diff --git a/target/linux/ifxmips/files/arch/mips/include/asm/mach-ifxmips/gpio.h b/target/linux/ifxmips/files/arch/mips/include/asm/mach-ifxmips/gpio.h
index 6f05e38ea..4176bfd80 100644
--- a/target/linux/ifxmips/files/arch/mips/include/asm/mach-ifxmips/gpio.h
+++ b/target/linux/ifxmips/files/arch/mips/include/asm/mach-ifxmips/gpio.h
@@ -99,7 +99,7 @@ static inline void gpio_set_value_cansleep(unsigned gpio, int value)
 
 static inline int gpio_is_valid(int number)
 {
-	return ((unsigned)number) < 16;
+	return ((unsigned)number) < 32;
 }
 
 #endif