From 544c7aadd7d4309ed01fcd787d393db67eb7eaea Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 29 Jan 2013 18:44:41 +0800 Subject: mfd: arizona: Support configuring MICBIASes into bypass mode Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/arizona-core.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 0962c55..dd679e8 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); } -- cgit v1.1