Merge branch 'pci/of'

- Unexport of_pci_parse_bus_range() since it's only used in of.c (Bjorn
  Helgaas)

- Drop 'No bus range found' message so we don't complain when DTs don't
  specify the default 'bus-range = <0x00 0xff>' (Bjorn Helgaas)

- Simplify devm_of_pci_get_host_bridge_resources() interface by dropping
  parameters that are always the same default values (Bjorn Helgaas)

- Update comment reference to of_pci_get_host_bridge_resources(), which no
  longer exists (Bjorn Helgaas)

- Rename the drivers/pci/of_property.c struct of_pci_range to
  of_pci_range_entry to avoid confusion with the global of_pci_range in
  include/linux/of_address.h (Bjorn Helgaas)

* pci/of:
  PCI: of_property: Rename struct of_pci_range to of_pci_range_entry
  sparc/PCI: Update reference to devm_of_pci_get_host_bridge_resources()
  PCI: of: Simplify devm_of_pci_get_host_bridge_resources() interface
  PCI: of: Drop 'No bus range found' message
  PCI: Unexport of_pci_parse_bus_range()

Author: bjorn-helgaas

arch/sparc/kernel/pci_common.c

@@ -361,7 +361,7 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
 	int i, saw_mem, saw_io;
 	int num_pbm_ranges;
 
-	/* Corresponding generic code in of_pci_get_host_bridge_resources() */
+	/* Corresponds to generic devm_of_pci_get_host_bridge_resources() */
 
 	saw_mem = saw_io = 0;
 	pbm_ranges = of_get_property(pbm->op->dev.of_node, "ranges", &i);

drivers/pci/of.c

@@ -190,7 +190,8 @@ EXPORT_SYMBOL_GPL(of_pci_get_devfn);
  *
  * Returns 0 on success or a negative error-code on failure.
  */
-int of_pci_parse_bus_range(struct device_node *node, struct resource *res)
+static int of_pci_parse_bus_range(struct device_node *node,
+				  struct resource *res)
 {
 	u32 bus_range[2];
 	int error;
@@ -207,7 +208,6 @@ int of_pci_parse_bus_range(struct device_node *node, struct resource *res)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(of_pci_parse_bus_range);
 
 /**
  * of_get_pci_domain_nr - Find the host bridge domain number
@@ -302,8 +302,6 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_only);
  * devm_of_pci_get_host_bridge_resources() - Resource-managed parsing of PCI
  *                                           host bridge resources from DT
  * @dev: host bridge device
- * @busno: bus number associated with the bridge root bus
- * @bus_max: maximum number of buses for this bridge
  * @resources: list where the range of resources will be added after DT parsing
  * @ib_resources: list where the range of inbound resources (with addresses
  *                from 'dma-ranges') will be added after DT parsing
@@ -319,7 +317,6 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_only);
  * value if it failed.
  */
 static int devm_of_pci_get_host_bridge_resources(struct device *dev,
-			unsigned char busno, unsigned char bus_max,
 			struct list_head *resources,
 			struct list_head *ib_resources,
 			resource_size_t *io_base)
@@ -343,14 +340,15 @@ static int devm_of_pci_get_host_bridge_resources(struct device *dev,
 
 	err = of_pci_parse_bus_range(dev_node, bus_range);
 	if (err) {
-		bus_range->start = busno;
-		bus_range->end = bus_max;
+		bus_range->start = 0;
+		bus_range->end = 0xff;
 		bus_range->flags = IORESOURCE_BUS;
-		dev_info(dev, "  No bus range found for %pOF, using %pR\n",
-			 dev_node, bus_range);
 	} else {
-		if (bus_range->end > bus_range->start + bus_max)
-			bus_range->end = bus_range->start + bus_max;
+		if (bus_range->end > 0xff) {
+			dev_warn(dev, "  Invalid end bus number in %pR, defaulting to 0xff\n",
+				 bus_range);
+			bus_range->end = 0xff;
+		}
 	}
 	pci_add_resource(resources, bus_range);
 
@@ -597,7 +595,7 @@ static int pci_parse_request_of_pci_ranges(struct device *dev,
 	INIT_LIST_HEAD(&bridge->windows);
 	INIT_LIST_HEAD(&bridge->dma_ranges);
 
-	err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, &bridge->windows,
+	err = devm_of_pci_get_host_bridge_resources(dev, &bridge->windows,
 						    &bridge->dma_ranges, &iobase);
 	if (err)
 		return err;

drivers/pci/of_property.c

@@ -26,7 +26,7 @@ struct of_pci_addr_pair {
  * side and the child address is the corresponding address on the secondary
  * side.
  */
-struct of_pci_range {
+struct of_pci_range_entry {
 	u32		child_addr[OF_PCI_ADDRESS_CELLS];
 	u32		parent_addr[OF_PCI_ADDRESS_CELLS];
 	u32		size[OF_PCI_SIZE_CELLS];
@@ -101,7 +101,7 @@ static int of_pci_prop_bus_range(struct pci_dev *pdev,
 static int of_pci_prop_ranges(struct pci_dev *pdev, struct of_changeset *ocs,
 			      struct device_node *np)
 {
-	struct of_pci_range *rp;
+	struct of_pci_range_entry *rp;
 	struct resource *res;
 	int i, j, ret;
 	u32 flags, num;

drivers/pci/pci.h

@@ -808,7 +808,6 @@ static inline u64 pci_rebar_size_to_bytes(int size)
 struct device_node;
 
 #ifdef CONFIG_OF
-int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
 int of_get_pci_domain_nr(struct device_node *node);
 int of_pci_get_max_link_speed(struct device_node *node);
 u32 of_pci_get_slot_power_limit(struct device_node *node,
@@ -824,12 +823,6 @@ int devm_of_pci_bridge_init(struct device *dev, struct pci_host_bridge *bridge);
 bool of_pci_supply_present(struct device_node *np);
 
 #else
-static inline int
-of_pci_parse_bus_range(struct device_node *node, struct resource *res)
-{
-	return -EINVAL;
-}
-
 static inline int
 of_get_pci_domain_nr(struct device_node *node)
 {