Commit d28c0d84 authored by Frank Li's avatar Frank Li Committed by Lorenzo Pieralisi
Browse files

PCI: layerscape: Add support for link-down notification 

Add support to pass link-down notification to the endpoint function
driver so that it can process the LINK_DOWN event.

Link: https://lore.kernel.org/r/20230720135834.1977616-1-Frank.Li@nxp.com


Signed-off-by: default avatarFrank Li <Frank.Li@nxp.com>
Signed-off-by: default avatarLorenzo Pieralisi <lpieralisi@kernel.org>
Acked-by: default avatarManivannan Sadhasivam <mani@kernel.org>
parent 06c2afb8

drivers/pci/controller/dwc/pci-layerscape-ep.c

+1 −0
Original line number Diff line number Diff line
@@ -89,6 +89,7 @@ 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) {

		dev_dbg(pci->dev, "Link down\n");

		pci_epc_linkdown(pci->ep.epc);

	} else if (val & PEX_PF0_PME_MES_DR_HRD) {

		dev_dbg(pci->dev, "Hot reset\n");

	}