diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-01-29 00:47:37 +0800 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2013-02-14 00:22:48 +0100 |
| commit | 3d91f8282c66d9edafa3980385324ce6a48edcda (patch) | |
| tree | a847372ae3547ba5887c29b8047b97f48dddf551 | |
| parent | 648a98808c6319dde03b64550dc64a61aaccc2b4 (diff) | |
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>
| -rw-r--r-- | drivers/mfd/arizona-core.c | 23 | ||||
| -rw-r--r-- | include/linux/mfd/arizona/pdata.h | 12 |
2 files changed, 35 insertions, 0 deletions
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 317ba0a4ea2..b562c7bf8a4 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] diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 8b1d1daaae1..37894d6a4f6 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 @@ struct arizona_pdata { /** 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]; |