mfd: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Do the same change to avoid the pattern "irq_get_chip_data(data->irq)".

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/max8997-irq.c b/drivers/mfd/max8997-irq.c
index 684d901..0350848 100644
--- a/drivers/mfd/max8997-irq.c
+++ b/drivers/mfd/max8997-irq.c
@@ -113,14 +113,14 @@
 
 static void max8997_irq_lock(struct irq_data *data)
 {
-	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
 
 	mutex_lock(&max8997->irqlock);
 }
 
 static void max8997_irq_sync_unlock(struct irq_data *data)
 {
-	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
 	int i;
 
 	for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++) {
@@ -148,7 +148,7 @@
 
 static void max8997_irq_mask(struct irq_data *data)
 {
-	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
 	const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997,
 								data->irq);
 
@@ -157,7 +157,7 @@
 
 static void max8997_irq_unmask(struct irq_data *data)
 {
-	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
 	const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997,
 								data->irq);