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.c...@rock-chips.com>
---

Changes in v10: None
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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