata_host_request_pm(struct ata_host *host, pm_message_t mesg,
  */
 int ata_host_suspend(struct ata_host *host, pm_message_t mesg)
 {
-        int i, j, rc;
+        int rc;
 
         rc = ata_host_request_pm(host, mesg, 0, ATA_EHI_QUIET, 1);
-        if (rc)
-                goto fail;
-
-        /* EH is quiescent now.  Fail if we have any ready device.
-         * This happens if hotplug occurs between completion of device
-         * suspension and here.
-         */
-        for (i = 0; i < host->n_ports; i++) {
-                struct ata_port *ap = host->ports[i];
-
-                for (j = 0; j < ATA_MAX_DEVICES; j++) {
-                        struct ata_device *dev = &ap->device[j];
-
-                        if (ata_dev_ready(dev)) {
-                                ata_port_printk(ap, KERN_WARNING,
-                                                "suspend failed, device %d "
-                                                "still active\n", dev->devno);
-                                rc = -EBUSY;
-                                goto fail;
-                        }
-                }
-        }
-
-        host->dev->power.power_state = mesg;
-        return 0;
-
- fail:
-        ata_host_resume(host);
+        if (rc == 0)
+                host->dev->power.power_state = mesg;
         return rc;
 }
 
@@ -6889,11 +6863,6 @@ EXPORT_SYMBOL_GPL(ata_pci_default_filter);
 EXPORT_SYMBOL_GPL(ata_pci_clear_simplex);
 #endif /* CONFIG_PCI */
 
-#ifdef CONFIG_PM
-EXPORT_SYMBOL_GPL(ata_scsi_device_suspend);
-EXPORT_SYMBOL_GPL(ata_scsi_device_resume);
-#endif /* CONFIG_PM */
-
 EXPORT_SYMBOL_GPL(ata_eng_timeout);
 EXPORT_SYMBOL_GPL(ata_port_schedule_eh);
 EXPORT_SYMBOL_GPL(ata_port_abort);
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 8256655ce7d9..412d6049afa3 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -77,29 +77,12 @@ static void ata_eh_finish(struct ata_port *ap);
 #ifdef CONFIG_PM
 static void ata_eh_handle_port_suspend(struct ata_port *ap);
 static void ata_eh_handle_port_resume(struct ata_port *ap);
-static int ata_eh_suspend(struct ata_port *ap,
-                          struct ata_device **r_failed_dev);
-static void ata_eh_prep_resume(struct ata_port *ap);
-static int ata_eh_resume(struct ata_port *ap, struct ata_device **r_failed_dev);
 #else /* CONFIG_PM */
 static void ata_eh_handle_port_suspend(struct ata_port *ap)
 { }
 
 static void ata_eh_handle_port_resume(struct ata_port *ap)
 { }
-
-static int ata_eh_suspend(struct ata_port *ap, struct ata_device **r_failed_dev)
-{
-        return 0;
-}
-
-static void ata_eh_prep_resume(struct ata_port *ap)
-{ }
-
-static int ata_eh_resume(struct ata_port *ap, struct ata_device **r_failed_dev)
-{
-        return 0;
-}
 #endif /* CONFIG_PM */
 
 static void ata_ering_record(struct ata_ering *ering, int is_io,
@@ -1791,7 +1774,7 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap,
                 if (ehc->i.flags & ATA_EHI_DID_RESET)
                         readid_flags |= ATA_READID_POSTRESET;
 
-                if (action & ATA_EH_REVALIDATE && ata_dev_ready(dev)) {
+                if ((action & ATA_EH_REVALIDATE) && ata_dev_enabled(dev)) {
                         if (ata_port_offline(ap)) {
                                 rc = -EIO;
                                 goto err;
@@ -1872,166 +1855,6 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap,
         return rc;
 }
 
