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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>
hifive-unleashed-5.1
Mark Brown 2012-09-07 17:01:15 +08:00
parent 22c5fb6a7d
commit b8575a1143
1 changed files with 5 additions and 0 deletions
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5
drivers/extcon/extcon-arizona.c
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@ -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;