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linux-next/include/linux/of_pci.h
Grant Likely 16b84e5a50 of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.
Several architectures open code effectively the same code block for
finding and mapping PCI irqs. This patch consolidates it down to a
single function.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Michal Simek <monstr@monstr.eu>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-24 11:50:36 +01:00

30 lines
1.0 KiB
C

#ifndef __OF_PCI_H
#define __OF_PCI_H
#include <linux/pci.h>
#include <linux/msi.h>
struct pci_dev;
struct of_phandle_args;
int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq);
int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
struct device_node;
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_pci_parse_bus_range(struct device_node *node, struct resource *res);
#if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
int of_pci_msi_chip_add(struct msi_chip *chip);
void of_pci_msi_chip_remove(struct msi_chip *chip);
struct msi_chip *of_pci_find_msi_chip_by_node(struct device_node *of_node);
#else
static inline int of_pci_msi_chip_add(struct msi_chip *chip) { return -EINVAL; }
static inline void of_pci_msi_chip_remove(struct msi_chip *chip) { }
static inline struct msi_chip *
of_pci_find_msi_chip_by_node(struct device_node *of_node) { return NULL; }
#endif
#endif