Some PCIe endpoint controllers need vendor-specific initialization
before the common code initialization. Add a new 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 ca8f1804ee10..1b7e9e1b8d52 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)
dw_pcie_version_detect(pci);
+ if (ep->ops->ep_pre_init)
+ ep->ops->ep_pre_init(ep);
+
dw_pcie_iatu_detect(pci);
ep->ib_window_map = devm_bitmap_zalloc(dev, pci->num_ib_windows,
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index b541f653c209..9ed9621a12e4 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -317,6 +317,7 @@ struct dw_pcie_rp {
};
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
