From 6f6d1f984f7c28e5205008f2b050e75a128eb405 Mon Sep 17 00:00:00 2001
From: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Date: Tue, 27 Mar 2012 02:23:40 +0530
Subject: [PATCH] --- yaml --- r: 309671 b: refs/heads/master c:
 48bc177441d68c0ba70631beb544c3d695328d56 h: refs/heads/master i:   309669:
 faa513fa6849f40c6fbfcfbe9e3cd5da009ddbeb   309667:
 c9413b9b5b1779dcd63849711d60099eae5efdda   309663:
 a9e9a2677d95bbcafe828494b8e1eeb92f2c0293 v: v3

---
 [refs]                                 |  2 +-
 trunk/drivers/power/max17042_battery.c | 41 ++++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 543a64476694..f79a8da81485 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bb28da90f4f973529f81be01547ebde7bf270042
+refs/heads/master: 48bc177441d68c0ba70631beb544c3d695328d56
diff --git a/trunk/drivers/power/max17042_battery.c b/trunk/drivers/power/max17042_battery.c
index 93fd13c9be68..07dee974a70e 100644
--- a/trunk/drivers/power/max17042_battery.c
+++ b/trunk/drivers/power/max17042_battery.c
@@ -28,6 +28,7 @@
 #include <linux/i2c.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
+#include <linux/pm.h>
 #include <linux/mod_devicetable.h>
 #include <linux/power_supply.h>
 #include <linux/power/max17042_battery.h>
@@ -721,6 +722,40 @@ static int __devexit max17042_remove(struct i2c_client *client)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int max17042_suspend(struct device *dev)
+{
+	struct max17042_chip *chip = dev_get_drvdata(dev);
+
+	/* disable the irq and enable irq_wake
+	 * capability to the interrupt line.
+	 */
+	if (chip->client->irq) {
+		disable_irq(chip->client->irq);
+		enable_irq_wake(chip->client->irq);
+	}
+
+	return 0;
+}
+
+static int max17042_resume(struct device *dev)
+{
+	struct max17042_chip *chip = dev_get_drvdata(dev);
+
+	if (chip->client->irq) {
+		disable_irq_wake(chip->client->irq);
+		enable_irq(chip->client->irq);
+		/* re-program the SOC thresholds to 1% change */
+		max17042_set_soc_threshold(chip, 1);
+	}
+
+	return 0;
+}
+#else
+#define max17042_suspend NULL
+#define max17042_resume NULL
+#endif
+
 #ifdef CONFIG_OF
 static const struct of_device_id max17042_dt_match[] = {
 	{ .compatible = "maxim,max17042" },
@@ -735,10 +770,16 @@ static const struct i2c_device_id max17042_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, max17042_id);
 
+static const struct dev_pm_ops max17042_pm_ops = {
+	.suspend		= max17042_suspend,
+	.resume			= max17042_resume,
+};
+
 static struct i2c_driver max17042_i2c_driver = {
 	.driver	= {
 		.name	= "max17042",
 		.of_match_table = of_match_ptr(max17042_dt_match),
+		.pm	= &max17042_pm_ops,
 	},
 	.probe		= max17042_probe,
 	.remove		= __devexit_p(max17042_remove),