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| author | Bjorn Helgaas <bhelgaas@google.com> | 2016-03-15 14:56:16 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-03-15 14:56:16 +0100 |
| commit | cfeb8139a1fbbbae3f1e986133f4e9e7833eeac4 (patch) | |
| tree | 0f3a162561d9a64cf4f509fb516f2d58f70530d9 /drivers/pci/probe.c | |
| parent | Merge branch 'pci/host-designware' into next (diff) | |
| parent | PCI: hv: Add paravirtual PCI front-end for Microsoft Hyper-V VMs (diff) | |
| download | linux-cfeb8139a1fbbbae3f1e986133f4e9e7833eeac4.tar.xz linux-cfeb8139a1fbbbae3f1e986133f4e9e7833eeac4.zip | |
Merge branch 'pci/host-hv' into next
* pci/host-hv:
PCI: hv: Add paravirtual PCI front-end for Microsoft Hyper-V VMs
PCI: Look up IRQ domain by fwnode_handle
PCI: Add fwnode_handle to x86 pci_sysdata
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index b23449902a17..c4e1eff8b07c 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -15,6 +15,7 @@ #include <linux/pci-aspm.h> #include <linux/aer.h> #include <linux/acpi.h> +#include <linux/irqdomain.h> #include "pci.h" #define CARDBUS_LATENCY_TIMER 176 /* secondary latency timer */ @@ -674,6 +675,20 @@ static struct irq_domain *pci_host_bridge_msi_domain(struct pci_bus *bus) if (!d) d = pci_host_bridge_acpi_msi_domain(bus); +#ifdef CONFIG_PCI_MSI_IRQ_DOMAIN + /* + * If no IRQ domain was found via the OF tree, try looking it up + * directly through the fwnode_handle. + */ + if (!d) { + struct fwnode_handle *fwnode = pci_root_bus_fwnode(bus); + + if (fwnode) + d = irq_find_matching_fwnode(fwnode, + DOMAIN_BUS_PCI_MSI); + } +#endif + return d; } |