From b8575a1143f6d57a791c946291ba4363e07e32a3 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Fri, 7 Sep 2012 17:01:15 +0800
Subject: extcon: arizona: Use bypass mode for MICVDD

We can perform microphone detection with MICVDD in bypass mode so try to
enable that during startup for minimal power - other users or machine
constraints will prevent bypass mode being activated if it is unsuitable.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/extcon/extcon-arizona.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'drivers/extcon')

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 427a289f32a5..6c19833ed2d0 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -434,6 +434,11 @@ static int __devinit arizona_extcon_probe(struct platform_device *pdev)
 	regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
 			   ARIZONA_JD1_ENA, ARIZONA_JD1_ENA);
 
+	ret = regulator_allow_bypass(info->micvdd, true);
+	if (ret != 0)
+		dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n",
+			 ret);
+
 	pm_runtime_put(&pdev->dev);
 
 	return 0;
-- 
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