diff options
| author | Krishna chaitanya chundru <quic_krichai@quicinc.com> | 2024-11-23 00:40:00 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2025-01-18 11:35:11 -0600 |
| commit | 36971d6c5a9a134c15760ae9fd13c6d5f9a36abb (patch) | |
| tree | 0840571c30cea73266ba7900a4601b00b7f72777 | |
| parent | 8d3bf19f1b585a3cc0027f508b64c33484db8d0d (diff) | |
PCI: qcom: Don't wait for link if we can detect Link Up
If we have a 'global' IRQ for Link Up events, we need not wait for the
link to be up during PCI initialization, which reduces startup time.
Check for 'global' IRQ, and if present, set 'use_linkup_irq',
so dw_pcie_host_init() doesn't wait for the link to come up.
Link: https://lore.kernel.org/r/20241123-remove_wait2-v5-2-b5f9e6b794c2@quicinc.com
Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-qcom.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index dc102d8bd58c..656d2be9d87f 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -1703,6 +1703,10 @@ static int qcom_pcie_probe(struct platform_device *pdev) platform_set_drvdata(pdev, pcie); + irq = platform_get_irq_byname_optional(pdev, "global"); + if (irq > 0) + pp->use_linkup_irq = true; + ret = dw_pcie_host_init(pp); if (ret) { dev_err(dev, "cannot initialize host\n"); @@ -1716,7 +1720,6 @@ static int qcom_pcie_probe(struct platform_device *pdev) goto err_host_deinit; } - irq = platform_get_irq_byname_optional(pdev, "global"); if (irq > 0) { ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, qcom_pcie_global_irq_thread, |