diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-01-29 18:44:41 +0800 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2013-04-08 15:20:58 +0200 |
| commit | 544c7aadd7d4309ed01fcd787d393db67eb7eaea (patch) | |
| tree | 1637a7d4ed13d629ce930c01cdc487ce7afd62ac | |
| parent | 22c75fe7c772c4c47df47364d9e807dcf204d7c2 (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>
| -rw-r--r-- | drivers/mfd/arizona-core.c | 12 | ||||
| -rw-r--r-- | include/linux/mfd/arizona/pdata.h | 1 |
2 files changed, 12 insertions, 1 deletions
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 0962c558dc02..dd679e8601da 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); } diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 8755dd05ab78..554d903cdf41 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -78,6 +78,7 @@ struct arizona_micbias { unsigned int ext_cap:1; /** External capacitor fitted */ unsigned int discharge:1; /** Actively discharge */ unsigned int fast_start:1; /** Enable aggressive startup ramp rate */ + unsigned int bypass:1; /** Use bypass mode */ }; struct arizona_micd_config { |