-#ifdef CONFIG_PM
-/**
- *      ata_eh_suspend - handle suspend EH action
- *      @ap: target host port
- *      @r_failed_dev: result parameter to indicate failing device
- *
- *      Handle suspend EH action.  Disk devices are spinned down and
- *      other types of devices are just marked suspended.  Once
- *      suspended, no EH action to the device is allowed until it is
- *      resumed.
- *
- *      LOCKING:
- *      Kernel thread context (may sleep).
- *
- *      RETURNS:
- *      0 on success, -errno otherwise
- */
-static int ata_eh_suspend(struct ata_port *ap, struct ata_device **r_failed_dev)
-{
-        struct ata_device *dev;
-        int i, rc = 0;
-
-        DPRINTK("ENTER\n");
-
-        for (i = 0; i < ATA_MAX_DEVICES; i++) {
-                unsigned long flags;
-                unsigned int action, err_mask;
-
-                dev = &ap->device[i];
-                action = ata_eh_dev_action(dev);
-
-                if (!ata_dev_enabled(dev) || !(action & ATA_EH_SUSPEND))
-                        continue;
-
-                WARN_ON(dev->flags & ATA_DFLAG_SUSPENDED);
-
-                ata_eh_about_to_do(ap, dev, ATA_EH_SUSPEND);
-
-                if (dev->class == ATA_DEV_ATA && !(action & ATA_EH_PM_FREEZE)) {
-                        /* flush cache */
-                        rc = ata_flush_cache(dev);
-                        if (rc)
-                                break;
-
-                        /* spin down */
-                        err_mask = ata_do_simple_cmd(dev, ATA_CMD_STANDBYNOW1);
-                        if (err_mask) {
-                                ata_dev_printk(dev, KERN_ERR, "failed to "
-                                               "spin down (err_mask=0x%x)\n",
-                                               err_mask);
-                                rc = -EIO;
-                                break;
-                        }
-                }
-
-                spin_lock_irqsave(ap->lock, flags);
-                dev->flags |= ATA_DFLAG_SUSPENDED;
-                spin_unlock_irqrestore(ap->lock, flags);
-
-                ata_eh_done(ap, dev, ATA_EH_SUSPEND);
-        }
-
-        if (rc)
-                *r_failed_dev = dev;
-
-        DPRINTK("EXIT\n");
-        return rc;
-}
-
-/**
- *      ata_eh_prep_resume - prep for resume EH action
- *      @ap: target host port
- *
- *      Clear SUSPENDED in preparation for scheduled resume actions.
- *      This allows other parts of EH to access the devices being
- *      resumed.
- *
- *      LOCKING:
- *      Kernel thread context (may sleep).
- */
-static void ata_eh_prep_resume(struct ata_port *ap)
-{
-        struct ata_device *dev;
-        unsigned long flags;
-        int i;
-
-        DPRINTK("ENTER\n");
-
-        for (i = 0; i < ATA_MAX_DEVICES; i++) {
-                unsigned int action;
-
-                dev = &ap->device[i];
-                action = ata_eh_dev_action(dev);
-
-                if (!ata_dev_enabled(dev) || !(action & ATA_EH_RESUME))
-                        continue;
-
-                spin_lock_irqsave(ap->lock, flags);
-                dev->flags &= ~ATA_DFLAG_SUSPENDED;
-                spin_unlock_irqrestore(ap->lock, flags);
-        }
-
-        DPRINTK("EXIT\n");
-}
-
-/**
- *      ata_eh_resume - handle resume EH action
- *      @ap: target host port
- *      @r_failed_dev: result parameter to indicate failing device
- *
- *      Handle resume EH action.  Target devices are already reset and
- *      revalidated.  Spinning up is the only operation left.
- *
- *      LOCKING:
- *      Kernel thread context (may sleep).
- *
- *      RETURNS:
- *      0 on success, -errno otherwise
- */
-static int ata_eh_resume(struct ata_port *ap, struct ata_device **r_failed_dev)
-{
-        struct ata_device *dev;
-        int i, rc = 0;
-
-        DPRINTK("ENTER\n");
-
-        for (i = 0; i < ATA_MAX_DEVICES; i++) {
-                unsigned int action, err_mask;
-
-                dev = &ap->device[i];
-                action = ata_eh_dev_action(dev);
-
-                if (!ata_dev_enabled(dev) || !(action & ATA_EH_RESUME))
-                        continue;
-
-                ata_eh_about_to_do(ap, dev, ATA_EH_RESUME);
-
-                if (dev->class == ATA_DEV_ATA && !(action & ATA_EH_PM_FREEZE)) {
-                        err_mask = ata_do_simple_cmd(dev,
-                                                     ATA_CMD_IDLEIMMEDIATE);
-                        if (err_mask) {
-                                ata_dev_printk(dev, KERN_ERR, "failed to "
-                                               "spin up (err_mask=0x%x)\n",
-                                               err_mask);
-                                rc = -EIO;
-                                break;
-                        }
-                }
-
-                ata_eh_done(ap, dev, ATA_EH_RESUME);
-        }
-
-        if (rc)
-                *r_failed_dev = dev;
-
-        DPRINTK("EXIT\n");
-        return 0;
-}
-#endif /* CONFIG_PM */
-
 static int ata_port_nr_enabled(struct ata_port *ap)
 {
         int i, cnt = 0;
@@ -2057,17 +1880,6 @@ static int ata_eh_skip_recovery(struct ata_port *ap)
         struct ata_eh_context *ehc = &ap->eh_context;
         int i;
 
