ASoC: Add platform data for WM9081 IRQ pin configuration

The WM9081 IRQ output can be either active high or active low and can
support either CMOS or open drain modes.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

include/sound/wm9081.h

@@ -17,9 +17,12 @@ struct wm9081_retune_mobile_setting {
 	u16 config[20];
 };
 
-struct wm9081_retune_mobile_config {
-	struct wm9081_retune_mobile_setting *configs;
-	int num_configs;
+struct wm9081_pdata {
+	bool irq_high;   /* IRQ is active high */
+	bool irq_cmos;   /* IRQ is in CMOS mode */
+
+	struct wm9081_retune_mobile_setting *retune_configs;
+	int num_retune_configs;
 };
 
 #endif