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>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
linuxppc-dev@lists.ozlabs.org (open list:PCI DRIVER FOR
FREESCALE LAYERSCAPE),
linux-pci@vger.kernel.org (open list:PCI DRIVER FOR FREESCALE
LAYERSCAPE),
linux-arm-kernel@lists.infradead.org (moderated list:PCI DRIVER
FOR 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 [thread overview]
Message-ID: <20230615164113.2270698-1-Frank.Li@nxp.com> (raw)
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
next reply other threads:[~2023-06-15 16:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-15 16:41 Frank Li [this message]
2023-06-15 16:41 ` [PATCH 2/2] PCI: layerscape: Add the workaround for lost link capablities during reset Frank Li
2023-07-17 14:03 ` Frank Li
2023-07-17 14:45 ` Rob Herring
2023-07-17 14:57 ` Frank Li
2023-07-17 15:59 ` Manivannan Sadhasivam
2023-07-17 18:45 ` Frank Li
2023-07-18 5:03 ` Manivannan Sadhasivam
2023-07-19 12:26 ` Markus Elfring
2023-07-17 14:01 ` [PATCH 1/2] PCI: layerscape: Add support for Link down notification Frank Li
2023-07-17 15:50 ` Manivannan Sadhasivam
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