diff options
Diffstat (limited to 'drivers/acpi/pci_irq.c')
| -rw-r--r-- | drivers/acpi/pci_irq.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index 08e15774fb9f..ad81aa03fe2f 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -22,6 +22,7 @@ #include <linux/acpi.h> #include <linux/slab.h> #include <linux/interrupt.h> +#include <linux/string_choices.h> struct acpi_prt_entry { struct acpi_pci_id id; @@ -288,7 +289,7 @@ static int acpi_reroute_boot_interrupt(struct pci_dev *dev, } #endif /* CONFIG_X86_IO_APIC */ -static struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin) +struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin) { struct acpi_prt_entry *entry = NULL; struct pci_dev *bridge; @@ -387,13 +388,15 @@ int acpi_pci_irq_enable(struct pci_dev *dev) u8 pin; int triggering = ACPI_LEVEL_SENSITIVE; /* - * On ARM systems with the GIC interrupt model, level interrupts + * On ARM systems with the GIC interrupt model, or LoongArch + * systems with the LPIC interrupt model, level interrupts * are always polarity high by specification; PCI legacy * IRQs lines are inverted before reaching the interrupt * controller and must therefore be considered active high * as default. */ - int polarity = acpi_irq_model == ACPI_IRQ_MODEL_GIC ? + int polarity = acpi_irq_model == ACPI_IRQ_MODEL_GIC || + acpi_irq_model == ACPI_IRQ_MODEL_LPIC ? ACPI_ACTIVE_HIGH : ACPI_ACTIVE_LOW; char *link = NULL; char link_desc[16]; @@ -466,7 +469,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev) dev_dbg(&dev->dev, "PCI INT %c%s -> GSI %u (%s, %s) -> IRQ %d\n", pin_name(pin), link_desc, gsi, (triggering == ACPI_LEVEL_SENSITIVE) ? "level" : "edge", - (polarity == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq); + str_low_high(polarity == ACPI_ACTIVE_LOW), dev->irq); kfree(entry); return 0; |