diff --git a/interfaces/mtkpower/1.0/IMtkPower.hal b/interfaces/mtkpower/1.0/IMtkPower.hal
index b392e05..caa5980 100644
--- a/interfaces/mtkpower/1.0/IMtkPower.hal
+++ b/interfaces/mtkpower/1.0/IMtkPower.hal
@@ -1,10 +1,10 @@
 package vendor.mediatek.hardware.mtkpower@1.0;
 
 interface IMtkPower {
-    oneway mtkCusPowerHint(int32_t hint, int32_t param_2);
-    oneway mtkPowerHint(int32_t hint, int32_t param_2);
-    oneway notifyAppState(string param_1, string param_2, int32_t param_3, int32_t param_4, int32_t param_5);
-    querySysInfo(int32_t param_1, int32_t param_2) generates (int32_t ret);
-    setSysInfo(int32_t param1, string param_2) generates (int32_t ret);
-    setSysInfoAsync(int32_t param1, string param_2) generates (int32_t ret);
+    oneway mtkCusPowerHint(int32_t hint, int32_t data);
+    oneway mtkPowerHint(int32_t hint, int32_t data);
+    oneway notifyAppState(string pack, string act, int32_t pid, int32_t state, int32_t uid);
+    querySysInfo(int32_t cmd, int32_t param) generates (int32_t ret);
+    setSysInfo(int32_t type, string data) generates (int32_t ret);
+    setSysInfoAsync(int32_t type, string data) generates (int32_t ret);
 };
diff --git a/interfaces/mtkpower/1.1/IMtkPerf.hal b/interfaces/mtkpower/1.1/IMtkPerf.hal
index 8d4ac7f..0b82391 100644
--- a/interfaces/mtkpower/1.1/IMtkPerf.hal
+++ b/interfaces/mtkpower/1.1/IMtkPerf.hal
@@ -3,5 +3,5 @@ package vendor.mediatek.hardware.mtkpower@1.1;
 import @1.0::IMtkPerf;
 
 interface IMtkPerf extends @1.0::IMtkPerf {
-    perfCusLockHint(int32_t pl_handle, uint32_t duration) generates (int32_t ret);
+    perfCusLockHint(int32_t hint, uint32_t duration) generates (int32_t ret);
 };
\ No newline at end of file
diff --git a/interfaces/mtkpower/1.1/IMtkPowerCallback.hal b/interfaces/mtkpower/1.1/IMtkPowerCallback.hal
index e4d4dbc..6f3c993 100644
--- a/interfaces/mtkpower/1.1/IMtkPowerCallback.hal
+++ b/interfaces/mtkpower/1.1/IMtkPowerCallback.hal
@@ -2,5 +2,5 @@ package vendor.mediatek.hardware.mtkpower@1.1;
 
 interface IMtkPowerCallback {
     oneway mtkPowerHint(int32_t hint, int32_t duration);
-    oneway notifyAppState(string param_1, string param_2, int32_t param_3, int32_t param_4, int32_t param_5);
+    oneway notifyAppState(string pack, string act, int32_t pid, int32_t state, int32_t uid);
 };
\ No newline at end of file
diff --git a/interfaces/mtkpower/1.2/IMtkPerf.hal b/interfaces/mtkpower/1.2/IMtkPerf.hal
index 93c6046..1e607a7 100644
--- a/interfaces/mtkpower/1.2/IMtkPerf.hal
+++ b/interfaces/mtkpower/1.2/IMtkPerf.hal
@@ -3,5 +3,5 @@ package vendor.mediatek.hardware.mtkpower@1.2;
 import @1.1::IMtkPerf;
 
 interface IMtkPerf extends @1.1::IMtkPerf {
-    perfLockReleaseSync(int32_t param_1, int32_t param_2) generates (int32_t ret);
+    perfLockReleaseSync(int32_t pl_handle, int32_t reserved) generates (int32_t ret);
 };
\ No newline at end of file
diff --git a/interfaces/mtkpower/1.2/IMtkPower.hal b/interfaces/mtkpower/1.2/IMtkPower.hal
index 6a5f45a..1b6ea73 100644
--- a/interfaces/mtkpower/1.2/IMtkPower.hal
+++ b/interfaces/mtkpower/1.2/IMtkPower.hal
@@ -4,5 +4,5 @@ import @1.1::IMtkPower;
 import IMtkPowerCallback;
 
 interface IMtkPower extends @1.1::IMtkPower {
-    setMtkScnUpdateCallback(int32_t clientId, IMtkPowerCallback callback) generates (int32_t ret);
+    setMtkScnUpdateCallback(int32_t hint, IMtkPowerCallback callback) generates (int32_t ret);
 };
\ No newline at end of file
diff --git a/interfaces/mtkpower/1.2/IMtkPowerCallback.hal b/interfaces/mtkpower/1.2/IMtkPowerCallback.hal
index e795466..14910cd 100644
--- a/interfaces/mtkpower/1.2/IMtkPowerCallback.hal
+++ b/interfaces/mtkpower/1.2/IMtkPowerCallback.hal
@@ -3,5 +3,5 @@ package vendor.mediatek.hardware.mtkpower@1.2;
 import @1.1::IMtkPowerCallback;
 
 interface IMtkPowerCallback extends @1.1::IMtkPowerCallback {
-    oneway notifyScnUpdate(int32_t param_1, int32_t param_2);
+    oneway notifyScnUpdate(int32_t hint, int32_t data);
 };
\ No newline at end of file