mfd: Convert wm8994 to use generic regmap irq_chip

Factor out the irq_chip implementation, substantially reducing the code
size for the driver.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/include/linux/mfd/wm8994/core.h b/include/linux/mfd/wm8994/core.h
index 4dd4409678ce..9eff2a351ec5 100644
--- a/include/linux/mfd/wm8994/core.h
+++ b/include/linux/mfd/wm8994/core.h
@@ -67,8 +67,7 @@ struct wm8994 {
         int irq_base;
 
         int irq;
-        u16 irq_masks_cur[WM8994_NUM_IRQ_REGS];
-        u16 irq_masks_cache[WM8994_NUM_IRQ_REGS];
+        struct regmap_irq_chip_data *irq_data;
 
         /* Used over suspend/resume */
         bool suspended;