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extcon: arizona: support inverted jack detect switch 

Add config option for inverted jack detect switch that
opens when jack is inserted.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
[Acked by Lee Jones for MFD part]
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Richard Fitzgerald 2014-05-23 12:54:57 +01:00 committed by Chanwoo Choi
parent 7171511eae
commit a288d64871
2 changed files with 29 additions and 8 deletions
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34
drivers/extcon/extcon-arizona.c
View File

@ -39,6 +39,11 @@
#define ARIZONA_ACCDET_MODE_HPL 1
#define ARIZONA_ACCDET_MODE_HPR 2
#define ARIZONA_MICD_CLAMP_MODE_JDL 0x4
#define ARIZONA_MICD_CLAMP_MODE_JDH 0x5
#define ARIZONA_MICD_CLAMP_MODE_JDL_GP5H 0x9
#define ARIZONA_MICD_CLAMP_MODE_JDH_GP5H 0xb
#define ARIZONA_HPDET_MAX 10000
#define HPDET_DEBOUNCE 500
@ -962,10 +967,16 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
if (arizona->pdata.jd_gpio5) {
mask = ARIZONA_MICD_CLAMP_STS;
present = 0;
if (arizona->pdata.jd_invert)
present = ARIZONA_MICD_CLAMP_STS;
else
present = 0;
} else {
mask = ARIZONA_JD1_STS;
present = ARIZONA_JD1_STS;
if (arizona->pdata.jd_invert)
present = 0;
else
present = ARIZONA_JD1_STS;
}
ret = regmap_read(arizona->regmap, ARIZONA_AOD_IRQ_RAW_STATUS, &val);
@ -1096,6 +1107,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
struct arizona_pdata *pdata = &arizona->pdata;
struct arizona_extcon_info *info;
unsigned int val;
unsigned int clamp_mode;
int jack_irq_fall, jack_irq_rise;
int ret, mode, i, j;
@ -1305,15 +1317,21 @@ static int arizona_extcon_probe(struct platform_device *pdev)
regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL,
val);
regmap_update_bits(arizona->regmap,
ARIZONA_MICD_CLAMP_CONTROL,
ARIZONA_MICD_CLAMP_MODE_MASK, 0x9);
if (arizona->pdata.jd_invert)
clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH_GP5H;
else
clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL_GP5H;
} else {
regmap_update_bits(arizona->regmap,
ARIZONA_MICD_CLAMP_CONTROL,
ARIZONA_MICD_CLAMP_MODE_MASK, 0x4);
if (arizona->pdata.jd_invert)
clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH;
else
clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL;
}
regmap_update_bits(arizona->regmap,
ARIZONA_MICD_CLAMP_CONTROL,
ARIZONA_MICD_CLAMP_MODE_MASK, clamp_mode);
regmap_update_bits(arizona->regmap,
ARIZONA_JACK_DETECT_DEBOUNCE,
ARIZONA_MICD_CLAMP_DB,

3
include/linux/mfd/arizona/pdata.h
View File

@ -127,6 +127,9 @@ struct arizona_pdata {
/** Internal pull on GPIO5 is disabled when used for jack detection */
bool jd_gpio5_nopull;
/** set to true if jackdet contact opens on insert */
bool jd_invert;
/** Use the headphone detect circuit to identify the accessory */
bool hpdet_acc_id;