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extcon: arizona: Support additional configuration of microphone detection 

Allow systems to tune detection rate and debounce suitably for their
mechanical parameters.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
hifive-unleashed-5.1
Mark Brown 2013-01-21 17:36:33 +09:00
parent f9365d07dd
commit 2e033db5dd
2 changed files with 18 additions and 0 deletions
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12
drivers/extcon/extcon-arizona.c
View File

@ -907,6 +907,18 @@ static int arizona_extcon_probe(struct platform_device *pdev)
arizona->pdata.micd_bias_start_time
<< ARIZONA_MICD_BIAS_STARTTIME_SHIFT);
if (arizona->pdata.micd_rate)
regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
ARIZONA_MICD_RATE_MASK,
arizona->pdata.micd_rate
<< ARIZONA_MICD_RATE_SHIFT);
if (arizona->pdata.micd_dbtime)
regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
ARIZONA_MICD_DBTIME_MASK,
arizona->pdata.micd_dbtime
<< ARIZONA_MICD_DBTIME_SHIFT);
/*
* If we have a clamp use it, activating in conjunction with
* GPIO5 if that is connected for jack detect operation.

6
include/linux/mfd/arizona/pdata.h
View File

@ -111,6 +111,12 @@ struct arizona_pdata {
/** Mic detect ramp rate */
int micd_bias_start_time;
/** Mic detect sample rate */
int micd_rate;
/** Mic detect debounce level */
int micd_dbtime;
/** Headset polarity configurations */
struct arizona_micd_config *micd_configs;
int num_micd_configs;