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Commit ff1f4ee9 authored by Anton Vorontsov's avatar Anton Vorontsov Committed by Paul Mackerras
Browse files

powerpc: Implement OF PCI address accessors stubs for CONFIG_PCI=n 



To avoid "#ifdef CONFIG_PCI" in the drivers we should provide stubs in
place of OF PCI address accessors.

Without these stubs build breaks for drivers not strictly requiring PCI,
for example CONFIG_FB_OF=y without CONFIG_PCI:

  LD      .tmp_vmlinux1
drivers/built-in.o: In function `offb_map_reg':
offb.c:(.text+0x6e7c): undefined reference to `of_get_pci_address'

OF PCI IRQ accessors require pci_dev argument, so drivers using PCI
IRQs should depend on CONFIG_PCI anyway.

Signed-off-by: default avatarAnton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 9a24729d

include/asm-powerpc/prom.h

+16 −0
Original line number Diff line number Diff line
@@ -212,8 +212,16 @@ extern u64 of_translate_dma_address(struct device_node *dev, 
 */

extern const u32 *of_get_address(struct device_node *dev, int index,

			   u64 *size, unsigned int *flags);

#ifdef CONFIG_PCI

extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no,

			       u64 *size, unsigned int *flags);

#else

static inline const u32 *of_get_pci_address(struct device_node *dev,

		int bar_no, u64 *size, unsigned int *flags)

{

	return NULL;

}

#endif /* CONFIG_PCI */



/* Get an address as a resource. Note that if your address is

 * a PIO address, the conversion will fail if the physical address
@@ -223,8 +231,16 @@ extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no, 
 */

extern int of_address_to_resource(struct device_node *dev, int index,

				  struct resource *r);

#ifdef CONFIG_PCI

extern int of_pci_address_to_resource(struct device_node *dev, int bar,

				      struct resource *r);

#else

static inline int of_pci_address_to_resource(struct device_node *dev, int bar,

		struct resource *r)

{

	return -ENOSYS;

}

#endif /* CONFIG_PCI */



/* Parse the ibm,dma-window property of an OF node into the busno, phys and

 * size parameters.