The events_bitmap initialization in starfive_pcie_probe() previously masked out the PLDA_AXI_DOORBELL and PLDA_PCIE_DOORBELL events. These masking has been removed, allowing these events to be included in the bitmap. With this change ensures that all interrupt events are properly accounted for and may be necessary for handling doorbell events in certain use cases. PCIe Doorbell Events: These are typically used to notify a device about an event or to trigger an action. For example, a host system can write to a doorbell register on a PCIe device to signal that new data is available or that an operation should start12. AXI-PCIe Bridge: This bridge acts as a protocol converter between AXI (Advanced eXtensible Interface) and PCIe (Peripheral Component Interconnect Express) domains. It allows transactions to be converted and communicated between these two different protocols3. Fixes: 39b91eb40c6a ("PCI: starfive: Add JH7110 PCIe controller") Cc: Minda Chen <minda.chen@xxxxxxxxxxxxxxxx> Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx> --- v2: new patch --- drivers/pci/controller/plda/pcie-starfive.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/pci/controller/plda/pcie-starfive.c b/drivers/pci/controller/plda/pcie-starfive.c index e73c1b7bc8efc..d2c2a8e039e10 100644 --- a/drivers/pci/controller/plda/pcie-starfive.c +++ b/drivers/pci/controller/plda/pcie-starfive.c @@ -410,9 +410,7 @@ static int starfive_pcie_probe(struct platform_device *pdev) plda->host_ops = &sf_host_ops; plda->num_events = PLDA_MAX_EVENT_NUM; /* mask doorbell event */ - plda->events_bitmap = GENMASK(PLDA_INT_EVENT_NUM - 1, 0) - & ~BIT(PLDA_AXI_DOORBELL) - & ~BIT(PLDA_PCIE_DOORBELL); + plda->events_bitmap = GENMASK(PLDA_INT_EVENT_NUM - 1, 0); plda->events_bitmap <<= PLDA_NUM_DMA_EVENTS; ret = plda_pcie_host_init(&pcie->plda, &starfive_pcie_ops, &stf_pcie_event); -- 2.48.1