From: Krishna chaitanya chundru Date: Fri, 22 Nov 2024 19:10:00 +0000 (+0530) Subject: PCI: qcom: Don't wait for link if we can detect Link Up X-Git-Tag: v6.14-rc1~90^2~9^2~10 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=36971d6c5a9a;p=thirdparty%2Flinux.git 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 Signed-off-by: Krzysztof Wilczyński [bhelgaas: commit log] Signed-off-by: Bjorn Helgaas Reviewed-by: Manivannan Sadhasivam Reviewed-by: Niklas Cassel --- diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index dc102d8bd58c6..656d2be9d87fe 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,