linux-stable/include/linux/of_pci.h

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#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;
of/irq: provide more wrappers for !CONFIG_OF The pci-rcar driver is enabled for compile tests, and this has now shown that the driver cannot build without CONFIG_OF, following the inclusion of f8f2fe7355fb "PCI: rcar: Use new OF interrupt mapping when possible": drivers/built-in.o: In function `rcar_pci_map_irq': :(.text+0x1cc7c): undefined reference to `of_irq_parse_and_map_pci' pci/host/pcie-rcar.c: In function 'pci_dma_range_parser_init': pci/host/pcie-rcar.c:875:2: error: implicit declaration of function 'of_n_addr_cells' [-Werror=implicit-function-declaration] As pointed out by Ben Dooks and Geert Uytterhoeven, this is actually supposed to build fine, which we can achieve if we make the declaration of of_irq_parse_and_map_pci conditional on CONFIG_OF and provide an empty inline function otherwise, as we do for a lot of other of interfaces. This lets us build the rcar_pci driver again without CONFIG_OF for build testing. All platforms using this driver select OF, so this doesn't change anything for the users. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: devicetree@vger.kernel.org Cc: Rob Herring <robh+dt@kernel.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Magnus Damm <damm@opensource.se> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ben Dooks <ben.dooks@codethink.co.uk> Cc: linux-pci@vger.kernel.org Cc: linux-sh@vger.kernel.org [robh: drop wrappers for of_n_addr_cells and of_n_size_cells which are low-level functions that should not be used for !OF] Signed-off-by: Rob Herring <robh@kernel.org>
2014-06-04 09:40:19 +00:00
#ifdef CONFIG_OF
int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq);
struct device_node *of_pci_find_child_device(struct device_node *parent,
unsigned int devfn);
int of_pci_get_devfn(struct device_node *np);
of/irq: provide more wrappers for !CONFIG_OF The pci-rcar driver is enabled for compile tests, and this has now shown that the driver cannot build without CONFIG_OF, following the inclusion of f8f2fe7355fb "PCI: rcar: Use new OF interrupt mapping when possible": drivers/built-in.o: In function `rcar_pci_map_irq': :(.text+0x1cc7c): undefined reference to `of_irq_parse_and_map_pci' pci/host/pcie-rcar.c: In function 'pci_dma_range_parser_init': pci/host/pcie-rcar.c:875:2: error: implicit declaration of function 'of_n_addr_cells' [-Werror=implicit-function-declaration] As pointed out by Ben Dooks and Geert Uytterhoeven, this is actually supposed to build fine, which we can achieve if we make the declaration of of_irq_parse_and_map_pci conditional on CONFIG_OF and provide an empty inline function otherwise, as we do for a lot of other of interfaces. This lets us build the rcar_pci driver again without CONFIG_OF for build testing. All platforms using this driver select OF, so this doesn't change anything for the users. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: devicetree@vger.kernel.org Cc: Rob Herring <robh+dt@kernel.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Magnus Damm <damm@opensource.se> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ben Dooks <ben.dooks@codethink.co.uk> Cc: linux-pci@vger.kernel.org Cc: linux-sh@vger.kernel.org [robh: drop wrappers for of_n_addr_cells and of_n_size_cells which are low-level functions that should not be used for !OF] Signed-off-by: Rob Herring <robh@kernel.org>
2014-06-04 09:40:19 +00:00
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);
void of_pci_dma_configure(struct pci_dev *pci_dev);
of/irq: provide more wrappers for !CONFIG_OF The pci-rcar driver is enabled for compile tests, and this has now shown that the driver cannot build without CONFIG_OF, following the inclusion of f8f2fe7355fb "PCI: rcar: Use new OF interrupt mapping when possible": drivers/built-in.o: In function `rcar_pci_map_irq': :(.text+0x1cc7c): undefined reference to `of_irq_parse_and_map_pci' pci/host/pcie-rcar.c: In function 'pci_dma_range_parser_init': pci/host/pcie-rcar.c:875:2: error: implicit declaration of function 'of_n_addr_cells' [-Werror=implicit-function-declaration] As pointed out by Ben Dooks and Geert Uytterhoeven, this is actually supposed to build fine, which we can achieve if we make the declaration of of_irq_parse_and_map_pci conditional on CONFIG_OF and provide an empty inline function otherwise, as we do for a lot of other of interfaces. This lets us build the rcar_pci driver again without CONFIG_OF for build testing. All platforms using this driver select OF, so this doesn't change anything for the users. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: devicetree@vger.kernel.org Cc: Rob Herring <robh+dt@kernel.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Magnus Damm <damm@opensource.se> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ben Dooks <ben.dooks@codethink.co.uk> Cc: linux-pci@vger.kernel.org Cc: linux-sh@vger.kernel.org [robh: drop wrappers for of_n_addr_cells and of_n_size_cells which are low-level functions that should not be used for !OF] Signed-off-by: Rob Herring <robh@kernel.org>
2014-06-04 09:40:19 +00:00
#else
static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
{
return 0;
}
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 void of_pci_dma_configure(struct pci_dev *pci_dev) { }
of/irq: provide more wrappers for !CONFIG_OF The pci-rcar driver is enabled for compile tests, and this has now shown that the driver cannot build without CONFIG_OF, following the inclusion of f8f2fe7355fb "PCI: rcar: Use new OF interrupt mapping when possible": drivers/built-in.o: In function `rcar_pci_map_irq': :(.text+0x1cc7c): undefined reference to `of_irq_parse_and_map_pci' pci/host/pcie-rcar.c: In function 'pci_dma_range_parser_init': pci/host/pcie-rcar.c:875:2: error: implicit declaration of function 'of_n_addr_cells' [-Werror=implicit-function-declaration] As pointed out by Ben Dooks and Geert Uytterhoeven, this is actually supposed to build fine, which we can achieve if we make the declaration of of_irq_parse_and_map_pci conditional on CONFIG_OF and provide an empty inline function otherwise, as we do for a lot of other of interfaces. This lets us build the rcar_pci driver again without CONFIG_OF for build testing. All platforms using this driver select OF, so this doesn't change anything for the users. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: devicetree@vger.kernel.org Cc: Rob Herring <robh+dt@kernel.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Magnus Damm <damm@opensource.se> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ben Dooks <ben.dooks@codethink.co.uk> Cc: linux-pci@vger.kernel.org Cc: linux-sh@vger.kernel.org [robh: drop wrappers for of_n_addr_cells and of_n_size_cells which are low-level functions that should not be used for !OF] Signed-off-by: Rob Herring <robh@kernel.org>
2014-06-04 09:40:19 +00:00
#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);
#endif
#if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
int of_pci_msi_chip_add(struct msi_controller *chip);
void of_pci_msi_chip_remove(struct msi_controller *chip);
struct msi_controller *of_pci_find_msi_chip_by_node(struct device_node *of_node);
#else
static inline int of_pci_msi_chip_add(struct msi_controller *chip) { return -EINVAL; }
static inline void of_pci_msi_chip_remove(struct msi_controller *chip) { }
static inline struct msi_controller *
of_pci_find_msi_chip_by_node(struct device_node *of_node) { return NULL; }
#endif
#endif