-        /* skip if all possible devices are suspended */
-        for (i = 0; i < ata_port_max_devices(ap); i++) {
-                struct ata_device *dev = &ap->device[i];
-
-                if (!(dev->flags & ATA_DFLAG_SUSPENDED))
-                        break;
-        }
-
-        if (i == ata_port_max_devices(ap))
-                return 1;
-
         /* thaw frozen port, resume link and recover failed devices */
         if ((ap->pflags & ATA_PFLAG_FROZEN) ||
             (ehc->i.flags & ATA_EHI_RESUME_LINK) || ata_port_nr_enabled(ap))
@@ -2147,9 +1959,6 @@ static int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
         if (ap->pflags & ATA_PFLAG_UNLOADING)
                 goto out;
 
-        /* prep for resume */
-        ata_eh_prep_resume(ap);
-
         /* skip EH if possible. */
         if (ata_eh_skip_recovery(ap))
                 ehc->i.action = 0;
@@ -2177,11 +1986,6 @@ static int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
         if (rc)
                 goto dev_fail;
 
-        /* resume devices */
-        rc = ata_eh_resume(ap, &dev);
-        if (rc)
-                goto dev_fail;
-
         /* configure transfer mode if necessary */
         if (ehc->i.flags & ATA_EHI_SETMODE) {
                 rc = ata_set_mode(ap, &dev);
@@ -2190,11 +1994,6 @@ static int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
                 ehc->i.flags &= ~ATA_EHI_SETMODE;
         }
 
-        /* suspend devices */
-        rc = ata_eh_suspend(ap, &dev);
-        if (rc)
-                goto dev_fail;
-
         goto out;
 
  dev_fail:
@@ -2390,22 +2189,13 @@ static void ata_eh_handle_port_suspend(struct ata_port *ap)
  *
  *      Resume @ap.
  *
- *      This function also waits upto one second until all devices
- *      hanging off this port requests resume EH action.  This is to
- *      prevent invoking EH and thus reset multiple times on resume.
- *
- *      On DPM resume, where some of devices might not be resumed
- *      together, this may delay port resume upto one second, but such
- *      DPM resumes are rare and 1 sec delay isn't too bad.
- *
  *      LOCKING:
  *      Kernel thread context (may sleep).
  */
 static void ata_eh_handle_port_resume(struct ata_port *ap)
 {
-        unsigned long timeout;
         unsigned long flags;
-        int i, rc = 0;
+        int rc = 0;
 
         /* are we resuming? */
         spin_lock_irqsave(ap->lock, flags);
@@ -2416,31 +2206,12 @@ static void ata_eh_handle_port_resume(struct ata_port *ap)
         }
         spin_unlock_irqrestore(ap->lock, flags);
 
-        /* spurious? */
-        if (!(ap->pflags & ATA_PFLAG_SUSPENDED))
-                goto done;
+        WARN_ON(!(ap->pflags & ATA_PFLAG_SUSPENDED));
 
         if (ap->ops->port_resume)
                 rc = ap->ops->port_resume(ap);
 
-        /* give devices time to request EH */
-        timeout = jiffies + HZ; /* 1s max */
-        while (1) {
-                for (i = 0; i < ATA_MAX_DEVICES; i++) {
-                        struct ata_device *dev = &ap->device[i];
-                        unsigned int action = ata_eh_dev_action(dev);
-
-                        if ((dev->flags & ATA_DFLAG_SUSPENDED) &&
-                            !(action & ATA_EH_RESUME))
-                                break;
-                }
-
-                if (i == ATA_MAX_DEVICES || time_after(jiffies, timeout))
-                        break;
-                msleep(10);
-        }
-
- done:
+        /* report result */
         spin_lock_irqsave(ap->lock, flags);
         ap->pflags &= ~(ATA_PFLAG_PM_PENDING | ATA_PFLAG_SUSPENDED);
         if (ap->pm_result) {
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 9afba2ba489e..8f800196d596 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -510,133 +510,6 @@ static void ata_dump_status(unsigned id, struct ata_taskfile *tf)
         }
 }
 
