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Subject[PATCH] extcon: arizona: Use bypass mode for MICVDD
Date
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>
---
This depends on the newly added regulator bypass support which will be
going in during the merge window so probably the easiest thing here is
if I apply this to the regulator tree? I will be publishing a signed
tag if you want to pull it in but for a simple, non-invasive change like
this it seems like more trouble than it's worth.

drivers/extcon/extcon-arizona.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index dc81d5f..cdab9e5 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -483,6 +483,11 @@ 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);

ret = input_register_device(info->input);
--
1.7.10.4


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