diff --git a/drivers/devfreq/governor_bw_hwmon.c b/drivers/devfreq/governor_bw_hwmon.c
index fd95f4f145a8..f78118e32e5b 100644
--- a/drivers/devfreq/governor_bw_hwmon.c
+++ b/drivers/devfreq/governor_bw_hwmon.c
@@ -754,7 +754,7 @@ show_attr(decay_rate);
 store_attr(decay_rate, 0U, 100U);
 static DEVICE_ATTR_RW(decay_rate);
 show_attr(io_percent);
-store_attr(io_percent, 1U, 100U);
+store_attr(io_percent, 1U, 400U);
 static DEVICE_ATTR_RW(io_percent);
 show_attr(bw_step);
 store_attr(bw_step, 50U, 1000U);