From 562f63234fa90e4ea2c79c06f77eaaa6c3b427fd Mon Sep 17 00:00:00 2001
From: Rituj Beniwal <ritujbeniwal@gmail.com>
Date: Wed, 26 May 2021 17:31:31 +0530
Subject: [PATCH] sm8150-common: Apply ALS correction to the RAW sensor value

* Probably a derp here https://github.com/LineageOS/android_device_oneplus_sm8150-common/commit/07c6e1a71fa7ef5ef58561c86097ef5e7ea10934

Signed-off-by: Rituj Beniwal <ritujbeniwal@gmail.com>
---
 sensors/AlsCorrection.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sensors/AlsCorrection.cpp b/sensors/AlsCorrection.cpp
index 59094e43..2946a069 100644
--- a/sensors/AlsCorrection.cpp
+++ b/sensors/AlsCorrection.cpp
@@ -73,11 +73,13 @@ void AlsCorrection::correct(float& light) {
         correction = correction * (((float) screen_brightness) / ((float) max_brightness));
         correction += als_bias;
     }
-    ALOGV("Final correction: %f", correction);
     // Sensor is not accurate for low values
-    if (light < correction) {
+    if (light - correction >= 0) {
+        light -= correction;
+    } else {
         light = correction;
     }
+    ALOGV("Corrected reading: %f", light);
 }
 
 }  // namespace implementation