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authorJett.Zhou <jtzhou@marvell.com>2012-02-27 15:44:20 +0100
committerSamuel Ortiz <sameo@linux.intel.com>2012-03-06 18:46:49 +0100
commit2853378b6eafd8b9e2f0e39ab599c93ce518b04d (patch)
tree2e92700fe3714e3b919cbd920709fcbc4fb8aed8 /drivers/mfd
parentb8b8d7932bb83300d0ae6553e320ab1aecb37990 (diff)
downloadop-kernel-dev-2853378b6eafd8b9e2f0e39ab599c93ce518b04d.zip
op-kernel-dev-2853378b6eafd8b9e2f0e39ab599c93ce518b04d.tar.gz
mfd: Add ability to wake the system for 88pm860x
For 88pm860x pmic, it can wake the system from low power mode by irq, its sub-devs like RTC and onkey can be enabled for this usage. Signed-off-by: Jett.Zhou <jtzhou@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/88pm860x-i2c.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/mfd/88pm860x-i2c.c b/drivers/mfd/88pm860x-i2c.c
index f93dd95..b2cfdc4 100644
--- a/drivers/mfd/88pm860x-i2c.c
+++ b/drivers/mfd/88pm860x-i2c.c
@@ -334,10 +334,35 @@ static int __devexit pm860x_remove(struct i2c_client *client)
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int pm860x_suspend(struct device *dev)
+{
+ struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+ struct pm860x_chip *chip = i2c_get_clientdata(client);
+
+ if (device_may_wakeup(dev) && chip->wakeup_flag)
+ enable_irq_wake(chip->core_irq);
+ return 0;
+}
+
+static int pm860x_resume(struct device *dev)
+{
+ struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+ struct pm860x_chip *chip = i2c_get_clientdata(client);
+
+ if (device_may_wakeup(dev) && chip->wakeup_flag)
+ disable_irq_wake(chip->core_irq);
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume);
+
static struct i2c_driver pm860x_driver = {
.driver = {
.name = "88PM860x",
.owner = THIS_MODULE,
+ .pm = &pm860x_pm_ops,
},
.probe = pm860x_probe,
.remove = __devexit_p(pm860x_remove),
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