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authorFrank Li <Frank.Li@nxp.com>2023-07-20 16:58:33 +0300
committerLorenzo Pieralisi <lpieralisi@kernel.org>2023-08-24 11:06:59 +0300
commitd28c0d84ca40e8cbc5c9f4e94f4ec78469d6c07b (patch)
tree88a20007bc76f50e98924f44d787eb90a1ef1e12 /drivers/pci
parent06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5 (diff)
downloadlinux-d28c0d84ca40e8cbc5c9f4e94f4ec78469d6c07b.tar.xz
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: Frank Li <Frank.Li@nxp.com> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/controller/dwc/pci-layerscape-ep.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c
index de4c1758a6c3..e0969ff2ddf7 100644
--- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
+++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
@@ -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");
}