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From:   Frank Li <Frank.Li@nxp.com>
To:     mani@kernel.org, Minghuan Lian <minghuan.Lian@nxp.com>,
        Mingkai Hu <mingkai.hu@nxp.com>, Roy Zang <roy.zang@nxp.com>,
        Lorenzo Pieralisi <lpieralisi@kernel.org>,
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        Bjorn Helgaas <bhelgaas@google.com>,
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        LAYERSCAPE),
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        LAYERSCAPE),
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        FREESCALE LAYERSCAPE), linux-kernel@vger.kernel.org (open list)
Cc:     imx@lists.linux.dev
Subject: [PATCH 1/2] PCI: layerscape: Add support for Link down notification
Date:   Thu, 15 Jun 2023 12:41:11 -0400
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Add support to pass Link down notification to Endpoint function driver
so that the LINK_DOWN event can be processed by the function.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 drivers/pci/controller/dwc/pci-layerscape-ep.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c
index de4c1758a6c3..4e4fdd1dfea7 100644
--- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
+++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
@@ -88,6 +88,7 @@ static irqreturn_t ls_pcie_ep_event_handler(int irq, void *dev_id)
 
 		dev_dbg(pci->dev, "Link up\n");
 	} else if (val & PEX_PF0_PME_MES_DR_LDD) {
+		pci_epc_linkdown(pci->ep.epc);
 		dev_dbg(pci->dev, "Link down\n");
 	} else if (val & PEX_PF0_PME_MES_DR_HRD) {
 		dev_dbg(pci->dev, "Hot reset\n");
-- 
2.34.1