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authorArnd Bergmann <arnd@arndb.de>2014-06-04 04:40:19 -0500
committerRob Herring <robh@kernel.org>2014-06-04 04:45:46 -0500
commit64c5c759084e153272eb05f4103de3e0adf5a88a (patch)
treeb2a52b800f1fc46347974c63d33068a64f370a0f /include/linux/of_pci.h
parent728dd198aa543397c88f6f8e35f4f187b2bbc09d (diff)
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>
Diffstat (limited to 'include/linux/of_pci.h')
-rw-r--r--include/linux/of_pci.h36
1 files changed, 33 insertions, 3 deletions
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 1a1f5ffd5288..dde3a4a0fa5d 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -6,14 +6,44 @@
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;
+
+#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);
+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);
+#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;
+}
+#endif
#if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
int of_pci_msi_chip_add(struct msi_chip *chip);