Commit c47c74b7 authored by Manivannan Sadhasivam's avatar Manivannan Sadhasivam Committed by Bjorn Helgaas
Browse files

PCI: qcom-ep: Add support for Link down notification 

Add support to pass Link down notification to Endpoint function driver so
that the LINK_DOWN event can be processed by the function.

Link: https://lore.kernel.org/r/20230602114756.36586-7-manivannan.sadhasivam@linaro.org


Signed-off-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: default avatarLorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarKishon Vijay Abraham I <kishon@kernel.org>
Reviewed-by: default avatarDamien Le Moal <dlemoal@kernel.org>
parent 6360efb9

drivers/pci/controller/dwc/pcie-qcom-ep.c

+1 −0
Original line number Diff line number Diff line
@@ -569,6 +569,7 @@ static irqreturn_t qcom_pcie_ep_global_irq_thread(int irq, void *data) 
	if (FIELD_GET(PARF_INT_ALL_LINK_DOWN, status)) {

		dev_dbg(dev, "Received Linkdown event\n");

		pcie_ep->link_status = QCOM_PCIE_EP_LINK_DOWN;

		pci_epc_linkdown(pci->ep.epc);

	} else if (FIELD_GET(PARF_INT_ALL_BME, status)) {

		dev_dbg(dev, "Received BME event. Link is enabled!\n");

		pcie_ep->link_status = QCOM_PCIE_EP_LINK_ENABLED;