From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Mon, 21 Jan 2013 08:36:33 +0000 (+0900)
Subject: extcon: arizona: Support additional configuration of microphone detection
X-Git-Tag: v3.9-rc1~124^2~8^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2e033db5ddf299de2ae568919d78b0258a5a6423;p=platform%2Fkernel%2Flinux-exynos.git

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>
---

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;