From 3c0204bb3f076f52c2a350c7e175e6baf72b57f9 Mon Sep 17 00:00:00 2001
From: Arian <arian.kulmer@web.de>
Date: Thu, 14 Mar 2024 18:49:30 +0100
Subject: [PATCH] sm8450-common: udfps: Disable HBM directly on successfull
 authentication

Change-Id: I336d4079cc41156135b5c68319c11d2ae640f548
---
 udfps/UdfpsHandler.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/udfps/UdfpsHandler.cpp b/udfps/UdfpsHandler.cpp
index 375bda0..71be4f8 100644
--- a/udfps/UdfpsHandler.cpp
+++ b/udfps/UdfpsHandler.cpp
@@ -220,8 +220,12 @@ class XiaomiSm8450UdfpsHander : public UdfpsHandler {
     void onAcquired(int32_t result, int32_t vendorCode) {
         LOG(DEBUG) << __func__ << " result: " << result << " vendorCode: " << vendorCode;
         if (result == FINGERPRINT_ACQUIRED_GOOD) {
-            // Set finger as up to disable HBM already, even if the finger is still pressed
-            setFingerDown(false);
+            // Request to disable HBM already, even if the finger is still pressed
+            disp_local_hbm_req req;
+            req.base.flag = 0;
+            req.base.disp_id = MI_DISP_PRIMARY;
+            req.local_hbm_value = LHBM_TARGET_BRIGHTNESS_OFF_FINGER_UP;
+            ioctl(disp_fd_.get(), MI_DISP_IOCTL_SET_LOCAL_HBM, &req);
 
             if (!enrolling) {
                 setFodStatus(FOD_STATUS_OFF);