diff mbox series

[v5,2/3] PCI: qcom: Set use_linkup_irq if global IRQ handler is present

Message ID 20241123-remove_wait2-v5-2-b5f9e6b794c2@quicinc.com (mailing list archive)
State New
Headers show
Series PCI: dwc: Skip waiting for link up if vendor drivers can detect Link up event | expand

Commit Message

Krishna Chaitanya Chundru Nov. 22, 2024, 7:10 p.m. UTC 
In cases where a global IRQ handler is present to manage link up
interrupts, it may not be necessary to wait for the link to be up
during PCI initialization which optimizes the bootup time.

So, set use_linkup_irq flag if global IRQ is present and in order to set
the use_linkup_irq flag before calling dw_pcie_host_init() call, which
waits for link to be up, move platform_get_irq_byname_optional() API
above dw_pcie_host_init().

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
---
 drivers/pci/controller/dwc/pcie-qcom.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

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,