diff --git a/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh b/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh
index eea5070..5c100eb 100644
--- a/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh
+++ b/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh
@@ -3,7 +3,46 @@
 # Script to run on witherspoon BMC to unbind/bind the ir35221
 # driver's devices
 
-echo 4-0070 > /sys/bus/i2c/drivers/ir35221/$1
-echo 4-0071 > /sys/bus/i2c/drivers/ir35221/$1
-echo 5-0070 > /sys/bus/i2c/drivers/ir35221/$1
-echo 5-0071 > /sys/bus/i2c/drivers/ir35221/$1
+if [ "$1" = "unbind" ]
+then
+    if [ -e /sys/bus/i2c/drivers/ir35221/4-0070 ]
+    then
+        echo 4-0070 > /sys/bus/i2c/drivers/ir35221/$1
+    fi
+
+    if [ -e /sys/bus/i2c/drivers/ir35221/4-0071 ]
+    then
+        echo 4-0071 > /sys/bus/i2c/drivers/ir35221/$1
+    fi
+
+    if [ -e /sys/bus/i2c/drivers/ir35221/5-0070 ]
+    then
+        echo 5-0070 > /sys/bus/i2c/drivers/ir35221/$1
+    fi
+
+    if [ -e /sys/bus/i2c/drivers/ir35221/5-0071 ]
+    then
+        echo 5-0071 > /sys/bus/i2c/drivers/ir35221/$1
+    fi
+elif [ "$1" = "bind" ]
+then
+    if [ -e /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a140.i2c-bus/i2c-4/4-0070 ]
+    then
+        echo 4-0070 > /sys/bus/i2c/drivers/ir35221/$1
+    fi
+
+    if [ -e /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a140.i2c-bus/i2c-4/4-0071 ]
+    then
+        echo 4-0071 > /sys/bus/i2c/drivers/ir35221/$1
+    fi
+
+    if [ -e /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a180.i2c-bus/i2c-5/5-0070 ]
+    then
+        echo 5-0070 > /sys/bus/i2c/drivers/ir35221/$1
+    fi
+
+    if [ -e /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a180.i2c-bus/i2c-5/5-0071 ]
+    then
+        echo 5-0071 > /sys/bus/i2c/drivers/ir35221/$1
+    fi
+fi