static int mp_register_gsi(struct device *dev, u32 gsi, int trigger,
int polarity)
{
int irq, node;
if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
return gsi;
trigger = trigger == ACPI_EDGE_SENSITIVE ? 0 : 1;
polarity = polarity == ACPI_ACTIVE_HIGH ? 0 : 1;
node = dev ? dev_to_node(dev) : NUMA_NO_NODE;
if (mp_set_gsi_attr(gsi, trigger, polarity, node)) {
pr_warn("Failed to set pin attr for GSI%d\n", gsi);
return -1;
}
irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC);
if (irq < 0)
return irq;
/* Don't set up the ACPI SCI because it's already set up */
if (enable_update_mptable && acpi_gbl_FADT.sci_interrupt != gsi)
mp_config_acpi_gsi(dev, gsi, trigger, polarity);
return irq;
}
static void mp_unregister_gsi(u32 gsi)
{
int irq;
if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
return;
irq = mp_map_gsi_to_irq(gsi, 0);
if (irq > 0)
mp_unmap_irq(irq);
}
static int tangier_probe(struct platform_device *pdev)
{
int gsi;
struct irq_alloc_info info;
struct intel_mid_wdt_pdata *pdata = pdev->dev.platform_data;
if (!pdata)
return -EINVAL;
/* IOAPIC builds identity mapping between GSI and IRQ on MID */
gsi = pdata->irq;
ioapic_set_alloc_attr(&info, cpu_to_node(0), 1, 0);
if (mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info) <= 0) {
dev_warn(&pdev->dev, "cannot find interrupt %d in ioapic\n",
gsi);
return -EINVAL;
}
return 0;
}