PCI: mediatek: Use PCI_NUM_INTX

Switch from using custom INTX_NUM macro to the generic PCI_NUM_INTX definition
for the number of INTx interrupts.

Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
[bhelgaas: use subject/changelog from similar patches]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/host/pcie-mediatek.c b/drivers/pci/host/pcie-mediatek.c
index 0581359..db93efd 100644 (file)
--- a/drivers/pci/host/pcie-mediatek.c
+++ b/drivers/pci/host/pcie-mediatek.c
@@ -77,7 +77,6 @@
 #define PCIE_INT_MASK          0x420
 #define INTX_MASK              GENMASK(19, 16)
 #define INTX_SHIFT             16
-#define INTX_NUM               4
 #define PCIE_INT_STATUS                0x424
 #define MSI_STATUS             BIT(23)
 #define PCIE_IMSI_STATUS       0x42c
@@ -576,7 +575,7 @@ static int mtk_pcie_init_irq_domain(struct mtk_pcie_port *port,
                return -ENODEV;
        }
 
-       port->irq_domain = irq_domain_add_linear(pcie_intc_node, INTX_NUM,
+       port->irq_domain = irq_domain_add_linear(pcie_intc_node, PCI_NUM_INTX,
                                                 &intx_domain_ops, port);
        if (!port->irq_domain) {
                dev_err(dev, "failed to get INTx IRQ domain\n");
@@ -605,7 +604,7 @@ static irqreturn_t mtk_pcie_intr_handler(int irq, void *data)
        u32 bit = INTX_SHIFT;
 
        while ((status = readl(port->base + PCIE_INT_STATUS)) & INTX_MASK) {
-               for_each_set_bit_from(bit, &status, INTX_NUM + INTX_SHIFT) {
+               for_each_set_bit_from(bit, &status, PCI_NUM_INTX + INTX_SHIFT) {
                        /* Clear the INTx */
                        writel(1 << bit, port->base + PCIE_INT_STATUS);
                        virq = irq_find_mapping(port->irq_domain,