mfd: Initial support for the WM5110

The WM5110 is a highly-integrated low-power audio system for smartphones,
tablets and other portable audio devices. It combines an advanced DSP
feature set with a flexible, high-performance audio hub CODEC.

The support is based on the Arizona core driver.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
index 17d20c0..98ac345 100644
--- a/drivers/mfd/arizona-irq.c
+++ b/drivers/mfd/arizona-irq.c
@@ -164,6 +164,12 @@
 		irq = &wm5102_irq;
 		break;
 #endif
+#ifdef CONFIG_MFD_WM5110
+	case WM5110:
+		aod = &wm5110_aod;
+		irq = &wm5110_irq;
+		break;
+#endif
 	default:
 		BUG_ON("Unknown Arizona class device" == NULL);
 		return -EINVAL;