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-rw-r--r--src/ec/kontron/it8516e/ec.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/ec/kontron/it8516e/ec.c b/src/ec/kontron/it8516e/ec.c
index 721412199d..925b7ea524 100644
--- a/src/ec/kontron/it8516e/ec.c
+++ b/src/ec/kontron/it8516e/ec.c
@@ -170,6 +170,8 @@ static void it8516e_set_fan_from_options(const config_t *const config,
"Setting it8516e fan%d "
"control to %d%% PWM.\n",
fan_idx + 1, fan_target);
+ if (fan_target > 100) /* Constrain to 100% */
+ fan_target = 100;
it8516e_set_fan_pwm(fan_idx, (fan_target * 255) / 100);
break;
case IT8516E_MODE_SPEED:
@@ -183,6 +185,8 @@ static void it8516e_set_fan_from_options(const config_t *const config,
printk(BIOS_DEBUG,
"Setting it8516e fan%d control to %d C.\n",
fan_idx + 1, fan_target);
+ if (fan_target > 1024) /* Constrain to 1K */
+ fan_target = 1024;
it8516e_set_fan_temperature(fan_idx, fan_target * 64);
fanX_min[3] = '1' + fan_idx;