* [PATCH] PCI: dwc: do not ignore link errors
@ 2021-07-21 15:23 Christian Gmeiner
0 siblings, 0 replies; only message in thread
From: Christian Gmeiner @ 2021-07-21 15:23 UTC (permalink / raw)
To: Jingoo Han, Gustavo Pimentel, Lorenzo Pieralisi, Rob Herring,
Krzysztof Wilczyński, Bjorn Helgaas
Cc: Christian Gmeiner, linux-pci, linux-kernel
This fixes long boot delays of about 10 seconds.
I am working on a device powered by an TI am65 SoC where
we have a PCIe expansion slot. If there is no PCIe device
connected I see boot delays caused by pci_host_probe(..).
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
---
drivers/pci/controller/dwc/pcie-designware-host.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index a608ae1fad57..82ba429246f8 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -408,8 +408,9 @@ int dw_pcie_host_init(struct pcie_port *pp)
goto err_free_msi;
}
- /* Ignore errors, the link may come up later */
- dw_pcie_wait_for_link(pci);
+ int ret = dw_pcie_wait_for_link(pci);
+ if (ret)
+ goto err_free_msi;
bridge->sysdata = pp;
--
2.31.1
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2021-07-21 15:23 [PATCH] PCI: dwc: do not ignore link errors Christian Gmeiner
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