From: Greg Meiste <w30289@motorola.com>
Date: Fri, 15 Oct 2010 19:22:00 +0000 (-0500)
Subject: power: ds2781: Reduce wakeups from suspend
X-Git-Tag: firefly_0821_release~9834^2~441
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=760ebb1dea74a6f96d30762f73b15d47814b0c33;p=firefly-linux-kernel-4.4.55.git

power: ds2781: Reduce wakeups from suspend

Increase SLOW_POLL to 20 minutes to improve current drain.  However,
if temperature is over TEMP_HOT, remain at fast poll rate.

Change-Id: I9361a98b1a57f415cacf05008444e47adca13dc8
Signed-off-by: Greg Meiste <w30289@motorola.com>
---

diff --git a/drivers/power/ds2781_battery.c b/drivers/power/ds2781_battery.c
index 3b2408c8e02a..985159ca9125 100644
--- a/drivers/power/ds2781_battery.c
+++ b/drivers/power/ds2781_battery.c
@@ -70,7 +70,7 @@ struct battery_status {
  * power, sample every SLOW_POLL seconds
  */
 #define FAST_POLL	(1 * 60)
-#define SLOW_POLL	(10 * 60)
+#define SLOW_POLL	(20 * 60)
 
 static DEFINE_MUTEX(battery_log_lock);
 static struct battery_status battery_log[BATTERY_LOG_MAX];
@@ -444,7 +444,8 @@ static int ds2781_suspend(struct device *dev)
 	struct ds2781_device_info *di = dev_get_drvdata(dev);
 
 	/* If on battery, reduce update rate until next resume. */
-	if (!di->status.charge_source) {
+	if ((!di->status.charge_source) &&
+	    (di->status.temp_C < TEMP_HOT)) {
 		ds2781_program_alarm(di, SLOW_POLL);
 		di->slow_poll = 1;
 	}