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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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9e2aee80c7
The functions in linux/of_pci.h are primarily used by host bridge drivers, so they can be private to drivers/pci/. The remaining functions are still used mostly in host bridge drivers that still live in arch specific code. Hopefully someday, those will get moved into drivers/pci as well. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jingoo Han <jingoohan1@gmail.com>
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __OF_PCI_H
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#define __OF_PCI_H
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#include <linux/pci.h>
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#include <linux/msi.h>
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struct pci_dev;
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struct of_phandle_args;
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struct device_node;
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#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_PCI)
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struct device_node *of_pci_find_child_device(struct device_node *parent,
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unsigned int devfn);
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int of_pci_get_devfn(struct device_node *np);
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void of_pci_check_probe_only(void);
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int of_pci_map_rid(struct device_node *np, u32 rid,
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const char *map_name, const char *map_mask_name,
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struct device_node **target, u32 *id_out);
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#else
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static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
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unsigned int devfn)
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{
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return NULL;
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}
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static inline int of_pci_get_devfn(struct device_node *np)
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{
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return -EINVAL;
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}
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static inline int of_pci_map_rid(struct device_node *np, u32 rid,
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const char *map_name, const char *map_mask_name,
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struct device_node **target, u32 *id_out)
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{
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return -EINVAL;
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}
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static inline void of_pci_check_probe_only(void) { }
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#endif
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#if IS_ENABLED(CONFIG_OF_IRQ)
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int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
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#else
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static inline int
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of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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return 0;
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}
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#endif
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#endif
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