[linux-block.git] / include / linux / of_pci.h

/* SPDX-License-Identifier: GPL-2.0 */
#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;

#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_PCI)
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);
int of_pci_get_max_link_speed(struct device_node *node);
void of_pci_check_probe_only(void);
int of_pci_map_rid(struct device_node *np, u32 rid,
		   const char *map_name, const char *map_mask_name,
		   struct device_node **target, u32 *id_out);
#else
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 int of_pci_map_rid(struct device_node *np, u32 rid,
			const char *map_name, const char *map_mask_name,
			struct device_node **target, u32 *id_out)
{
	return -EINVAL;
}

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

#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);
#else
static inline 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)
{
	return -EINVAL;
}
#endif

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
04bea68b SAS	2	#ifndef __OF_PCI_H
	3	#define __OF_PCI_H
	4
	5	#include <linux/pci.h>
0d5a6db3	6	#include <linux/msi.h>
04bea68b SAS	7
04bea68b SAS	8	struct pci_dev;
530210c7	9	struct of_phandle_args;
98d9f30c	10	struct device_node;
64c5c759	11
4670d610	12	#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_PCI)
98d9f30c BH	13	struct device_node of_pci_find_child_device(struct device_node parent,
98d9f30c BH	14	unsigned int devfn);
45ab9702	15	int of_pci_get_devfn(struct device_node *np);
64c5c759	16	int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
4e23d3f5	17	int of_pci_parse_bus_range(struct device_node node, struct resource res);
41e5c0f8	18	int of_get_pci_domain_nr(struct device_node *node);
9a1dc389	19	int of_pci_get_max_link_speed(struct device_node *node);
f81c11af	20	void of_pci_check_probe_only(void);
987068fc RM	21	int of_pci_map_rid(struct device_node *np, u32 rid,
	22	const char map_name, const char map_mask_name,
	23	struct device_node *target, u32 id_out);
64c5c759	24	#else
64c5c759 AB	25	static inline struct device_node of_pci_find_child_device(struct device_node parent,
	26	unsigned int devfn)
	27	{
	28	return NULL;
	29	}
	30
	31	static inline int of_pci_get_devfn(struct device_node *np)
	32	{
	33	return -EINVAL;
	34	}
	35
	36	static inline int
	37	of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
	38	{
	39	return 0;
	40	}
	41
	42	static inline int
	43	of_pci_parse_bus_range(struct device_node node, struct resource res)
	44	{
	45	return -EINVAL;
	46	}
41e5c0f8 LD	47
	48	static inline int
	49	of_get_pci_domain_nr(struct device_node *node)
	50	{
	51	return -1;
	52	}
c49b8fc2	53
987068fc RM	54	static inline int of_pci_map_rid(struct device_node *np, u32 rid,
	55	const char map_name, const char map_mask_name,
	56	struct device_node *target, u32 id_out)
	57	{
	58	return -EINVAL;
9a1dc389 SL	59	}
	60
	61	static inline int
	62	of_pci_get_max_link_speed(struct device_node *node)
	63	{
	64	return -EINVAL;
987068fc RM	65	}
987068fc RM	66
f81c11af	67	static inline void of_pci_check_probe_only(void) { }
64c5c759	68	#endif
98d9f30c	69
cbe4097f LD	70	#if defined(CONFIG_OF_ADDRESS)
	71	int of_pci_get_host_bridge_resources(struct device_node *dev,
	72	unsigned char busno, unsigned char bus_max,
	73	struct list_head resources, resource_size_t io_base);
40704b12 AB	74	#else
	75	static inline int of_pci_get_host_bridge_resources(struct device_node *dev,
	76	unsigned char busno, unsigned char bus_max,
	77	struct list_head resources, resource_size_t io_base)
	78	{
	79	return -EINVAL;
	80	}
cbe4097f LD	81	#endif
cbe4097f LD	82
04bea68b	83	#endif