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From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Date: Thu, 06 Jun 2024 12:56:38 +0530
Subject: [PATCH 5/5] PCI: layerscape-ep: Use the generic
 dw_pcie_ep_linkdown() API to handle Link Down event
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To: Vignesh Raghavendra <vigneshr@ti.com>, 
 Siddharth Vadapalli <s-vadapalli@ti.com>, 
 Lorenzo Pieralisi <lpieralisi@kernel.org>, 
 =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= <kw@linux.com>, 
 Rob Herring <robh@kernel.org>, Bjorn Helgaas <bhelgaas@google.com>, 
 Richard Zhu <hongxing.zhu@nxp.com>, Lucas Stach <l.stach@pengutronix.de>, 
 Shawn Guo <shawnguo@kernel.org>, Sascha Hauer <s.hauer@pengutronix.de>, 
 Pengutronix Kernel Team <kernel@pengutronix.de>, 
 Fabio Estevam <festevam@gmail.com>, Minghuan Lian <minghuan.Lian@nxp.com>, 
 Mingkai Hu <mingkai.hu@nxp.com>, Roy Zang <roy.zang@nxp.com>, 
 Jesper Nilsson <jesper.nilsson@axis.com>, Jingoo Han <jingoohan1@gmail.com>, 
 Srikanth Thokala <srikanth.thokala@intel.com>, 
 Marek Vasut <marek.vasut+renesas@gmail.com>, 
 Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>, 
 Thierry Reding <thierry.reding@gmail.com>, 
 Jonathan Hunter <jonathanh@nvidia.com>, 
 Kunihiko Hayashi <hayashi.kunihiko@socionext.com>, 
 Masami Hiramatsu <mhiramat@kernel.org>, 
 Kishon Vijay Abraham I <kishon@kernel.org>
Cc: linux-omap@vger.kernel.org, linux-pci@vger.kernel.org, 
 linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, 
 imx@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, 
 linux-arm-kernel@axis.com, linux-arm-msm@vger.kernel.org, 
 linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org, 
 mhi@lists.linux.dev, Niklas Cassel <cassel@kernel.org>, 
 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>, 
 Bjorn Helgaas <helgaas@kernel.org>

Now that the API is available, let's make use of it. It also handles the
reinitialization of DWC non-sticky registers in addition to sending the
notification to EPF drivers.

Reported-by: Bjorn Helgaas <helgaas@kernel.org>
Closes: https://lore.kernel.org/linux-pci/20240528195539.GA458945@bhelgaas/
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/pci/controller/dwc/pci-layerscape-ep.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c
index 35bb481564c7..a4a800699f89 100644
--- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
+++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
@@ -104,7 +104,7 @@ 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);
+		dw_pcie_ep_linkdown(&pci->ep);
 	} else if (val & PEX_PF0_PME_MES_DR_HRD) {
 		dev_dbg(pci->dev, "Hot reset\n");
 	}

-- 
2.25.1