[PATCH 1/2] PCI: layerscape: Add support for Link down notification

Frank Li Frank.Li at nxp.com
Fri Jun 16 02:41:11 AEST 2023


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 at 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



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