Some PCIe endpoint controller needs vendor-specific initialization
before the common code initialization. Add a nwe callback function
ep_pre_init() for it.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
drivers/pci/controller/dwc/pcie-designware-ep.c | 3 +++
drivers/pci/controller/dwc/pcie-designware.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index 5dc73f766c38..72158e6af378 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -709,6 +709,9 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep)
}
}
+ if (ep->ops->ep_pre_init)
+ ep->ops->ep_pre_init(ep);
+
dw_pcie_iatu_detect(pci);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "addr_space");
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index b5f528536358..02dcc47749de 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -207,6 +207,7 @@ enum dw_pcie_as_type {
};
struct dw_pcie_ep_ops {
+ void (*ep_pre_init)(struct dw_pcie_ep *ep);
void (*ep_init)(struct dw_pcie_ep *ep);
int (*raise_irq)(struct dw_pcie_ep *ep, u8 func_no,
enum pci_epc_irq_type type, u16 interrupt_num);
--
2.25.1
