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    Subject[RFC PATCH v9 2/7] of/irq: Adjust of_pci_irq parsing for multiple interrupts
    Date
    Currently we are considering the first irq as the PCI interrupt pin,
    but a PCI device may have multiple interrupts(e.g. PCIe WAKE# pin).

    Only parse the PCI interrupt pin when the irq is unnamed or named as
    "pci".

    Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
    ---

    Changes in v9: None
    Changes in v8: None
    Changes in v7: None
    Changes in v6: None
    Changes in v5: None
    Changes in v3: None
    Changes in v2: None

    drivers/of/of_pci_irq.c | 13 ++++++++++++-
    1 file changed, 12 insertions(+), 1 deletion(-)

    diff --git a/drivers/of/of_pci_irq.c b/drivers/of/of_pci_irq.c
    index 3a05568f65df..8b69211f0b88 100644
    --- a/drivers/of/of_pci_irq.c
    +++ b/drivers/of/of_pci_irq.c
    @@ -27,7 +27,18 @@ int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq
    */
    dn = pci_device_to_OF_node(pdev);
    if (dn) {
    - rc = of_irq_parse_one(dn, 0, out_irq);
    + struct property *prop;
    + const char *name;
    + int index = 0;
    +
    + prop = of_find_property(dn, "interrupt-names", NULL);
    + for (name = of_prop_next_string(prop, NULL); name;
    + name = of_prop_next_string(prop, name), index++) {
    + if (!strcmp(name, "pci"))
    + break;
    + }
    +
    + rc = of_irq_parse_one(dn, index, out_irq);
    if (!rc)
    return rc;
    }
    --
    2.11.0

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