1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __OF_PCI_H 3 #define __OF_PCI_H 4 5 #include <linux/types.h> 6 #include <linux/errno.h> 7 8 struct pci_dev; 9 struct device_node; 10 11 #if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_PCI) 12 struct device_node *of_pci_find_child_device(struct device_node *parent, 13 unsigned int devfn); 14 int of_pci_get_devfn(struct device_node *np); 15 void of_pci_check_probe_only(void); 16 #else 17 static inline struct device_node *of_pci_find_child_device(struct device_node *parent, 18 unsigned int devfn) 19 { 20 return NULL; 21 } 22 23 static inline int of_pci_get_devfn(struct device_node *np) 24 { 25 return -EINVAL; 26 } 27 28 static inline void of_pci_check_probe_only(void) { } 29 #endif 30 31 #if IS_ENABLED(CONFIG_OF_IRQ) 32 int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin); 33 #else 34 static inline int 35 of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin) 36 { 37 return 0; 38 } 39 #endif 40 41 #endif 42