diff mbox series

[v3,03/13] PCI: dwc: Add ep_pre_init() callback to dw_pcie_ep_ops

Message ID 20220701085420.870306-4-yoshihiro.shimoda.uh@renesas.com (mailing list archive)
State Superseded
Delegated to: Geert Uytterhoeven
Headers show
Series treewide: PCI: renesas: Add R-Car Gen4 PCIe support | expand

Commit Message

Yoshihiro Shimoda July 1, 2022, 8:54 a.m. UTC
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@renesas.com>
---
 drivers/pci/controller/dwc/pcie-designware-ep.c | 3 +++
 drivers/pci/controller/dwc/pcie-designware.h    | 1 +
 2 files changed, 4 insertions(+)
diff mbox series

Patch

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);