[MIPS] BCM1480: Fix interrupt routing, take 2.

Signed-off-by: N Ralf Baechle <ralf@linux-mips.org>

[MIPS] BCM1480: Fix interrupt routing, take 2.
Signed-off-by: N Ralf Baechle <ralf@linux-mips.org>
f435a91e · Ralf Baechle · 7e1fb765 · f435a91e
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arch/mips/pci/pci-bcm1480.c arch/mips/pci/pci-bcm1480.c +4 -1

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--- a/arch/mips/pci/pci-bcm1480.c
+++ b/arch/mips/pci/pci-bcm1480.c
@@ -76,7 +76,10 @@ static inline void WRITECFG32(u32 addr, u32 data)

 int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	return K_BCM1480_INT_PCI_INTA + pin;
+	if (pin == 0)
+		return -1;
+
+	return K_BCM1480_INT_PCI_INTA - 1 + pin;
 }

 /* Do platform specific device initialization at pci_enable_device() time */