diff --git a/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h
index d3b29bb..e0e1394 100644
--- a/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h
+++ b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h
@@ -294,9 +294,6 @@
             (brightness < 0.0f && brightness != -1.0f)) {
             return Error::BAD_PARAMETER;
         }
-        if (!mDispatch.setDisplayBrightness) {
-            return Error::UNSUPPORTED;
-        }
         int32_t error = mDispatch.setDisplayBrightness(mDevice, display, brightness);
         return static_cast<Error>(error);
     }
@@ -307,6 +304,13 @@
             return false;
         }
 
+        if (!BaseType2_1::initDispatch(HWC2_FUNCTION_GET_DISPLAY_CAPABILITIES,
+                                       &mDispatch.getDisplayCapabilities) ||
+            !BaseType2_1::initDispatch(HWC2_FUNCTION_SET_DISPLAY_BRIGHTNESS,
+                                       &mDispatch.setDisplayBrightness)) {
+            return false;
+        }
+
         this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAY_IDENTIFICATION_DATA,
                                    &mDispatch.getDisplayIdentificationData);
         this->initOptionalDispatch(HWC2_FUNCTION_SET_LAYER_COLOR_TRANSFORM,
@@ -317,14 +321,10 @@
                                    &mDispatch.setDisplayedContentSamplingEnabled);
         this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAYED_CONTENT_SAMPLE,
                                    &mDispatch.getDisplayedContentSample);
-        this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAY_CAPABILITIES,
-                                   &mDispatch.getDisplayCapabilities);
         this->initOptionalDispatch(HWC2_FUNCTION_SET_LAYER_PER_FRAME_METADATA_BLOBS,
                                    &mDispatch.setLayerPerFrameMetadataBlobs);
         this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAY_BRIGHTNESS_SUPPORT,
                                    &mDispatch.getDisplayBrightnessSupport);
-        this->initOptionalDispatch(HWC2_FUNCTION_SET_DISPLAY_BRIGHTNESS,
-                                   &mDispatch.setDisplayBrightness);
         return true;
     }
 
diff --git a/graphics/composer/2.4/utils/passthrough/include/composer-passthrough/2.4/HwcHal.h b/graphics/composer/2.4/utils/passthrough/include/composer-passthrough/2.4/HwcHal.h
index a34572d..9e7684d 100644
--- a/graphics/composer/2.4/utils/passthrough/include/composer-passthrough/2.4/HwcHal.h
+++ b/graphics/composer/2.4/utils/passthrough/include/composer-passthrough/2.4/HwcHal.h
@@ -220,12 +220,15 @@
             return false;
         }
 
+        if (!BaseType2_1::initDispatch(HWC2_FUNCTION_GET_DISPLAY_VSYNC_PERIOD,
+                                       &mDispatch.getDisplayVsyncPeriod) ||
+            !BaseType2_1::initDispatch(HWC2_FUNCTION_SET_ACTIVE_CONFIG_WITH_CONSTRAINTS,
+                                       &mDispatch.setActiveConfigWithConstraints)) {
+            return false;
+        }
+
         this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAY_CONNECTION_TYPE,
                                    &mDispatch.getDisplayConnectionType);
-        this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAY_VSYNC_PERIOD,
-                                   &mDispatch.getDisplayVsyncPeriod);
-        this->initOptionalDispatch(HWC2_FUNCTION_SET_ACTIVE_CONFIG_WITH_CONSTRAINTS,
-                                   &mDispatch.setActiveConfigWithConstraints);
         this->initOptionalDispatch(HWC2_FUNCTION_SET_AUTO_LOW_LATENCY_MODE,
                                    &mDispatch.setAutoLowLatencyMode);
         this->initOptionalDispatch(HWC2_FUNCTION_GET_SUPPORTED_CONTENT_TYPES,