[PATCH 04/11] extcon: arizona: Support additional configuration of microphone detection
From: Mark Brown
Date: Mon Feb 11 2013 - 11:27:58 EST
Allow systems to tune detection rate and debounce suitably for their
mechanical parameters.
Signed-off-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
drivers/extcon/extcon-arizona.c | 12 ++++++++++++
include/linux/mfd/arizona/pdata.h | 6 ++++++
2 files changed, 18 insertions(+)
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index ab8b9c7..d7e1047 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -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.
diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index bcbe4fd..2f5f08e 100644
--- a/include/linux/mfd/arizona/pdata.h
+++ b/include/linux/mfd/arizona/pdata.h
@@ -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;
--
1.7.10.4
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