mfd: Add MAX77693 irq handler

This patch supports IRQ handling for MAX77693.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
index c852515e68c8..e9e4278722f3 100644
--- a/drivers/mfd/max77693.c
+++ b/drivers/mfd/max77693.c
@@ -154,6 +154,10 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
         max77693->haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC);
         i2c_set_clientdata(max77693->haptic, max77693);
 
+        ret = max77693_irq_init(max77693);
+        if (ret < 0)
+                goto err_mfd;
+
         pm_runtime_set_active(max77693->dev);
 
         ret = mfd_add_devices(max77693->dev, -1, max77693_devs,
@@ -161,6 +165,8 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
         if (ret < 0)
                 goto err_mfd;
 
+        device_init_wakeup(max77693->dev, pdata->wakeup);
+
         return ret;
 
 err_mfd:
@@ -189,10 +195,36 @@ static const struct i2c_device_id max77693_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, max77693_i2c_id);
 
+static int max77693_suspend(struct device *dev)
+{
+        struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+        struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
+
+        if (device_may_wakeup(dev))
+                irq_set_irq_wake(max77693->irq, 1);
+        return 0;
+}
+
+static int max77693_resume(struct device *dev)
+{
+        struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+        struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
+
+        if (device_may_wakeup(dev))
+                irq_set_irq_wake(max77693->irq, 0);
+        return max77693_irq_resume(max77693);
+}
+
+const struct dev_pm_ops max77693_pm = {
+        .suspend = max77693_suspend,
+        .resume = max77693_resume,
+};
+
 static struct i2c_driver max77693_i2c_driver = {
         .driver = {
                    .name = "max77693",
                    .owner = THIS_MODULE,
+                   .pm = &max77693_pm,
         },
         .probe = max77693_i2c_probe,
         .remove = max77693_i2c_remove,