powerpc/powernv: Drop PHB operation configure_bridge()

The patch drops PHB EEH operation configure_bridge() and merges
its logic to eeh_ops::configure_bridge().
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/platforms/powernv/eeh-ioda.c

@@ -530,20 +530,6 @@ static int ioda_eeh_reset(struct eeh_pe *pe, int option)
 	return ret;
 }
 
-/**
- * ioda_eeh_configure_bridge - Configure the PCI bridges for the indicated PE
- * @pe: EEH PE
- *
- * For particular PE, it might have included PCI bridges. In order
- * to make the PE work properly, those PCI bridges should be configured
- * correctly. However, we need do nothing on P7IOC since the reset
- * function will do everything that should be covered by the function.
- */
-static int ioda_eeh_configure_bridge(struct eeh_pe *pe)
-{
-	return 0;
-}
-
 static void ioda_eeh_hub_diag_common(struct OpalIoP7IOCErrorData *data)
 {
 	/* GEM */
@@ -886,6 +872,5 @@ struct pnv_eeh_ops ioda_eeh_ops = {
 	.set_option		= ioda_eeh_set_option,
 	.get_state		= ioda_eeh_get_state,
 	.reset			= ioda_eeh_reset,
-	.configure_bridge	= ioda_eeh_configure_bridge,
 	.next_error		= ioda_eeh_next_error
 };

arch/powerpc/platforms/powernv/eeh-powernv.c

@@ -549,14 +549,7 @@ static int pnv_eeh_get_log(struct eeh_pe *pe, int severity,
  */
 static int pnv_eeh_configure_bridge(struct eeh_pe *pe)
 {
-	struct pci_controller *hose = pe->phb;
-	struct pnv_phb *phb = hose->private_data;
-	int ret = 0;
-
-	if (phb->eeh_ops && phb->eeh_ops->configure_bridge)
-		ret = phb->eeh_ops->configure_bridge(pe);
-
-	return ret;
+	return 0;
 }
 
 /**

arch/powerpc/platforms/powernv/pci.h

@@ -81,7 +81,6 @@ struct pnv_eeh_ops {
 	int (*set_option)(struct eeh_pe *pe, int option);
 	int (*get_state)(struct eeh_pe *pe);
 	int (*reset)(struct eeh_pe *pe, int option);
-	int (*configure_bridge)(struct eeh_pe *pe);
 	int (*next_error)(struct eeh_pe **pe);
 };
 #endif /* CONFIG_EEH */