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Received: from AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) by AS8PR04MB8181.eurprd04.prod.outlook.com (2603:10a6:20b:3f5::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6500.25; Thu, 15 Jun 2023 16:41:46 +0000 Received: from AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::4a2a:262e:415f:e41c]) by AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::4a2a:262e:415f:e41c%7]) with mapi id 15.20.6477.035; Thu, 15 Jun 2023 16:41:45 +0000 From: Frank Li To: mani@kernel.org, Minghuan Lian , Mingkai Hu , Roy Zang , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84?= =?utf-8?q?ski?= , Rob Herring , Bjorn Helgaas , 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 Message-Id: <20230615164113.2270698-1-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 X-ClientProxiedBy: BY5PR13CA0036.namprd13.prod.outlook.com (2603:10b6:a03:180::49) To AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM6PR04MB4838:EE_|AS8PR04MB8181:EE_ X-MS-Office365-Filtering-Correlation-Id: 82d002aa-4ed3-4f30-e2f1-08db6dbf67fe X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Frank Li Acked-by: Manivannan Sadhasivam --- 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");