-#ifdef CONFIG_PM
-/**
- *      ata_scsi_device_suspend - suspend ATA device associated with sdev
- *      @sdev: the SCSI device to suspend
- *      @mesg: target power management message
- *
- *      Request suspend EH action on the ATA device associated with
- *      @sdev and wait for the operation to complete.
- *
- *      LOCKING:
- *      Kernel thread context (may sleep).
- *
- *      RETURNS:
- *      0 on success, -errno otherwise.
- */
-int ata_scsi_device_suspend(struct scsi_device *sdev, pm_message_t mesg)
-{
-        struct ata_port *ap = ata_shost_to_port(sdev->host);
-        struct ata_device *dev = ata_scsi_find_dev(ap, sdev);
-        unsigned long flags;
-        unsigned int action;
-        int rc = 0;
-
-        if (!dev)
-                goto out;
-
-        spin_lock_irqsave(ap->lock, flags);
-
-        /* wait for the previous resume to complete */
-        while (dev->flags & ATA_DFLAG_SUSPENDED) {
-                spin_unlock_irqrestore(ap->lock, flags);
-                ata_port_wait_eh(ap);
-                spin_lock_irqsave(ap->lock, flags);
-        }
-
-        /* if @sdev is already detached, nothing to do */
-        if (sdev->sdev_state == SDEV_OFFLINE ||
-            sdev->sdev_state == SDEV_CANCEL || sdev->sdev_state == SDEV_DEL)
-                goto out_unlock;
-
-        /* request suspend */
-        action = ATA_EH_SUSPEND;
-        if (mesg.event != PM_EVENT_SUSPEND)
-                action |= ATA_EH_PM_FREEZE;
-        ap->eh_info.dev_action[dev->devno] |= action;
-        ap->eh_info.flags |= ATA_EHI_QUIET;
-        ata_port_schedule_eh(ap);
-
-        spin_unlock_irqrestore(ap->lock, flags);
-
-        /* wait for EH to do the job */
-        ata_port_wait_eh(ap);
-
-        spin_lock_irqsave(ap->lock, flags);
-
-        /* If @sdev is still attached but the associated ATA device
-         * isn't suspended, the operation failed.
-         */
-        if (sdev->sdev_state != SDEV_OFFLINE &&
-            sdev->sdev_state != SDEV_CANCEL && sdev->sdev_state != SDEV_DEL &&
-            !(dev->flags & ATA_DFLAG_SUSPENDED))
-                rc = -EIO;
-
- out_unlock:
-        spin_unlock_irqrestore(ap->lock, flags);
- out:
-        if (rc == 0)
-                sdev->sdev_gendev.power.power_state = mesg;
-        return rc;
-}
-
-/**
- *      ata_scsi_device_resume - resume ATA device associated with sdev
- *      @sdev: the SCSI device to resume
- *
- *      Request resume EH action on the ATA device associated with
- *      @sdev and return immediately.  This enables parallel
- *      wakeup/spinup of devices.
- *
- *      LOCKING:
- *      Kernel thread context (may sleep).
- *
- *      RETURNS:
- *      0.
- */
-int ata_scsi_device_resume(struct scsi_device *sdev)
-{
-        struct ata_port *ap = ata_shost_to_port(sdev->host);
-        struct ata_device *dev = ata_scsi_find_dev(ap, sdev);
-        struct ata_eh_info *ehi = &ap->eh_info;
-        unsigned long flags;
-        unsigned int action;
-
-        if (!dev)
-                goto out;
-
-        spin_lock_irqsave(ap->lock, flags);
-
-        /* if @sdev is already detached, nothing to do */
-        if (sdev->sdev_state == SDEV_OFFLINE ||
-            sdev->sdev_state == SDEV_CANCEL || sdev->sdev_state == SDEV_DEL)
-                goto out_unlock;
-
-        /* request resume */
-        action = ATA_EH_RESUME;
-        if (sdev->sdev_gendev.power.power_state.event == PM_EVENT_SUSPEND)
-                __ata_ehi_hotplugged(ehi);
-        else
-                action |= ATA_EH_PM_FREEZE | ATA_EH_SOFTRESET;
-        ehi->dev_action[dev->devno] |= action;
-
-        /* We don't want autopsy and verbose EH messages.  Disable
-         * those if we're the only device on this link.
-         */
-        if (ata_port_max_devices(ap) == 1)
-                ehi->flags |= ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET;
-
-        ata_port_schedule_eh(ap);
-
- out_unlock:
-        spin_unlock_irqrestore(ap->lock, flags);
- out:
-        sdev->sdev_gendev.power.power_state = PMSG_ON;
-        return 0;
-}
-#endif /* CONFIG_PM */
-
 /**
  *      ata_to_sense_error - convert ATA error to SCSI error
  *      @id: ATA device number
@@ -929,6 +802,8 @@ int ata_scsi_slave_config(struct scsi_device *sdev)
 
