linux-kernel - [PATCH v3 3/3] PCI: iproc: Display PCIe Link information

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Message-Id: <20201001060054.6616-4-srinath.mannam@broadcom.com>
Date:   Thu,  1 Oct 2020 11:30:54 +0530
From:   Srinath Mannam <srinath.mannam@...adcom.com>
To:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Ray Jui <rjui@...adcom.com>
Cc:     bcm-kernel-feedback-list@...adcom.com, linux-pci@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Srinath Mannam <srinath.mannam@...adcom.com>
Subject: [PATCH v3 3/3] PCI: iproc: Display PCIe Link information

After successful linkup more comprehensive information about PCIe link
speed and link width will be displayed to the console.

Signed-off-by: Srinath Mannam <srinath.mannam@...adcom.com>
---
 drivers/pci/controller/pcie-iproc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/pci/controller/pcie-iproc.c b/drivers/pci/controller/pcie-iproc.c
index cc5b7823edeb..8ef2d1fe392c 100644
--- a/drivers/pci/controller/pcie-iproc.c
+++ b/drivers/pci/controller/pcie-iproc.c
@@ -1479,6 +1479,7 @@ int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res)
 {
 	struct device *dev;
 	int ret;
+	struct pci_dev *pdev;
 	struct pci_host_bridge *host = pci_host_bridge_from_priv(pcie);
 
 	dev = pcie->dev;
@@ -1542,6 +1543,11 @@ int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res)
 		goto err_power_off_phy;
 	}
 
+	for_each_pci_bridge(pdev, host->bus) {
+		if (pci_pcie_type(pdev) == PCI_EXP_TYPE_ROOT_PORT)
+			pcie_print_link_status(pdev);
+	}
+
 	return 0;
 
 err_power_off_phy:
-- 
2.17.1


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