diff options
| author |   Robin Murphy <robin.murphy@arm.com> | 2016-09-12 17:13:40 +0100 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2016-09-16 09:34:14 +0100 |
| commit | 987068fcbdb7a085bb11151b91dc6f4c956c4a1b (patch) | |
| tree | 158ddef73ee6ccf6787bab15202ce593382341f1 /include/linux/of_pci.h | |
| parent | Docs: dt: add PCI IOMMU map bindings (diff) | |
| download | linux-dev-987068fcbdb7a085bb11151b91dc6f4c956c4a1b.tar.xz linux-dev-987068fcbdb7a085bb11151b91dc6f4c956c4a1b.zip | |
of/irq: Break out msi-map lookup (again)
The PCI msi-map code is already doing double-duty translating IDs and
retrieving MSI parents, which unsurprisingly is the same functionality
we need for the identically-formatted PCI iommu-map property. Drag the
core parsing routine up yet another layer into the general OF-PCI code,
and further generalise it for either kind of lookup in either flavour
of map property.
Acked-by: Rob Herring <robh+dt@kernel.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'include/linux/of_pci.h')
| -rw-r--r-- | include/linux/of_pci.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h index b969e9443962..7fd5cfce9140 100644 --- a/include/linux/of_pci.h +++ b/include/linux/of_pci.h @@ -17,6 +17,9 @@ 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_check_probe_only(void); +int of_pci_map_rid(struct device_node *np, u32 rid, + const char *map_name, const char *map_mask_name, + struct device_node **target, u32 *id_out); #else static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq) { @@ -52,6 +55,13 @@ of_get_pci_domain_nr(struct device_node *node) return -1; } +static inline int of_pci_map_rid(struct device_node *np, u32 rid, + const char *map_name, const char *map_mask_name, + struct device_node **target, u32 *id_out) +{ + return -EINVAL; +} + static inline void of_pci_check_probe_only(void) { } #endif |