linux-kernel - [PATCH V2 2/4] PCI: dwc: Add a DWC wrapper to pci_epc_deinit

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Date:   Thu, 13 Oct 2022 23:48:13 +0530
From:   Vidya Sagar <vidyas@...dia.com>
To:     <jingoohan1@...il.com>, <gustavo.pimentel@...opsys.com>,
        <lpieralisi@...nel.org>, <robh@...nel.org>, <kw@...ux.com>,
        <bhelgaas@...gle.com>, <mani@...nel.org>, <kishon@...com>
CC:     <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <kthota@...dia.com>, <mmaddireddy@...dia.com>, <vidyas@...dia.com>,
        <sagar.tv@...il.com>
Subject: [PATCH V2 2/4] PCI: dwc: Add a DWC wrapper to pci_epc_deinit_notify()

Add a wrapper for the pci_epc_deinit_notify() at the DWC layer for all
the DesignWare based platform controller drivers to invoke during their
respective endpoint controllers deinitialization.

Signed-off-by: Vidya Sagar <vidyas@...dia.com>
---
V2:
* Reworded the commit message

 drivers/pci/controller/dwc/pcie-designware-ep.c | 8 ++++++++
 drivers/pci/controller/dwc/pcie-designware.h    | 5 +++++
 2 files changed, 13 insertions(+)

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index f300ea2f7bf7..fd11c2e68fef 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -737,6 +737,14 @@ int dw_pcie_ep_init_notify(struct dw_pcie_ep *ep)
 }
 EXPORT_SYMBOL_GPL(dw_pcie_ep_init_notify);
 
+void dw_pcie_ep_deinit_notify(struct dw_pcie_ep *ep)
+{
+	struct pci_epc *epc = ep->epc;
+
+	pci_epc_deinit_notify(epc);
+}
+EXPORT_SYMBOL_GPL(dw_pcie_ep_deinit_notify);
+
 int dw_pcie_ep_init(struct dw_pcie_ep *ep)
 {
 	int ret;
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index 7252513956b7..0f3ab39c5281 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -469,6 +469,7 @@ static inline void __iomem *dw_pcie_own_conf_map_bus(struct pci_bus *bus,
 void dw_pcie_ep_linkup(struct dw_pcie_ep *ep);
 int dw_pcie_ep_init(struct dw_pcie_ep *ep);
 int dw_pcie_ep_init_notify(struct dw_pcie_ep *ep);
+void dw_pcie_ep_deinit_notify(struct dw_pcie_ep *ep);
 void dw_pcie_ep_exit(struct dw_pcie_ep *ep);
 int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no);
 int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
@@ -495,6 +496,10 @@ static inline int dw_pcie_ep_init_notify(struct dw_pcie_ep *ep)
 	return 0;
 }
 
+static inline void dw_pcie_ep_deinit_notify(struct dw_pcie_ep *ep)
+{
+}
+
 static inline void dw_pcie_ep_exit(struct dw_pcie_ep *ep)
 {
 }
-- 
2.17.1