diff options
| author | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2022-09-14 09:53:42 +0200 |
|---|---|---|
| committer | Lorenzo Pieralisi <lpieralisi@kernel.org> | 2022-10-05 16:17:27 +0200 |
| commit | 19619b43f0319c7a0564f6ff35aca5f62e7cb118 (patch) | |
| tree | b85921fa640881e2d74b89caf3c577bedb9c4344 /drivers/pci | |
| parent | PCI: qcom-ep: Make use of the cached dev pointer (diff) | |
| download | linux-19619b43f0319c7a0564f6ff35aca5f62e7cb118.tar.xz linux-19619b43f0319c7a0564f6ff35aca5f62e7cb118.zip | |
PCI: qcom-ep: Disable IRQs during driver remove
Disable the Global and PERST IRQs during driver remove to avoid getting
spurious IRQs after resource deallocation.
Link: https://lore.kernel.org/r/20220914075350.7992-5-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-qcom-ep.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c index 51afd9c547f5..d7a8dd0533b0 100644 --- a/drivers/pci/controller/dwc/pcie-qcom-ep.c +++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c @@ -581,13 +581,13 @@ static irqreturn_t qcom_pcie_ep_perst_irq_thread(int irq, void *data) static int qcom_pcie_ep_enable_irq_resources(struct platform_device *pdev, struct qcom_pcie_ep *pcie_ep) { - int irq, ret; + int ret; - irq = platform_get_irq_byname(pdev, "global"); - if (irq < 0) - return irq; + pcie_ep->global_irq = platform_get_irq_byname(pdev, "global"); + if (pcie_ep->global_irq < 0) + return pcie_ep->global_irq; - ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, + ret = devm_request_threaded_irq(&pdev->dev, pcie_ep->global_irq, NULL, qcom_pcie_ep_global_irq_thread, IRQF_ONESHOT, "global_irq", pcie_ep); @@ -604,7 +604,7 @@ static int qcom_pcie_ep_enable_irq_resources(struct platform_device *pdev, "perst_irq", pcie_ep); if (ret) { dev_err(&pdev->dev, "Failed to request PERST IRQ\n"); - disable_irq(irq); + disable_irq(pcie_ep->global_irq); return ret; } @@ -702,6 +702,9 @@ static int qcom_pcie_ep_remove(struct platform_device *pdev) { struct qcom_pcie_ep *pcie_ep = platform_get_drvdata(pdev); + disable_irq(pcie_ep->global_irq); + disable_irq(pcie_ep->perst_irq); + if (pcie_ep->link_status == QCOM_PCIE_EP_LINK_DISABLED) return 0; |