diff --git a/device/accton/x86_64-accton_as4630_54pe-r0/pddf/pddf-device.json b/device/accton/x86_64-accton_as4630_54pe-r0/pddf/pddf-device.json
index b48506f905..34013b2a84 100644
--- a/device/accton/x86_64-accton_as4630_54pe-r0/pddf/pddf-device.json
+++ b/device/accton/x86_64-accton_as4630_54pe-r0/pddf/pddf-device.json
@@ -33,7 +33,7 @@
         "std_kos":
         [
             "i2c_dev",
-            "i2c_mux_pca954x force_deselect_on_exit=1",
+            "i2c_mux_pca954x",
             "optoe"
         ],
         "description":"kernel modules are loaded while moving to pdf mode, but they should not be unloaded while moving to nonpddf mode.",
@@ -105,7 +105,7 @@
         "i2c":
         { 
             "topo_info": { "parent_bus":"0x1", "dev_addr":"0x77", "dev_type":"pca9548"},
-            "dev_attr": { "virt_bus":"0x2"},
+            "dev_attr": { "virt_bus":"0x2", "idle_state":"-2"},
             "channel":
             [
                 { "chn":"0", "dev":"MUX2" },
@@ -122,7 +122,7 @@
         "i2c":
         {
             "topo_info": { "parent_bus":"0x2", "dev_addr":"0x71", "dev_type":"pca9548"},
-            "dev_attr": { "virt_bus":"0xa"},
+            "dev_attr": { "virt_bus":"0xa", "idle_state":"-2"},
             "channel":
             [
                 { "chn":"0", "dev":"PSU1" },
@@ -161,7 +161,7 @@
         "i2c":
         {
             "topo_info": { "parent_bus":"0x3", "dev_addr":"0x70", "dev_type":"pca9548"},
-            "dev_attr": { "virt_bus":"0x12"},
+            "dev_attr": { "virt_bus":"0x12", "idle_state":"-2"},
             "channel":
             [
                 { "chn":"0", "dev":"PORT49" },
diff --git a/device/accton/x86_64-accton_as7712_32x-r0/installer.conf b/device/accton/x86_64-accton_as7712_32x-r0/installer.conf
index 14404194ef..d0ed16575e 100644
--- a/device/accton/x86_64-accton_as7712_32x-r0/installer.conf
+++ b/device/accton/x86_64-accton_as7712_32x-r0/installer.conf
@@ -1,3 +1,4 @@
 CONSOLE_PORT=0x2f8
 CONSOLE_DEV=1
 CONSOLE_SPEED=115200
+ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="modprobe.blacklist=i2c-ismt,i2c_ismt,i2c-i801,i2c_i801"
diff --git a/device/accton/x86_64-accton_as7712_32x-r0/pddf/pddf-device.json b/device/accton/x86_64-accton_as7712_32x-r0/pddf/pddf-device.json
index d84e6fde2b..439a52ca9a 100644
--- a/device/accton/x86_64-accton_as7712_32x-r0/pddf/pddf-device.json
+++ b/device/accton/x86_64-accton_as7712_32x-r0/pddf/pddf-device.json
@@ -34,7 +34,7 @@
             "i2c-ismt",
             "i2c-i801",
             "i2c_dev",
-            "i2c_mux_pca954x force_deselect_on_exit=1",
+            "i2c_mux_pca954x",
             "optoe"
         ],
         "pddf_kos":
@@ -116,7 +116,7 @@
 		"i2c":
 		{ 
 			"topo_info": { "parent_bus":"0x1", "dev_addr":"0x76", "dev_type":"pca9548"},
-			"dev_attr": { "virt_bus":"0x2"},
+			"dev_attr": { "virt_bus":"0x2", "idle_state":"-2"},
 			"channel":
 			[
 				{ "chn":"0", "dev":"FAN-CTRL" },
@@ -137,7 +137,7 @@
 		"i2c":
 		{
 			"topo_info": { "parent_bus":"0x0", "dev_addr":"0x71", "dev_type":"pca9548"},
-			"dev_attr": { "virt_bus":"0xa"},
+			"dev_attr": { "virt_bus":"0xa", "idle_state":"-2"},
 			"channel":
 			[
 				{ "chn":"0", "dev":"PSU2" },
@@ -402,7 +402,7 @@
 		"i2c":
 		{
 			"topo_info": { "parent_bus":"0x0", "dev_addr":"0x72", "dev_type":"pca9548"},
-			"dev_attr": { "virt_bus":"0x12"},
+			"dev_attr": { "virt_bus":"0x12", "idle_state":"-2"},
 			"channel":
 			[
 				{ "chn":"0", "dev":"PORT9" },
@@ -423,7 +423,7 @@
 		"i2c":
 		{
 			"topo_info": { "parent_bus":"0x0", "dev_addr":"0x73", "dev_type":"pca9548"},
-			"dev_attr": { "virt_bus":"0x1a"},
+			"dev_attr": { "virt_bus":"0x1a", "idle_state":"-2"},
 			"channel":
 			[
 				{ "chn":"0", "dev":"PORT6" },
@@ -444,7 +444,7 @@
 		"i2c":
 		{
 			"topo_info": { "parent_bus":"0x0", "dev_addr":"0x74", "dev_type":"pca9548"},
-			"dev_attr": { "virt_bus":"0x22"},
+			"dev_attr": { "virt_bus":"0x22", "idle_state":"-2"},
 			"channel":
 			[
 				{ "chn":"0", "dev":"PORT17" },
@@ -465,7 +465,7 @@
 		"i2c":
 		{
 			"topo_info": { "parent_bus":"0x0", "dev_addr":"0x75", "dev_type":"pca9548"},
-			"dev_attr": { "virt_bus":"0x2a"},
+			"dev_attr": { "virt_bus":"0x2a", "idle_state":"-2"},
 			"channel":
 			[
 				{ "chn":"0", "dev":"PORT29" },