         blk_queue_max_phys_segments(sdev->request_queue, LIBATA_MAX_PRD);
 
+        sdev->manage_start_stop = 1;
+
         if (dev)
                 ata_scsi_dev_config(sdev, dev);
 
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index d40edebb510a..48c7531ae690 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -291,10 +291,6 @@ static struct scsi_host_template ali_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 /*
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index 67c7e87dec04..86a26186739c 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -324,10 +324,6 @@ static struct scsi_host_template amd_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations amd33_port_ops = {
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index 21515381b5b3..3c2264dbdd67 100644
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -229,10 +229,6 @@ static struct scsi_host_template atiixp_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations atiixp_port_ops = {
diff --git a/drivers/ata/pata_cmd640.c b/drivers/ata/pata_cmd640.c
index 2105985a8013..987dec935b5c 100644
--- a/drivers/ata/pata_cmd640.c
+++ b/drivers/ata/pata_cmd640.c
@@ -181,10 +181,6 @@ static struct scsi_host_template cmd640_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations cmd640_port_ops = {
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index 3989cc577fcd..3e02c6a3ba9c 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -266,10 +266,6 @@ static struct scsi_host_template cmd64x_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations cmd64x_port_ops = {
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index 79bef0d1fad3..83bcc5b32597 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -155,10 +155,6 @@ static struct scsi_host_template cs5520_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations cs5520_port_ops = {
diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c
index 29642d5ee189..637d8b302e3e 100644
--- a/drivers/ata/pata_cs5530.c
+++ b/drivers/ata/pata_cs5530.c
@@ -176,10 +176,6 @@ static struct scsi_host_template cs5530_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations cs5530_port_ops = {
diff --git a/drivers/ata/pata_cs5535.c b/drivers/ata/pata_cs5535.c
index 22006ae71941..683885a47b6d 100644
--- a/drivers/ata/pata_cs5535.c
+++ b/drivers/ata/pata_cs5535.c
@@ -173,10 +173,6 @@ static struct scsi_host_template cs5535_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations cs5535_port_ops = {
diff --git a/drivers/ata/pata_cypress.c b/drivers/ata/pata_cypress.c
index 6ec049c3b1dc..30e5c543bcb0 100644
--- a/drivers/ata/pata_cypress.c
+++ b/drivers/ata/pata_cypress.c
@@ -125,10 +125,6 @@ static struct scsi_host_template cy82c693_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations cy82c693_port_ops = {
diff --git a/drivers/ata/pata_efar.c b/drivers/ata/pata_efar.c
index d0f52e034906..23e929f0cd3f 100644
--- a/drivers/ata/pata_efar.c
+++ b/drivers/ata/pata_efar.c
@@ -247,10 +247,6 @@ static struct scsi_host_template efar_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static const struct ata_port_operations efar_ops = {
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index e64e05e5c7fe..cb965f41d093 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -331,10 +331,6 @@ static struct scsi_host_template hpt36x_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 /*
diff --git a/drivers/ata/pata_hpt3x3.c b/drivers/ata/pata_hpt3x3.c
index ac28ec8c50aa..84c636b9beac 100644
--- a/drivers/ata/pata_hpt3x3.c
+++ b/drivers/ata/pata_hpt3x3.c
@@ -100,10 +100,6 @@ static struct scsi_host_template hpt3x3_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations hpt3x3_port_ops = {
diff --git a/drivers/ata/pata_it8213.c b/drivers/ata/pata_it8213.c
index 17bf9f3ed013..bf3aaa205edc 100644
--- a/drivers/ata/pata_it8213.c
+++ b/drivers/ata/pata_it8213.c
@@ -257,10 +257,6 @@ static struct scsi_host_template it8213_sht = {
         .dma_boundary           = ATA_DMA_BOUNDARY,
         .slave_configure        = ata_scsi_slave_config,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static const struct ata_port_operations it8213_ops = {
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index f1f8cec8c224..8e565a5f2c8d 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -620,10 +620,6 @@ static struct scsi_host_template it821x_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations it821x_smart_port_ops = {
diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c
index 420c343e5711..b994351fbcd0 100644
--- a/drivers/ata/pata_ixp4xx_cf.c
+++ b/drivers/ata/pata_ixp4xx_cf.c
@@ -31,7 +31,7 @@ static int ixp4xx_set_mode(struct ata_port *ap, struct ata_device **error)
 
