powerpc/eeh: Pass eeh_dev to eeh_ops->resume_notify()

Mechanical conversion of the eeh_ops interfaces to use eeh_dev to reference
a specific device rather than pci_dn. No functional changes.
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200725081231.39076-8-oohall@gmail.com

arch/powerpc/include/asm/eeh.h

@@ -230,7 +230,7 @@ struct eeh_ops {
 	int (*write_config)(struct pci_dn *pdn, int where, int size, u32 val);
 	int (*next_error)(struct eeh_pe **pe);
 	int (*restore_config)(struct eeh_dev *edev);
-	int (*notify_resume)(struct pci_dn *pdn);
+	int (*notify_resume)(struct eeh_dev *edev);
 };
 
 extern int eeh_subsystem_flags;

arch/powerpc/kernel/eeh_driver.c

@@ -425,8 +425,8 @@ static enum pci_ers_result eeh_report_resume(struct eeh_dev *edev,
 
 	pci_uevent_ers(edev->pdev, PCI_ERS_RESULT_RECOVERED);
 #ifdef CONFIG_PCI_IOV
-	if (eeh_ops->notify_resume && eeh_dev_to_pdn(edev))
-		eeh_ops->notify_resume(eeh_dev_to_pdn(edev));
+	if (eeh_ops->notify_resume)
+		eeh_ops->notify_resume(edev);
 #endif
 	return PCI_ERS_RESULT_NONE;
 }

arch/powerpc/kernel/eeh_sysfs.c

@@ -99,7 +99,7 @@ static ssize_t eeh_notify_resume_store(struct device *dev,
 	if (!edev || !edev->pe || !eeh_ops->notify_resume)
 		return -ENODEV;
 
-	if (eeh_ops->notify_resume(pci_get_pdn(pdev)))
+	if (eeh_ops->notify_resume(edev))
 		return -EIO;
 
 	return count;

arch/powerpc/platforms/pseries/eeh_pseries.c

@@ -899,10 +899,8 @@ static int pseries_call_allow_unfreeze(struct eeh_dev *edev)
 	return rc;
 }
 
-static int pseries_notify_resume(struct pci_dn *pdn)
+static int pseries_notify_resume(struct eeh_dev *edev)
 {
-	struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
-
 	if (!edev)
 		return -EEXIST;