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>
diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index 8b1d1da..37894d6 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 @@
/** 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];