diff options
| author | Murali Karicheri <m-karicheri2@ti.com> | 2016-04-11 17:50:30 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-04-14 22:40:42 +0300 |
| commit | 025dd3daeda77f61a280da87ae7015a6808dfe1f (patch) | |
| tree | c56ea2086ea3bdca084864c75649fada26bc2d4f /drivers/pci/host/pci-keystone.h | |
| parent | 9735a22799b9214d17d3c231fe377fc852f042e9 (diff) | |
| download | linux-025dd3daeda77f61a280da87ae7015a6808dfe1f.tar.xz | |
PCI: keystone: Add error IRQ handler
Keystone PCI hardware generates error interrupts at RC using a platform IRQ
instead of a standard MSI or legacy IRQ. Add a simple error handler that
logs the fatal interrupt status to the console.
[bhelgaas: s/node/dev->of_node/, tidy comments, return irqreturn_t directly]
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
CC: Pawel Moll <pawel.moll@arm.com>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
CC: Kumar Gala <galak@codeaurora.org>
Diffstat (limited to 'drivers/pci/host/pci-keystone.h')
| -rw-r--r-- | drivers/pci/host/pci-keystone.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pci/host/pci-keystone.h b/drivers/pci/host/pci-keystone.h index f0944e8c4b02..a5b0cb2ba4d7 100644 --- a/drivers/pci/host/pci-keystone.h +++ b/drivers/pci/host/pci-keystone.h @@ -29,6 +29,9 @@ struct keystone_pcie { int msi_host_irqs[MAX_MSI_HOST_IRQS]; struct device_node *msi_intc_np; struct irq_domain *legacy_irq_domain; + struct device_node *np; + + int error_irq; /* Application register space */ void __iomem *va_app_base; @@ -42,6 +45,9 @@ phys_addr_t ks_dw_pcie_get_msi_addr(struct pcie_port *pp); /* Keystone specific PCI controller APIs */ void ks_dw_pcie_enable_legacy_irqs(struct keystone_pcie *ks_pcie); void ks_dw_pcie_handle_legacy_irq(struct keystone_pcie *ks_pcie, int offset); +void ks_dw_pcie_enable_error_irq(void __iomem *reg_base); +irqreturn_t ks_dw_pcie_handle_error_irq(struct device *dev, + void __iomem *reg_base); int ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie, struct device_node *msi_intc_np); int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus, |