         for (i = 0; i < ATA_MAX_DEVICES; i++) {
                 struct ata_device *dev = &ap->device[i];
-                if (ata_dev_ready(dev)) {
+                if (ata_dev_enabled(dev)) {
                         ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
                         dev->pio_mode = XFER_PIO_0;
                         dev->xfer_mode = XFER_PIO_0;
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
index 1daf78ac6efb..1aa7bc2fda54 100644
--- a/drivers/ata/pata_jmicron.c
+++ b/drivers/ata/pata_jmicron.c
@@ -138,10 +138,6 @@ static struct scsi_host_template jmicron_sht = {
         .slave_destroy          = ata_scsi_slave_destroy,
         /* Use standard CHS mapping rules */
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .suspend                = ata_scsi_device_suspend,
-        .resume                 = ata_scsi_device_resume,
-#endif
 };
 
 static const struct ata_port_operations jmicron_ops = {
diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c
index 837b7fe77dc7..2745e23cac43 100644
--- a/drivers/ata/pata_marvell.c
+++ b/drivers/ata/pata_marvell.c
@@ -107,10 +107,6 @@ static struct scsi_host_template marvell_sht = {
         .slave_destroy          = ata_scsi_slave_destroy,
         /* Use standard CHS mapping rules */
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static const struct ata_port_operations marvell_ops = {
diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index 9587a89f9683..368fac7d168b 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -280,10 +280,6 @@ static struct scsi_host_template mpc52xx_ata_sht = {
         .dma_boundary           = ATA_DMA_BOUNDARY,
         .slave_configure        = ata_scsi_slave_config,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .suspend                = ata_scsi_device_suspend,
-        .resume                 = ata_scsi_device_resume,
-#endif
 };
 
 static struct ata_port_operations mpc52xx_ata_port_ops = {
diff --git a/drivers/ata/pata_mpiix.c b/drivers/ata/pata_mpiix.c
index 3bfbd495f643..4ea42838297e 100644
--- a/drivers/ata/pata_mpiix.c
+++ b/drivers/ata/pata_mpiix.c
@@ -165,10 +165,6 @@ static struct scsi_host_template mpiix_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations mpiix_port_ops = {
diff --git a/drivers/ata/pata_netcell.c b/drivers/ata/pata_netcell.c
index dbba5b77d79c..f15eb34fb1fc 100644
--- a/drivers/ata/pata_netcell.c
+++ b/drivers/ata/pata_netcell.c
@@ -37,10 +37,6 @@ static struct scsi_host_template netcell_sht = {
         .slave_destroy          = ata_scsi_slave_destroy,
         /* Use standard CHS mapping rules */
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static const struct ata_port_operations netcell_ops = {
diff --git a/drivers/ata/pata_ns87410.c b/drivers/ata/pata_ns87410.c
index ebc58a907d26..d5eb42bdae9a 100644
--- a/drivers/ata/pata_ns87410.c
+++ b/drivers/ata/pata_ns87410.c
@@ -158,10 +158,6 @@ static struct scsi_host_template ns87410_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations ns87410_port_ops = {
diff --git a/drivers/ata/pata_oldpiix.c b/drivers/ata/pata_oldpiix.c
index 4d75d32e5826..d59002e7528d 100644
--- a/drivers/ata/pata_oldpiix.c
+++ b/drivers/ata/pata_oldpiix.c
@@ -234,10 +234,6 @@ static struct scsi_host_template oldpiix_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static const struct ata_port_operations oldpiix_pata_ops = {
diff --git a/drivers/ata/pata_opti.c b/drivers/ata/pata_opti.c
index 0af8a2c77cc9..944b7084b459 100644
--- a/drivers/ata/pata_opti.c
+++ b/drivers/ata/pata_opti.c
@@ -179,10 +179,6 @@ static struct scsi_host_template opti_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations opti_port_ops = {
diff --git a/drivers/ata/pata_optidma.c b/drivers/ata/pata_optidma.c
index 2843e480f216..875ac4a49dd7 100644
--- a/drivers/ata/pata_optidma.c
+++ b/drivers/ata/pata_optidma.c
@@ -363,10 +363,6 @@ static struct scsi_host_template optidma_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations optidma_port_ops = {
diff --git a/drivers/ata/pata_pdc202xx_old.c b/drivers/ata/pata_pdc202xx_old.c
index ee636beb05e1..3e204c329d51 100644
--- a/drivers/ata/pata_pdc202xx_old.c
+++ b/drivers/ata/pata_pdc202xx_old.c
@@ -244,10 +244,6 @@ static struct scsi_host_template pdc202xx_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations pdc2024x_port_ops = {
diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c
index 1c54673e008d..bc01b17a00c2 100644
--- a/drivers/ata/pata_radisys.c
+++ b/drivers/ata/pata_radisys.c
@@ -200,10 +200,6 @@ static struct scsi_host_template radisys_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static const struct ata_port_operations radisys_pata_ops = {
diff --git a/drivers/ata/pata_rz1000.c b/drivers/ata/pata_rz1000.c
index 85c45290eeee..97785b4f1efa 100644
--- a/drivers/ata/pata_rz1000.c
+++ b/drivers/ata/pata_rz1000.c
@@ -40,7 +40,7 @@ static int rz1000_set_mode(struct ata_port *ap, struct ata_device **unused)
 
