mfd: max899x: Avoid redundant irq_data lookup

It's pretty silly to do

     irq_data *d = irq_get_irq_data(irq_data->irq);

because that results in d = irq_data, but goes through a lookup of the
irq_data. Use irq_data directly.

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 0350848..b95a46d 100644
--- a/drivers/mfd/max8997-irq.c
+++ b/drivers/mfd/max8997-irq.c
@@ -140,9 +140,8 @@
 }
 
 static const inline struct max8997_irq_data *
-irq_to_max8997_irq(struct max8997_dev *max8997, int irq)
+irq_to_max8997_irq(struct max8997_dev *max8997, struct irq_data *data)
 {
-	struct irq_data *data = irq_get_irq_data(irq);
 	return &max8997_irqs[data->hwirq];
 }
 
@@ -150,7 +149,7 @@
 {
 	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);
+								     data);
 
 	max8997->irq_masks_cur[irq_data->group] |= irq_data->mask;
 }
@@ -159,7 +158,7 @@
 {
 	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);
+								     data);
 
 	max8997->irq_masks_cur[irq_data->group] &= ~irq_data->mask;
 }