Revert brownout detection logic

This should be handled on the modem side via existing mechanisms. Resolves: LE-11377 Change-Id: Ic95fb9f59f242e6f112700dd3a23af42403b7ff8
legatoproject · Oct 16, 2018 · a51315a · a51315a
1 parent d8da8c5
commit a51315a
Showing 1 changed file with 0 additions and 50 deletions.
diff --git a/framework/daemons/linux/start/start.c b/framework/daemons/linux/start/start.c
@@ -138,13 +138,6 @@ static const char GoldenAppsPath[] = "/mnt/legato/apps/";
 static const char GoldenModemService[] = "/mnt/legato/system/apps/modemService";
 static const char ModemPAPath[] = "/read-only/lib/libComponent_le_pa.so";
 
-//--------------------------------------------------------------------------------------------------
-/**
- * Brownout voltage limit (in mV)
- */
-//--------------------------------------------------------------------------------------------------
-static const uint32_t BrownoutVoltageLimit = 3525;
-
 //--------------------------------------------------------------------------------------------------
 /**
  * Pointer to modem PA (assuming modem PA exists).
@@ -268,43 +261,6 @@ static void LoadModemPA
 }
 
 
-//--------------------------------------------------------------------------------------------------
-/**
- * Check if system is in brownout
- */
-//--------------------------------------------------------------------------------------------------
-static bool IsBrownout
-(
-    void
-)
-{
-    static int (*pa_ips_GetInputVoltage)(uint32_t*) = NULL;
-    uint32_t inputVoltage;
-
-    if (!ModemPASoPtr)
-    {
-        // No way to get voltage; assume not a brownout
-        return false;
-    }
-
-    pa_ips_GetInputVoltage = dlsym(ModemPASoPtr, "pa_ips_GetInputVoltage");
-    if (!pa_ips_GetInputVoltage)
-    {
-        // No way to get voltage; assume not a brownout
-        LE_WARN("Could not get function pa_ips_GetInputVoltage");
-        LE_INFO("%s", dlerror());
-        return false;
-    }
-
-    if (pa_ips_GetInputVoltage(&inputVoltage))
-    {
-        return false;
-    }
-    LE_INFO("Checking for brownout %d", inputVoltage);
-
-    return inputVoltage < BrownoutVoltageLimit;
-}
-
 //--------------------------------------------------------------------------------------------------
 /**
  * Check if system reboot is due to hardware reason (under voltage, over temperature)
@@ -2198,12 +2154,6 @@ int main
 
     LoadModemPA();
 
-    // Wait until not in a brownout condition.
-    while (IsBrownout())
-    {
-        sleep(1);
-    }
-
     while(1)
     {
         if (!isReadOnly)