msm8996-common: Remove power-off alarm stuff from init extension

 * CAF's init.qcom.early_boot.sh checks /persist/alarm/powerOffAlarmSet
   before setting ro.alarm_boot, but on Oreo nothing writes to that
   file, thus code is never executed and the prop is never set.
 * Without ro.alarm_boot=true, the system will boot normally instead of
   boot to min framework even on rtc, and alarm will ring after boot
   completed.

Change-Id: Ie4d30358314337c229a66a16195f675198ef7d52
Signed-off-by: Davide Garberi <dade.garberi@gmail.com>

1 files changed, 3 insertions, 43 deletions

diff --git a/init/init_msm8996.cpp b/init/init_msm8996.cpp
index 61d3b31..08c4345 100644
--- a/init/init_msm8996.cpp
+++ b/init/init_msm8996.cpp
@@ -1,6 +1,7 @@
 /*
-   Copyright (C) 2013-2016, The CyanogenMod Project
-   Copyright (C) 2017, The LineageOS Project
+   Copyright (c) 2015, The Linux Foundation. All rights reserved.
+   Copyright (C) 2016 The CyanogenMod Project.
+   Copyright (C) 2017-2018 The LineageOS Project.
 
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are
@@ -28,59 +29,19 @@
    IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <stdio.h>
-#include <stdlib.h>
 #include <sys/sysinfo.h>
 
-#include <android-base/file.h>
 #include <android-base/properties.h>
-#include <android-base/strings.h>
 
 #include "property_service.h"
 #include "vendor_init.h"
 
 using android::base::GetProperty;
-using android::base::ReadFileToString;
-using android::base::Trim;
 using android::init::property_set;
 
 char const *heapminfree;
 char const *heapmaxfree;
 
-static void init_alarm_boot_properties()
-{
-	char const *boot_reason_file = "/proc/sys/kernel/boot_reason";
-	char const *power_off_alarm_file = "/persist/alarm/powerOffAlarmSet";
-	std::string boot_reason;
-	std::string power_off_alarm;
-	std::string reboot_reason = GetProperty("ro.boot.alarmboot", "");
-
-	if (ReadFileToString(boot_reason_file, &boot_reason)
-			&& ReadFileToString(power_off_alarm_file, &power_off_alarm)) {
-		/*
-		* Setup ro.alarm_boot value to true when it is RTC triggered boot up
-		* For existing PMIC chips, the following mapping applies
-		* for the value of boot_reason:
-		*
-		* 0 -> unknown
-		* 1 -> hard reset
-		* 2 -> sudden momentary power loss (SMPL)
-		* 3 -> real time clock (RTC)
-		* 4 -> DC charger inserted
-		* 5 -> USB charger inserted
-		* 6 -> PON1 pin toggled (for secondary PMICs)
-		* 7 -> CBLPWR_N pin toggled (for external power supply)
-		* 8 -> KPDPWR_N pin toggled (power key pressed)
-		*/
-		if ((Trim(boot_reason) == "3" || reboot_reason == "true")
-				&& Trim(power_off_alarm) == "1") {
-			property_set("ro.alarm_boot", "true");
-		} else {
-			property_set("ro.alarm_boot", "false");
-		}
-	}
-}
-
 void check_device()
 {
 	struct sysinfo sys;
@@ -115,6 +76,5 @@ void vendor_load_properties()
 	property_set("dalvik.vm.heapminfree", heapminfree);
 	property_set("dalvik.vm.heapmaxfree", heapmaxfree);
 
-    init_alarm_boot_properties();
 }