Certain platforms like Intel need to configure
registers to enable the interrupts.
Map Irq callback helps to perform platform specific
configurations while assigning or enabling the interrupts.
Signed-off-by: Dilip Kota <eswara.kota@xxxxxxxxxxxxxxx>
---
drivers/pci/controller/dwc/pcie-designware-host.c | 2 +-
drivers/pci/controller/dwc/pcie-designware.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index f93252d0da5b..5880d2b72ef8 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -470,7 +470,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
bridge->sysdata = pp;
bridge->busnr = pp->root_bus_nr;
bridge->ops = &dw_pcie_ops;
- bridge->map_irq = of_irq_parse_and_map_pci;
+ bridge->map_irq = pp->map_irq ? pp->map_irq : of_irq_parse_and_map_pci;
bridge->swizzle_irq = pci_common_swizzle;
ret = pci_scan_root_bus_bridge(bridge);
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index ffed084a0b4f..604abc4fa89b 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -173,6 +173,7 @@ struct pcie_port {
struct resource *busn;
int irq;
const struct dw_pcie_host_ops *ops;
+ int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
int msi_irq;
struct irq_domain *irq_domain;
struct irq_domain *msi_domain;
--
2.11.0
