ASoC: wm2200: Provide platform data for MICBIAS configuration

Signed-off-by: Chris Rattray <crattray@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

include/sound/wm2200.h

@@ -12,6 +12,7 @@
 #define __LINUX_SND_WM2200_H
 
 #define WM2200_GPIO_SET 0x10000
+#define WM2200_MAX_MICBIAS 2
 
 enum wm2200_in_mode {
 	WM2200_IN_SE = 0,
@@ -25,6 +26,24 @@ enum wm2200_dmic_sup {
 	WM2200_DMIC_SUP_MICBIAS2 = 2,
 };
 
+enum wm2200_mbias_lvl {
+	WM2200_MBIAS_LVL_1V5 = 1,
+	WM2200_MBIAS_LVL_1V8 = 2,
+	WM2200_MBIAS_LVL_1V9 = 3,
+	WM2200_MBIAS_LVL_2V0 = 4,
+	WM2200_MBIAS_LVL_2V2 = 5,
+	WM2200_MBIAS_LVL_2V4 = 6,
+	WM2200_MBIAS_LVL_2V5 = 7,
+	WM2200_MBIAS_LVL_2V6 = 8,
+};
+
+struct wm2200_micbias {
+	enum wm2200_mbias_lvl mb_lvl;      /** Regulated voltage */
+	unsigned int discharge:1;          /** Actively discharge */
+	unsigned int fast_start:1;         /** Enable aggressive startup ramp rate */
+	unsigned int bypass:1;             /** Use bypass mode */
+};
+
 struct wm2200_pdata {
 	int reset;      /** GPIO controlling /RESET, if any */
 	int ldo_ena;    /** GPIO controlling LODENA, if any */
@@ -35,7 +54,8 @@ struct wm2200_pdata {
 	enum wm2200_in_mode in_mode[3];
 	enum wm2200_dmic_sup dmic_sup[3];
 
-	int micbias_cfg[2];  /** Register value to configure MICBIAS */
+	/** MICBIAS configurations */
+	struct wm2200_micbias micbias[WM2200_MAX_MICBIAS];
 };
 
 #endif