kernel-ark/include/linux/of_pci.h

#ifndef __OF_PCI_H
#define __OF_PCI_H

#include <linux/pci.h>

struct pci_dev;
struct of_irq;
int of_irq_map_pci(const struct pci_dev *pdev, struct of_irq *out_irq);

struct device_node;
struct device_node *of_pci_find_child_device(struct device_node *parent,
					     unsigned int devfn);

#endif
of/pci: move of_irq_map_pci() into generic code There is a tiny difference between PPC32 and PPC64. Microblaze uses the PPC32 variant. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> [grant.likely@secretlab.ca: Added comment to #endif, moved documentation block to function implementation, fixed for non ppc and microblaze compiles] Signed-off-by: Grant Likely <grant.likely@secretlab.ca> 2011-01-24 04:28:55 +00:00			`#ifndef __OF_PCI_H`
			`#define __OF_PCI_H`

			`#include <linux/pci.h>`

			`struct pci_dev;`
			`struct of_irq;`
OF: PCI: const usage needed by MIPS On MIPS we want to call of_irq_map_pci from inside arch/mips/include/asm/pci.h:extern int pcibios_map_irq( const struct pci_dev *dev, u8 slot, u8 pin); For this to work we need to change several functions to const usage. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-pci@vger.kernel.org Cc: devicetree-discuss@lists.ozlabs.org Cc: linux-mips@linux-mips.org Acked-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Patchwork: https://patchwork.linux-mips.org/patch/3710/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 2012-04-12 15:33:07 +00:00			`int of_irq_map_pci(const struct pci_dev pdev, struct of_irq out_irq);`
pci/of: Match PCI devices to OF nodes dynamically powerpc has two different ways of matching PCI devices to their corresponding OF node (if any) for historical reasons. The ppc64 one does a scan looking for matching bus/dev/fn, while the ppc32 one does a scan looking only for matching dev/fn on each level in order to be agnostic to busses being renumbered (which Linux does on some platforms). This removes both and instead moves the matching code to the PCI core itself. It's the most logical place to do it: when a pci_dev is created, we know the parent and thus can do a single level scan for the matching device_node (if any). The benefit is that all archs now get the matching for free. There's one hook the arch might want to provide to match a PHB bus to its device node. A default weak implementation is provided that looks for the parent device device node, but it's not entirely reliable on powerpc for various reasons so powerpc provides its own. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> 2011-04-11 01:37:07 +00:00
			`struct device_node;`
			`struct device_node of_pci_find_child_device(struct device_node parent,`
			`unsigned int devfn);`

of/pci: move of_irq_map_pci() into generic code There is a tiny difference between PPC32 and PPC64. Microblaze uses the PPC32 variant. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> [grant.likely@secretlab.ca: Added comment to #endif, moved documentation block to function implementation, fixed for non ppc and microblaze compiles] Signed-off-by: Grant Likely <grant.likely@secretlab.ca> 2011-01-24 04:28:55 +00:00			`#endif`