[PATCH 05/11] PCI: versatile: Use pci_parse_request_of_pci_ranges()

[Rob Herring <robh@kernel.org>]

Convert ARM Versatile host bridge to use the common
pci_parse_request_of_pci_ranges().

Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rob Herring <robh@kernel.org>
---
 drivers/pci/controller/pci-versatile.c | 62 +++++---------------------
 1 file changed, 11 insertions(+), 51 deletions(-)

diff --git a/drivers/pci/controller/pci-versatile.c b/drivers/pci/controller/pci-versatile.c
index f59ad2728c0b..237b1abb26f2 100644
--- a/drivers/pci/controller/pci-versatile.c
+++ b/drivers/pci/controller/pci-versatile.c
@@ -62,60 +62,12 @@ static struct pci_ops pci_versatile_ops = {
 	.write	= pci_generic_config_write,
 };
 
-static int versatile_pci_parse_request_of_pci_ranges(struct device *dev,
-						     struct list_head *res)
-{
-	int err, mem = 1, res_valid = 0;
-	resource_size_t iobase;
-	struct resource_entry *win, *tmp;
-
-	err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, res, &iobase);
-	if (err)
-		return err;
-
-	err = devm_request_pci_bus_resources(dev, res);
-	if (err)
-		goto out_release_res;
-
-	resource_list_for_each_entry_safe(win, tmp, res) {
-		struct resource *res = win->res;
-
-		switch (resource_type(res)) {
-		case IORESOURCE_IO:
-			err = devm_pci_remap_iospace(dev, res, iobase);
-			if (err) {
-				dev_warn(dev, "error %d: failed to map resource %pR\n",
-					 err, res);
-				resource_list_destroy_entry(win);
-			}
-			break;
-		case IORESOURCE_MEM:
-			res_valid |= !(res->flags & IORESOURCE_PREFETCH);
-
-			writel(res->start >> 28, PCI_IMAP(mem));
-			writel(PHYS_OFFSET >> 28, PCI_SMAP(mem));
-			mem++;
-
-			break;
-		}
-	}
-
-	if (res_valid)
-		return 0;
-
-	dev_err(dev, "non-prefetchable memory resource required\n");
-	err = -EINVAL;
-
-out_release_res:
-	pci_free_resource_list(res);
-	return err;
-}
-
 static int versatile_pci_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct resource *res;
-	int ret, i, myslot = -1;
+	struct resource_entry *entry;
+	int ret, i, myslot = -1, mem = 0;
 	u32 val;
 	void __iomem *local_pci_cfg_base;
 	struct pci_bus *bus, *child;
@@ -141,10 +93,18 @@ static int versatile_pci_probe(struct platform_device *pdev)
 	if (IS_ERR(versatile_cfg_base[1]))
 		return PTR_ERR(versatile_cfg_base[1]);
 
-	ret = versatile_pci_parse_request_of_pci_ranges(dev, &pci_res);
+	ret = pci_parse_request_of_pci_ranges(dev, &pci_res, NULL);
 	if (ret)
 		return ret;
 
+	resource_list_for_each_entry(entry, &pci_res) {
+		if (resource_type(entry->res) == IORESOURCE_MEM) {
+			writel(entry->res->start >> 28, PCI_IMAP(mem));
+			writel(PHYS_OFFSET >> 28, PCI_SMAP(mem));
+			mem++;
+		}
+	}
+
 	/*
 	 * We need to discover the PCI core first to configure itself
 	 * before the main PCI probing is performed
-- 
2.20.1