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    SubjectRe: [RFC PATCH v8 4/7] of/irq: Adjust of pci irq parsing for multiple interrupts
    On Thu, Oct 26, 2017 at 09:28:37PM +0800, Jeffy Chen wrote:
    > 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 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;

    Use of_property_match_string

    > + }
    > +
    > + rc = of_irq_parse_one(dn, index, out_irq);
    > if (!rc)
    > return rc;
    > }
    > --
    > 2.11.0
    >
    >

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