         for (i = 0; i < ATA_MAX_DEVICES; i++) {
                 struct ata_device *dev = &ap->device[i];
-                if (ata_dev_ready(dev)) {
+                if (ata_dev_enabled(dev)) {
                         /* We don't really care */
                         dev->pio_mode = XFER_PIO_0;
                         dev->xfer_mode = XFER_PIO_0;
@@ -69,10 +69,6 @@ static struct scsi_host_template rz1000_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations rz1000_port_ops = {
diff --git a/drivers/ata/pata_sc1200.c b/drivers/ata/pata_sc1200.c
index 66e8ff467c8d..2af9f8c8bd1f 100644
--- a/drivers/ata/pata_sc1200.c
+++ b/drivers/ata/pata_sc1200.c
@@ -194,10 +194,6 @@ static struct scsi_host_template sc1200_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations sc1200_port_ops = {
diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c
index 203f463ac39f..cca3aa225efe 100644
--- a/drivers/ata/pata_scc.c
+++ b/drivers/ata/pata_scc.c
@@ -984,10 +984,6 @@ static struct scsi_host_template scc_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static const struct ata_port_operations scc_pata_ops = {
diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
index b6e020383dd9..8bbe4266f760 100644
--- a/drivers/ata/pata_serverworks.c
+++ b/drivers/ata/pata_serverworks.c
@@ -315,10 +315,6 @@ static struct scsi_host_template serverworks_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations serverworks_osb4_port_ops = {
diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c
index a5886f061c0b..8c0b25f145ae 100644
--- a/drivers/ata/pata_sil680.c
+++ b/drivers/ata/pata_sil680.c
@@ -232,10 +232,6 @@ static struct scsi_host_template sil680_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .suspend                = ata_scsi_device_suspend,
-        .resume                 = ata_scsi_device_resume,
-#endif
 };
 
 static struct ata_port_operations sil680_port_ops = {
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index f5838cc11728..9b3774a4775a 100644
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -524,10 +524,6 @@ static struct scsi_host_template sis_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static const struct ata_port_operations sis_133_ops = {
diff --git a/drivers/ata/pata_triflex.c b/drivers/ata/pata_triflex.c
index 349887bf5b93..045f9d2832df 100644
--- a/drivers/ata/pata_triflex.c
+++ b/drivers/ata/pata_triflex.c
@@ -194,10 +194,6 @@ static struct scsi_host_template triflex_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations triflex_port_ops = {
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 362beb2f489c..3740644e7f43 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -301,10 +301,6 @@ static struct scsi_host_template via_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .resume                 = ata_scsi_device_resume,
-        .suspend                = ata_scsi_device_suspend,
-#endif
 };
 
