The IRQ domain for INTX interrupts has 4 entries, numbered 0 to 3. This
matches what the hardware reports from the interrupt FIFO exactly, but
xilinx_pcie_intr_handler was adding 1 to that value to convert to the
range 1 to 4. Stop adding 1, such that all of INTA through to INTD fall
within the range of the IRQ domain.
Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx>
Fixes: 8961def56845 ("PCI: xilinx: Add Xilinx AXI PCIe Host Bridge IP driver")
---
Changes in v3:
- Split out from Boston patchset.
Changes in v2:
- Add Fixes tag.
drivers/pci/host/pcie-xilinx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index 6c5a503..8013e83 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -451,8 +451,8 @@ static irqreturn_t xilinx_pcie_intr_handler(int irq, void *data)
irq = pcie_read(port, XILINX_PCIE_REG_RPIFR2) &
XILINX_PCIE_RPIFR2_MSG_DATA;
} else {
- val = ((val & XILINX_PCIE_RPIFR1_INTR_MASK) >>
- XILINX_PCIE_RPIFR1_INTR_SHIFT) + 1;
+ val = (val & XILINX_PCIE_RPIFR1_INTR_MASK) >>
+ XILINX_PCIE_RPIFR1_INTR_SHIFT;
irq = irq_find_mapping(port->irq_domain, val);
}
--
2.7.0
--
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