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From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
To: lpieralisi@kernel.org, robh+dt@kernel.org, kw@linux.com,
	bhelgaas@google.com, krzk+dt@kernel.org, geert+renesas@glider.be,
	magnus.damm@gmail.com
Cc: marek.vasut+renesas@gmail.com, linux-pci@vger.kernel.org,
	devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Subject: [PATCH v4 05/12] PCI: dwc: Add ep_pre_init() callback to dw_pcie_ep_ops
Date: Fri, 22 Jul 2022 20:07:37 +0900	[thread overview]
Message-ID: <20220722110744.2274466-6-yoshihiro.shimoda.uh@renesas.com> (raw)
In-Reply-To: <20220722110744.2274466-1-yoshihiro.shimoda.uh@renesas.com>

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 --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index 055058b6ff42..9a47448026d7 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -701,6 +701,9 @@ 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 4b33a78c1c19..0fc96c7cb15c 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -286,6 +286,7 @@ 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


  parent reply	other threads:[~2022-07-22 11:08 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-22 11:07 [PATCH v4 00/12] treewide: PCI: renesas: Add R-Car Gen4 PCIe support Yoshihiro Shimoda
2022-07-22 11:07 ` [PATCH v4 01/12] dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host Yoshihiro Shimoda
2022-07-22 11:07 ` [PATCH v4 02/12] dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint Yoshihiro Shimoda
2022-07-22 11:07 ` [PATCH v4 03/12] PCI: Add PCI_EXP_LNKCAP_MLW macros Yoshihiro Shimoda
2022-07-22 11:07 ` [PATCH v4 04/12] PCI: controller: dwc: Expose dw_pcie_ep_exit() to module Yoshihiro Shimoda
2022-07-22 11:07 ` Yoshihiro Shimoda [this message]
2022-07-22 11:07 ` [PATCH v4 06/12] PCI: dwc: Add reset_all_bars flag Yoshihiro Shimoda
2022-07-22 11:07 ` [PATCH v4 07/12] PCI: dwc: Avoid reading a register to detect whether eDMA exists Yoshihiro Shimoda
2022-07-22 11:07 ` [PATCH v4 08/12] PCI: renesas: Add R-Car Gen4 PCIe Host support Yoshihiro Shimoda
2022-07-22 11:07 ` [PATCH v4 09/12] PCI: renesas: Add R-Car Gen4 PCIe Endpoint support Yoshihiro Shimoda
2022-07-22 11:07 ` [PATCH v4 10/12] MAINTAINERS: Update PCI DRIVER FOR RENESAS R-CAR for R-Car Gen4 Yoshihiro Shimoda
2022-07-22 11:07 ` [PATCH v4 11/12] arm64: dts: renesas: r8a779f0: Add PCIe Host and Endpoint nodes Yoshihiro Shimoda
2022-07-22 11:07 ` [PATCH v4 12/12] arm64: dts: renesas: r8a779f0: spider: Enable PCIe Host ch0 Yoshihiro Shimoda

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