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-rw-r--r--arch/loongarch/kernel/setup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
index 839b23edee87..bfc6f274e6e2 100644
--- a/arch/loongarch/kernel/setup.c
+++ b/arch/loongarch/kernel/setup.c
@@ -502,6 +502,8 @@ static __init int arch_reserve_pio_range(void)
{
struct device_node *np;
+ acpi_add_early_pio();
+
for_each_node_by_name(np, "isa") {
struct of_range range;
struct of_range_parser parser;