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-rw-r--r--src/soc/intel/apollolake/acpi.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/soc/intel/apollolake/acpi.c b/src/soc/intel/apollolake/acpi.c
index ee1a543728..8609c7c8e2 100644
--- a/src/soc/intel/apollolake/acpi.c
+++ b/src/soc/intel/apollolake/acpi.c
@@ -194,7 +194,7 @@ static unsigned long soc_fill_dmar(unsigned long current)
p2sb_unhide();
struct device *p2sb_dev = pcidev_path_on_root(PCH_DEVFN_P2SB);
uint16_t ibdf = pci_read_config16(p2sb_dev, PCH_P2SB_IBDF);
- uint16_t hbdf = pci_read_config16(p2sb_dev, PCH_P2SB_HBDF);
+ union p2sb_bdf hbdf = p2sb_get_hpet_bdf();
p2sb_hide();
current += acpi_create_dmar_drhd(current,
@@ -202,7 +202,7 @@ static unsigned long soc_fill_dmar(unsigned long current)
current += acpi_create_dmar_ds_ioapic(current,
2, ibdf >> 8, PCI_SLOT(ibdf), PCI_FUNC(ibdf));
current += acpi_create_dmar_ds_msi_hpet(current,
- 0, hbdf >> 8, PCI_SLOT(hbdf), PCI_FUNC(hbdf));
+ 0, hbdf.bus, hbdf.dev, hbdf.fn);
acpi_dmar_drhd_fixup(tmp, current);
}