PCI: aardvark: Use PCI_NUM_INTX

Switch from using a custom LEGACY_IRQ_NUM macro to the generic PCI_NUM_INTX
definition for the number of INTx interrupts.
Signed-off-by: NPaul Burton <paul.burton@imgtec.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>

drivers/pci/host/pci-aardvark.c

@@ -191,7 +191,6 @@
 #define LINK_WAIT_USLEEP_MIN		90000
 #define LINK_WAIT_USLEEP_MAX		100000
 
-#define LEGACY_IRQ_NUM			4
 #define MSI_IRQ_NUM			32
 
 struct advk_pcie {
@@ -729,7 +728,7 @@ static int advk_pcie_init_irq_domain(struct advk_pcie *pcie)
 	irq_chip->irq_unmask = advk_pcie_irq_unmask;
 
 	pcie->irq_domain =
-		irq_domain_add_linear(pcie_intc_node, LEGACY_IRQ_NUM,
+		irq_domain_add_linear(pcie_intc_node, PCI_NUM_INTX,
 				      &advk_pcie_irq_domain_ops, pcie);
 	if (!pcie->irq_domain) {
 		dev_err(dev, "Failed to get a INTx IRQ domain\n");
@@ -786,7 +785,7 @@ static void advk_pcie_handle_int(struct advk_pcie *pcie)
 		advk_pcie_handle_msi(pcie);
 
 	/* Process legacy interrupts */
-	for (i = 0; i < LEGACY_IRQ_NUM; i++) {
+	for (i = 0; i < PCI_NUM_INTX; i++) {
 		if (!(status & PCIE_ISR0_INTX_ASSERT(i)))
 			continue;