diff --git a/arch/arm/src/rp23xx/rp23xx_pio.c b/arch/arm/src/rp23xx/rp23xx_pio.c
index c89d7904f0b06..ef04170c13d1a 100644
--- a/arch/arm/src/rp23xx/rp23xx_pio.c
+++ b/arch/arm/src/rp23xx/rp23xx_pio.c
@@ -46,8 +46,8 @@
 #define hw_claim_lock()         spin_lock_irqsave(&pio_lock)
 #define hw_claim_unlock(save)   spin_unlock_irqrestore(&pio_lock, save)
 #else
-#define hw_claim_lock()         spin_lock_irqsave(NULL)
-#define hw_claim_unlock(save)   spin_unlock_irqrestore(NULL, save)
+#define hw_claim_lock()         up_irq_save()
+#define hw_claim_unlock(save)   up_irq_restore(save)
 #endif
 
 /****************************************************************************