Messages in this thread Patch in this message | | | From | Palmer Dabbelt <> | Subject | [PATCH] pcie-xilinx: OF-PCIe numbers legacy interrupts from 1 | Date | Fri, 23 Jun 2017 14:57:20 -0700 |
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From: "Wesley W. Terpstra" <wesley@sifive.com>
Without this patch we can't use the 4th legacy PCIe interrupt. This is a workaround: there are only 4 legacy interrupts, but since they're numbered starting from 1 instead of 0 this just adds a 5th interrupt.
Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com> Signed-off-by: Wesley W. Terpstra <wesley@sifive.com> --- 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 2fe2df51f9f8..8804145d399a 100644 --- a/drivers/pci/host/pcie-xilinx.c +++ b/drivers/pci/host/pcie-xilinx.c @@ -443,7 +443,7 @@ static irqreturn_t xilinx_pcie_intr_handler(int irq, void *data) val = ((val & XILINX_PCIE_RPIFR1_INTR_MASK) >> XILINX_PCIE_RPIFR1_INTR_SHIFT) + 1; generic_handle_irq(irq_find_mapping(port->leg_domain, - val)); + val + 1)); } } @@ -524,7 +524,7 @@ static int xilinx_pcie_init_irq_domain(struct xilinx_pcie_port *port) return -ENODEV; } - port->leg_domain = irq_domain_add_linear(pcie_intc_node, 4, + port->leg_domain = irq_domain_add_linear(pcie_intc_node, 5, &intx_domain_ops, port); if (!port->leg_domain) { -- 2.13.0
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