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authorMark Brown <broonie@opensource.wolfsonmicro.com>2013-01-29 18:44:41 +0800
committerSamuel Ortiz <sameo@linux.intel.com>2013-04-08 15:20:58 +0200
commit544c7aadd7d4309ed01fcd787d393db67eb7eaea (patch)
tree1637a7d4ed13d629ce930c01cdc487ce7afd62ac /drivers/mfd/arizona-core.c
parent22c75fe7c772c4c47df47364d9e807dcf204d7c2 (diff)
mfd: arizona: Support configuring MICBIASes into bypass mode
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/arizona-core.c')
-rw-r--r--drivers/mfd/arizona-core.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 0962c558dc0..dd679e8601d 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -514,10 +514,16 @@ int arizona_dev_init(struct arizona *arizona)
}
for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
- if (!arizona->pdata.micbias[i].mV)
+ if (!arizona->pdata.micbias[i].mV &&
+ !arizona->pdata.micbias[i].bypass)
continue;
+ /* Apply default for bypass mode */
+ if (!arizona->pdata.micbias[i].mV)
+ arizona->pdata.micbias[i].mV = 2800;
+
val = (arizona->pdata.micbias[i].mV - 1500) / 100;
+
val <<= ARIZONA_MICB1_LVL_SHIFT;
if (arizona->pdata.micbias[i].ext_cap)
@@ -529,10 +535,14 @@ int arizona_dev_init(struct arizona *arizona)
if (arizona->pdata.micbias[i].fast_start)
val |= ARIZONA_MICB1_RATE;
+ if (arizona->pdata.micbias[i].bypass)
+ val |= ARIZONA_MICB1_BYPASS;
+
regmap_update_bits(arizona->regmap,
ARIZONA_MIC_BIAS_CTRL_1 + i,
ARIZONA_MICB1_LVL_MASK |
ARIZONA_MICB1_DISCH |
+ ARIZONA_MICB1_BYPASS |
ARIZONA_MICB1_RATE, val);
}