1 files changed, 75 insertions, 0 deletions
diff --git a/kernel/include/linux/of_pci.h b/kernel/include/linux/of_pci.h
new file mode 100644
index 000000000..29fd3fe1c
--- /dev/null
+++ b/kernel/include/linux/of_pci.h
@@ -0,0 +1,75 @@
+#ifndef __OF_PCI_H
+#define __OF_PCI_H
+
+#include <linux/pci.h>
+#include <linux/msi.h>
+
+struct pci_dev;
+struct of_phandle_args;
+struct device_node;
+
+#ifdef CONFIG_OF
+int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq);
+struct device_node *of_pci_find_child_device(struct device_node *parent,
+					     unsigned int devfn);
+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);
+void of_pci_dma_configure(struct pci_dev *pci_dev);
+#else
+static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
+{
+	return 0;
+}
+
+static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
+					     unsigned int devfn)
+{
+	return NULL;
+}
+
+static inline int of_pci_get_devfn(struct device_node *np)
+{
+	return -EINVAL;
+}
+
+static inline int
+of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	return 0;
+}
+
+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)
+{
+	return -1;
+}
+
+static inline void of_pci_dma_configure(struct pci_dev *pci_dev) { }
+#endif
+
+#if defined(CONFIG_OF_ADDRESS)
+int of_pci_get_host_bridge_resources(struct device_node *dev,
+			unsigned char busno, unsigned char bus_max,
+			struct list_head *resources, resource_size_t *io_base);
+#endif
+
+#if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
+int of_pci_msi_chip_add(struct msi_controller *chip);
+void of_pci_msi_chip_remove(struct msi_controller *chip);
+struct msi_controller *of_pci_find_msi_chip_by_node(struct device_node *of_node);
+#else
+static inline int of_pci_msi_chip_add(struct msi_controller *chip) { return -EINVAL; }
+static inline void of_pci_msi_chip_remove(struct msi_controller *chip) { }
+static inline struct msi_controller *
+of_pci_find_msi_chip_by_node(struct device_node *of_node) { return NULL; }
+#endif
+
+#endif