0d5a6db3aa
This commit adds a very basic registry of msi_chip structures, so that an IRQ controller driver can register an msi_chip, and a PCIe host controller can find it, based on a 'struct device_node'. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
29 lines
941 B
C
29 lines
941 B
C
#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_irq;
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int of_irq_map_pci(const struct pci_dev *pdev, struct of_irq *out_irq);
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struct device_node;
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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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int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
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#if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
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int of_pci_msi_chip_add(struct msi_chip *chip);
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void of_pci_msi_chip_remove(struct msi_chip *chip);
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struct msi_chip *of_pci_find_msi_chip_by_node(struct device_node *of_node);
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#else
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static inline int of_pci_msi_chip_add(struct msi_chip *chip) { return -EINVAL; }
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static inline void of_pci_msi_chip_remove(struct msi_chip *chip) { }
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static inline struct msi_chip *
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of_pci_find_msi_chip_by_node(struct device_node *of_node) { return NULL; }
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#endif
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#endif
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