diff --git a/src/mainboard/google/drallion/variants/drallion/devicetree.cb b/src/mainboard/google/drallion/variants/drallion/devicetree.cb
index 2fcf191eae..75fd3ee09b 100644
--- a/src/mainboard/google/drallion/variants/drallion/devicetree.cb
+++ b/src/mainboard/google/drallion/variants/drallion/devicetree.cb
@@ -176,20 +176,20 @@ chip soc/intel/cannonlake
 		.chipset_lockdown = CHIPSET_LOCKDOWN_COREBOOT,
 		.i2c[0] = {
 			.speed = I2C_SPEED_FAST,
-			.rise_time_ns = 52,
-			.fall_time_ns = 110,
+			.rise_time_ns = 180,
+			.fall_time_ns = 200,
 		},
 		.i2c[1] = {
 			.speed = I2C_SPEED_FAST,
-			.rise_time_ns = 52,
-			.fall_time_ns = 110,
+			.rise_time_ns = 30,
+			.fall_time_ns = 80,
 			.data_hold_time_ns = 330,
 		},
 		.i2c[4] = {
 			.early_init = 1,
 			.speed = I2C_SPEED_FAST,
-			.rise_time_ns = 36,
-			.fall_time_ns = 99,
+			.rise_time_ns = 30,
+			.fall_time_ns = 60,
 		},
 	}"