As OF-based initialization is going to be added to the driver, guard the
ACPI-based initialization code with CONFIG_ACPI.

Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
---
 drivers/irqchip/irq-loongson-pch-lpc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/irqchip/irq-loongson-pch-lpc.c b/drivers/irqchip/irq-loongson-pch-lpc.c
index 4507000b991a6..96489e031d34e 100644
--- a/drivers/irqchip/irq-loongson-pch-lpc.c
+++ b/drivers/irqchip/irq-loongson-pch-lpc.c
@@ -225,6 +225,7 @@ static int __init pch_lpc_init(phys_addr_t addr, unsigned long size,
 	return -ENOMEM;
 }
 
+#ifdef CONFIG_ACPI
 int __init pch_lpc_acpi_init(struct irq_domain *parent,
 					struct acpi_madt_lpc_pic *acpi_pchlpc)
 {
@@ -255,3 +256,4 @@ int __init pch_lpc_acpi_init(struct irq_domain *parent,
 
 	return 0;
 }
+#endif /* CONFIG_ACPI */
-- 
2.52.0