mfd: arizona: Provide platform data for MICBIAS configuration

Allow the MICBIAS voltages and other attributes to be configured by the
platform.

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

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index 8b1d1daaae16..37894d6a4f6f 100644
--- a/include/linux/mfd/arizona/pdata.h
+++ b/include/linux/mfd/arizona/pdata.h
@@ -56,6 +56,8 @@
 #define ARIZONA_DMIC_MICBIAS2 2
 #define ARIZONA_DMIC_MICBIAS3 3
 
+#define ARIZONA_MAX_MICBIAS 3
+
 #define ARIZONA_INMODE_DIFF 0
 #define ARIZONA_INMODE_SE   1
 #define ARIZONA_INMODE_DMIC 2
@@ -69,6 +71,13 @@
 
 struct regulator_init_data;
 
+struct arizona_micbias {
+        int mV;                    /** Regulated voltage */
+        unsigned int ext_cap:1;    /** External capacitor fitted */
+        unsigned int discharge:1;  /** Actively discharge */
+        unsigned int fast_start:1; /** Enable aggressive startup ramp rate */
+};
+
 struct arizona_micd_config {
         unsigned int src;
         unsigned int bias;
@@ -106,6 +115,9 @@ struct arizona_pdata {
         /** Reference voltage for DMIC inputs */
         int dmic_ref[ARIZONA_MAX_INPUT];
 
+        /** MICBIAS configurations */
+        struct arizona_micbias micbias[ARIZONA_MAX_MICBIAS];
+
         /** Mode of input structures */
         int inmode[ARIZONA_MAX_INPUT];