diff mbox series

[v11,6/8] PCI: imx6: Mark the link down as none fatal error

Message ID 1655189942-12678-7-git-send-email-hongxing.zhu@nxp.com (mailing list archive)
State Superseded
Headers show
Series PCI: imx6: refine codes and add the error propagation | expand

Commit Message

Hongxing Zhu June 14, 2022, 6:59 a.m. UTC 
let the driver probe successfully, return zero in imx6_pcie_start_link()
when PCIe link is down.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
---
 drivers/pci/controller/dwc/pci-imx6.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index c05974abd954..68d0bd703bbd 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -850,7 +850,9 @@  static int imx6_pcie_start_link(struct dw_pcie *pci)
 	/* Start LTSSM. */
 	imx6_pcie_ltssm_enable(dev);
 
-	dw_pcie_wait_for_link(pci);
+	ret = dw_pcie_wait_for_link(pci);
+	if (ret)
+		goto err_reset_phy;
 
 	if (pci->link_gen == 2) {
 		/* Allow Gen2 mode after the link is up. */
@@ -886,7 +888,9 @@  static int imx6_pcie_start_link(struct dw_pcie *pci)
 		}
 
 		/* Make sure link training is finished as well! */
-		dw_pcie_wait_for_link(pci);
+		ret = dw_pcie_wait_for_link(pci);
+		if (ret)
+			goto err_reset_phy;
 	} else {
 		dev_info(dev, "Link: Gen2 disabled\n");
 	}
@@ -900,7 +904,7 @@  static int imx6_pcie_start_link(struct dw_pcie *pci)
 		dw_pcie_readl_dbi(pci, PCIE_PORT_DEBUG0),
 		dw_pcie_readl_dbi(pci, PCIE_PORT_DEBUG1));
 	imx6_pcie_reset_phy(imx6_pcie);
-	return ret;
+	return 0;
 }
 
 static int imx6_pcie_host_init(struct pcie_port *pp)