UPSTREAM: of/pci: Add helper function to parse max-link-speed from dt

[firefly-linux-kernel-4.4.55.git] / include / linux / of_pci.h

diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 2c51ee78b1c0e31074ee17eb9a341021ee3162e0..7a6fd1c2e074c2ee4410364371bd64aafe5064ef 100644 (file)
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -16,6 +16,7 @@ int of_pci_get_devfn(struct device_node *np);
 int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
 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);
 void of_pci_check_probe_only(void);
 #else
 static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
@@ -52,6 +53,12 @@ of_get_pci_domain_nr(struct device_node *node)
        return -1;
 }
 
+static inline int
+of_pci_get_max_link_speed(struct device_node *node)
+{
+       return -EINVAL;
+}
+
 static inline void of_pci_check_probe_only(void) { }
 #endif