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, 23 insertions, 0 deletions

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 317ba0a4ea25..b562c7bf8a46 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -510,6 +510,29 @@ int arizona_dev_init(struct arizona *arizona)
                 goto err_reset;
         }
 
+        for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
+                if (!arizona->pdata.micbias[i].mV)
+                        continue;
+
+                val = (arizona->pdata.micbias[i].mV - 1500) / 100;
+                val <<= ARIZONA_MICB1_LVL_SHIFT;
+
+                if (arizona->pdata.micbias[i].ext_cap)
+                        val |= ARIZONA_MICB1_EXT_CAP;
+
+                if (arizona->pdata.micbias[i].discharge)
+                        val |= ARIZONA_MICB1_DISCH;
+
+                if (arizona->pdata.micbias[i].fast_start)
+                        val |= ARIZONA_MICB1_RATE;
+
+                regmap_update_bits(arizona->regmap,
+                                   ARIZONA_MIC_BIAS_CTRL_1 + i,
+                                   ARIZONA_MICB1_LVL_MASK |
+                                   ARIZONA_MICB1_DISCH |
+                                   ARIZONA_MICB1_RATE, val);
+        }
+
         for (i = 0; i < ARIZONA_MAX_INPUT; i++) {
                 /* Default for both is 0 so noop with defaults */
                 val = arizona->pdata.dmic_ref[i]