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drivers: pcie: add prt support for pci legacy interrupt

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add support for obtain irq number from pci irq routing table

Signed-off-by: Najumon Ba <najumon.ba@intel.com>
This commit is contained in:
Najumon Ba 2023-03-31 09:14:56 +05:30 • committed by Johan Hedberg
commit a72271f27f
1 changed files with 8 additions and 1 deletions
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9
drivers/pcie/host/pcie.c
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@ -14,6 +14,7 @@ LOG_MODULE_REGISTER(pcie, LOG_LEVEL_ERR);
#include <stdbool.h>
#include <zephyr/drivers/pcie/pcie.h>
#include <zephyr/sys/iterable_sections.h>
#include <zephyr/acpi/acpi.h>
#if CONFIG_PCIE_MSI
#include <zephyr/drivers/pcie/msi.h>
@ -285,7 +286,13 @@ unsigned int pcie_alloc_irq(pcie_bdf_t bdf)
if (irq == PCIE_CONF_INTR_IRQ_NONE ||
irq >= CONFIG_MAX_IRQ_LINES ||
arch_irq_is_used(irq)) {
irq = arch_irq_allocate();
if (IS_ENABLED(CONFIG_ACPI)) {
irq = acpi_legacy_irq_get(bdf);
} else {
irq = arch_irq_allocate();
}
if (irq == UINT_MAX) {
return PCIE_CONF_INTR_IRQ_NONE;
}