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Subject[PATCH 04/11] extcon: arizona: Allow configuration of MICBIAS rise time
Date
Allow configuration of the rise time for MICBIAS via platform data, the
delay required depends on things like the external component selection.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
---
drivers/extcon/extcon-arizona.c | 6 ++++++
include/linux/mfd/arizona/pdata.h | 3 +++
2 files changed, 9 insertions(+)

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 9e1d104..635b707 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -417,6 +417,12 @@ static int arizona_extcon_probe(struct platform_device *pdev)
}
}

+ if (arizona->pdata.micd_bias_start_time)
+ regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_BIAS_STARTTIME_MASK,
+ arizona->pdata.micd_bias_start_time
+ << ARIZONA_MICD_BIAS_STARTTIME_SHIFT);
+
arizona_extcon_set_mode(info, 0);

info->input = devm_input_allocate_device(&pdev->dev);
diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index 8b1d1da..5b05088 100644
--- a/include/linux/mfd/arizona/pdata.h
+++ b/include/linux/mfd/arizona/pdata.h
@@ -99,6 +99,9 @@ struct arizona_pdata {
/** GPIO for mic detection polarity */
int micd_pol_gpio;

+ /** Mic detect ramp rate */
+ int micd_bias_start_time;
+
/** Headset polarity configurations */
struct arizona_micd_config *micd_configs;
int num_micd_configs;
--
1.7.10.4


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