PCI: OF: Allow of_pci_get_max_link_speed() to be used by PCI Endpoint drivers

of_pci_get_max_link_speed() is built only if CONFIG_PCI is enabled.
Make of_pci_get_max_link_speed() to be also used by PCI Endpoint
controllers with just CONFIG_PCI_ENDPOINT enabled.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>

1 files changed, 23 insertions, 21 deletions

diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index 3d32da15c215..8095933f8452 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -15,6 +15,7 @@
 #include <linux/of_pci.h>
 #include "pci.h"
 
+#ifdef CONFIG_PCI
 void pci_set_of_node(struct pci_dev *dev)
 {
 	if (!dev->bus->dev.of_node)
@@ -197,27 +198,6 @@ int of_get_pci_domain_nr(struct device_node *node)
 EXPORT_SYMBOL_GPL(of_get_pci_domain_nr);
 
 /**
- * This function will try to find the limitation of link speed by finding
- * a property called "max-link-speed" of the given device node.
- *
- * @node: device tree node with the max link speed information
- *
- * Returns the associated max link speed from DT, or a negative value if the
- * required property is not found or is invalid.
- */
-int of_pci_get_max_link_speed(struct device_node *node)
-{
-	u32 max_link_speed;
-
-	if (of_property_read_u32(node, "max-link-speed", &max_link_speed) ||
-	    max_link_speed > 4)
-		return -EINVAL;
-
-	return max_link_speed;
-}
-EXPORT_SYMBOL_GPL(of_pci_get_max_link_speed);
-
-/**
  * of_pci_check_probe_only - Setup probe only mode if linux,pci-probe-only
  *                           is present and valid
  */
@@ -537,3 +517,25 @@ int pci_parse_request_of_pci_ranges(struct device *dev,
 	return err;
 }
 
+#endif /* CONFIG_PCI */
+
+/**
+ * This function will try to find the limitation of link speed by finding
+ * a property called "max-link-speed" of the given device node.
+ *
+ * @node: device tree node with the max link speed information
+ *
+ * Returns the associated max link speed from DT, or a negative value if the
+ * required property is not found or is invalid.
+ */
+int of_pci_get_max_link_speed(struct device_node *node)
+{
+	u32 max_link_speed;
+
+	if (of_property_read_u32(node, "max-link-speed", &max_link_speed) ||
+	    max_link_speed > 4)
+		return -EINVAL;
+
+	return max_link_speed;
+}
+EXPORT_SYMBOL_GPL(of_pci_get_max_link_speed);