 static struct ata_port_operations via_port_ops = {
diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c
index b3b62e985f19..bda5e7747c21 100644
--- a/drivers/ata/sata_inic162x.c
+++ b/drivers/ata/sata_inic162x.c
@@ -135,10 +135,6 @@ static struct scsi_host_template inic_sht = {
         .slave_configure        = inic_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .suspend                = ata_scsi_device_suspend,
-        .resume                 = ata_scsi_device_resume,
-#endif
 };
 
 static const int scr_map[] = {
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index a097595d4dc7..6962f8e492f5 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -325,10 +325,6 @@ static struct scsi_host_template nv_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .suspend                = ata_scsi_device_suspend,
-        .resume                 = ata_scsi_device_resume,
-#endif
 };
 
 static struct scsi_host_template nv_adma_sht = {
@@ -347,10 +343,6 @@ static struct scsi_host_template nv_adma_sht = {
         .slave_configure        = nv_adma_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .suspend                = ata_scsi_device_suspend,
-        .resume                 = ata_scsi_device_resume,
-#endif
 };
 
 static const struct ata_port_operations nv_generic_ops = {
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index 0a1e417f309c..e8483aadd11b 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -182,10 +182,6 @@ static struct scsi_host_template sil_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .suspend                = ata_scsi_device_suspend,
-        .resume                 = ata_scsi_device_resume,
-#endif
 };
 
 static const struct ata_port_operations sil_ops = {
diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
index b97ee9f31aec..a69d78cd8e9b 100644
--- a/drivers/ata/sata_sil24.c
+++ b/drivers/ata/sata_sil24.c
@@ -380,10 +380,6 @@ static struct scsi_host_template sil24_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
-#ifdef CONFIG_PM
-        .suspend                = ata_scsi_device_suspend,
-        .resume                 = ata_scsi_device_resume,
-#endif
 };
 
 static const struct ata_port_operations sil24_ops = {
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 7906d750aa77..8a7cc13c8516 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -140,7 +140,6 @@ enum {
 
         ATA_DFLAG_PIO           = (1 << 8), /* device limited to PIO mode */
         ATA_DFLAG_NCQ_OFF       = (1 << 9), /* device limited to non-NCQ mode */
-        ATA_DFLAG_SUSPENDED     = (1 << 10), /* device suspended */
         ATA_DFLAG_INIT_MASK     = (1 << 16) - 1,
 
         ATA_DFLAG_DETACH        = (1 << 16),
@@ -268,13 +267,9 @@ enum {
         ATA_EH_REVALIDATE       = (1 << 0),
         ATA_EH_SOFTRESET        = (1 << 1),
         ATA_EH_HARDRESET        = (1 << 2),
-        ATA_EH_SUSPEND          = (1 << 3),
-        ATA_EH_RESUME           = (1 << 4),
-        ATA_EH_PM_FREEZE        = (1 << 5),
 
         ATA_EH_RESET_MASK       = ATA_EH_SOFTRESET | ATA_EH_HARDRESET,
-        ATA_EH_PERDEV_MASK      = ATA_EH_REVALIDATE | ATA_EH_SUSPEND |
-                                  ATA_EH_RESUME | ATA_EH_PM_FREEZE,
+        ATA_EH_PERDEV_MASK      = ATA_EH_REVALIDATE,
 
         /* ata_eh_info->flags */
         ATA_EHI_HOTPLUGGED      = (1 << 0),  /* could have been hotplugged */
@@ -736,8 +731,6 @@ extern int sata_scr_write_flush(struct ata_port *ap, int reg, u32 val);
 extern int ata_port_online(struct ata_port *ap);
 extern int ata_port_offline(struct ata_port *ap);
 #ifdef CONFIG_PM
-extern int ata_scsi_device_resume(struct scsi_device *);
-extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t mesg);
 extern int ata_host_suspend(struct ata_host *host, pm_message_t mesg);
 extern void ata_host_resume(struct ata_host *host);
 #endif
@@ -1008,11 +1001,6 @@ static inline unsigned int ata_dev_absent(const struct ata_device *dev)
         return ata_class_absent(dev->class);
 }
 
-static inline unsigned int ata_dev_ready(const struct ata_device *dev)
-{
-        return ata_dev_enabled(dev) && !(dev->flags & ATA_DFLAG_SUSPENDED);
-}
-
 /*
  * port helpers
  */