diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-01 19:03:52 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-02 11:53:54 +0100 |
| commit | e56a0a572be150c79cdbf62ff98f4a63419e1c0b (patch) | |
| tree | c9d033b1f0e0adeed9252164b031a33b5a9b6200 | |
| parent | 77ff4f95d77ddb14fe827e70d8b4be4a692790e9 (diff) | |
extcon: arizona: Allow pull to be disabled on GPIO5 when used for JACKET
In some designs an external pull won't be needed.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| -rw-r--r-- | drivers/extcon/extcon-arizona.c | 9 | ||||
| -rw-r--r-- | include/linux/mfd/arizona/pdata.h | 3 |
2 files changed, 10 insertions, 2 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 95748d3cbc4e..132bc99fdc06 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -986,6 +986,7 @@ static int arizona_extcon_probe(struct platform_device *pdev) struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); struct arizona_pdata *pdata; struct arizona_extcon_info *info; + unsigned int val; int jack_irq_fall, jack_irq_rise; int ret, mode, i, j; @@ -1172,9 +1173,13 @@ static int arizona_extcon_probe(struct platform_device *pdev) */ if (info->micd_clamp) { if (arizona->pdata.jd_gpio5) { - /* Put the GPIO into input mode */ + /* Put the GPIO into input mode with optional pull */ + val = 0xc101; + if (arizona->pdata.jd_gpio5_nopull) + val &= ~ARIZONA_GPN_PU; + regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL, - 0xc101); + val); regmap_update_bits(arizona->regmap, ARIZONA_MICD_CLAMP_CONTROL, diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index eb11a8ac6db2..008b8c40549f 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -122,6 +122,9 @@ struct arizona_pdata { /** GPIO5 is used for jack detection */ bool jd_gpio5; + /** Internal pull on GPIO5 is disabled when used for jack detection */ + bool jd_gpio5_nopull; + /** Use the headphone detect circuit to identify the accessory */ bool hpdet_acc_id; |