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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001/* SPDX-License-Identifier: GPL-2.0 */
Sebastian Andrzej Siewior04bea682011-01-24 09:58:55 +05302#ifndef __OF_PCI_H
3#define __OF_PCI_H
4
5#include <linux/pci.h>
Thomas Petazzoni0d5a6db2013-08-09 22:27:09 +02006#include <linux/msi.h>
Sebastian Andrzej Siewior04bea682011-01-24 09:58:55 +05307
8struct pci_dev;
Grant Likely530210c2013-09-15 16:39:11 +01009struct of_phandle_args;
Benjamin Herrenschmidt98d9f30c82011-04-11 11:37:07 +100010struct device_node;
Arnd Bergmann64c5c752014-06-04 04:40:19 -050011
Rob Herring4670d612018-01-17 17:36:39 -060012#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_PCI)
Benjamin Herrenschmidt98d9f30c82011-04-11 11:37:07 +100013struct device_node *of_pci_find_child_device(struct device_node *parent,
14 unsigned int devfn);
Thierry Reding45ab9702013-05-16 17:55:18 +020015int of_pci_get_devfn(struct device_node *np);
Marc Zyngierf81c11a2015-09-04 17:50:08 +010016void of_pci_check_probe_only(void);
Arnd Bergmann64c5c752014-06-04 04:40:19 -050017#else
Arnd Bergmann64c5c752014-06-04 04:40:19 -050018static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
19 unsigned int devfn)
20{
21 return NULL;
22}
23
24static inline int of_pci_get_devfn(struct device_node *np)
25{
26 return -EINVAL;
27}
28
Marc Zyngierf81c11a2015-09-04 17:50:08 +010029static inline void of_pci_check_probe_only(void) { }
Arnd Bergmann64c5c752014-06-04 04:40:19 -050030#endif
Benjamin Herrenschmidt98d9f30c82011-04-11 11:37:07 +100031
Guenter Roecka6f10862018-03-05 15:22:30 -080032#if IS_ENABLED(CONFIG_OF_IRQ)
33int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
34#else
35static inline int
36of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
37{
38 return 0;
39}
40#endif
41
Sebastian Andrzej Siewior04bea682011-01-24 09:58:55 +053042#endif