mfd: MAX8998/LP3974 hibernation support

This patch makes the driver to save and restore register values
for hibernation.

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, 2 insertions, 0 deletions

diff --git a/include/linux/mfd/max8998-private.h b/include/linux/mfd/max8998-private.h
index 7363dea6bbc..effa5d3b96a 100644
--- a/include/linux/mfd/max8998-private.h
+++ b/include/linux/mfd/max8998-private.h
@@ -159,10 +159,12 @@ struct max8998_dev {
         u8 irq_masks_cur[MAX8998_NUM_IRQ_REGS];
         u8 irq_masks_cache[MAX8998_NUM_IRQ_REGS];
         int type;
+        bool wakeup;
 };
 
 int max8998_irq_init(struct max8998_dev *max8998);
 void max8998_irq_exit(struct max8998_dev *max8998);
+int max8998_irq_resume(struct max8998_dev *max8998);
 
 extern int max8998_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest);
 extern int max8998_bulk_read(struct i2c_client *i2c, u8 reg, int count,